Merge pull request #12752 from esphome/bump-2025.12.3

2025.12.3

.ai/instructions.md

@@ -276,12 +276,12 @@ This document provides essential context for AI models interacting with this pro
 ## 7. Specific Instructions for AI Collaboration
 
 *   **Contribution Workflow (Pull Request Process):**
-    1.  **Fork & Branch:** Create a new branch in your fork.
+    1.  **Fork & Branch:** Create a new branch based on the `dev` branch (always use `git checkout -b <branch-name> dev` to ensure you're branching from `dev`, not the currently checked out branch).
     2.  **Make Changes:** Adhere to all coding conventions and patterns.
     3.  **Test:** Create component tests for all supported platforms and run the full test suite locally.
     4.  **Lint:** Run `pre-commit` to ensure code is compliant.
     5.  **Commit:** Commit your changes. There is no strict format for commit messages.
-    6.  **Pull Request:** Submit a PR against the `dev` branch. The Pull Request title should have a prefix of the component being worked on (e.g., `[display] Fix bug`, `[abc123] Add new component`). Update documentation, examples, and add `CODEOWNERS` entries as needed. Pull requests should always be made with the PULL_REQUEST_TEMPLATE.md template filled out correctly.
+    6.  **Pull Request:** Submit a PR against the `dev` branch. The Pull Request title should have a prefix of the component being worked on (e.g., `[display] Fix bug`, `[abc123] Add new component`). Update documentation, examples, and add `CODEOWNERS` entries as needed. Pull requests should always be made using the `.github/PULL_REQUEST_TEMPLATE.md` template - fill out all sections completely without removing any parts of the template.
 
 *   **Documentation Contributions:**
     *   Documentation is hosted in the separate `esphome/esphome-docs` repository.
@@ -402,35 +402,45 @@ This document provides essential context for AI models interacting with this pro
             _use_feature = True
         ```
 
-        **Good Pattern (CORE.data with Helpers):**
+        **Bad Pattern (Flat Keys):**
         ```python
+        # Don't do this - keys should be namespaced under component domain
+        MY_FEATURE_KEY = "my_component_feature"
+        CORE.data[MY_FEATURE_KEY] = True
+        ```
+
+        **Good Pattern (dataclass):**
+        ```python
+        from dataclasses import dataclass, field
         from esphome.core import CORE
 
-        # Keys for CORE.data storage
-        COMPONENT_STATE_KEY = "my_component_state"
-        USE_FEATURE_KEY = "my_component_use_feature"
+        DOMAIN = "my_component"
 
-        def _get_component_state() -> list:
-            """Get component state from CORE.data."""
-            return CORE.data.setdefault(COMPONENT_STATE_KEY, [])
+        @dataclass
+        class MyComponentData:
+            feature_enabled: bool = False
+            item_count: int = 0
+            items: list[str] = field(default_factory=list)
 
-        def _get_use_feature() -> bool | None:
-            """Get feature flag from CORE.data."""
-            return CORE.data.get(USE_FEATURE_KEY)
+        def _get_data() -> MyComponentData:
+            if DOMAIN not in CORE.data:
+                CORE.data[DOMAIN] = MyComponentData()
+            return CORE.data[DOMAIN]
 
-        def _set_use_feature(value: bool) -> None:
-            """Set feature flag in CORE.data."""
-            CORE.data[USE_FEATURE_KEY] = value
+        def request_feature() -> None:
+            _get_data().feature_enabled = True
 
-        def enable_feature():
-            _set_use_feature(True)
+        def add_item(item: str) -> None:
+            _get_data().items.append(item)
         ```
 
+        If you need a real-world example, search for components that use `@dataclass` with `CORE.data` in the codebase. Note: Some components may use `TypedDict` for dictionary-based storage; both patterns are acceptable depending on your needs.
+
         **Why this matters:**
         - Module-level globals persist between compilation runs if the dashboard doesn't fork/exec
         - `CORE.data` automatically clears between runs
-        - Typed helper functions provide better IDE support and maintainability
-        - Encapsulation makes state management explicit and testable
+        - Namespacing under `DOMAIN` prevents key collisions between components
+        - `@dataclass` provides type safety and cleaner attribute access
 
 *   **Security:** Be mindful of security when making changes to the API, web server, or any other network-related code. Do not hardcode secrets or keys.
 

.clang-tidy.hash

@@ -1 +1 @@
-3d46b63015d761c85ca9cb77ab79a389509e5776701fb22aed16e7b79d432c0c
+5969e705693278d984c5292e998df0cbaf34f7e1f04dfc7f7b7ad7168527bfa7

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,6 +7,7 @@
 - [ ] Bugfix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Developer breaking change (an API change that could break external components)
 - [ ] Code quality improvements to existing code or addition of tests
 - [ ] Other
 

.github/actions/restore-python/action.yml

@@ -17,7 +17,7 @@ runs:
   steps:
     - name: Set up Python ${{ inputs.python-version }}
       id: python
-      uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+      uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
       with:
         python-version: ${{ inputs.python-version }}
     - name: Restore Python virtual environment

.github/workflows/auto-label-pr.yml

@@ -22,11 +22,11 @@ jobs:
     if: github.event.action != 'labeled' || github.event.sender.type != 'Bot'
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@67018539274d69449ef7c02e8e71183d1719ab42 # v2
+        uses: actions/create-github-app-token@7e473efe3cb98aa54f8d4bac15400b15fad77d94 # v2
         with:
           app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
@@ -68,6 +68,7 @@ jobs:
               'bugfix',
               'new-feature',
               'breaking-change',
+              'developer-breaking-change',
               'code-quality'
             ];
 
@@ -367,6 +368,7 @@ jobs:
                 { pattern: /- \[x\] Bugfix \(non-breaking change which fixes an issue\)/i, label: 'bugfix' },
                 { pattern: /- \[x\] New feature \(non-breaking change which adds functionality\)/i, label: 'new-feature' },
                 { pattern: /- \[x\] Breaking change \(fix or feature that would cause existing functionality to not work as expected\)/i, label: 'breaking-change' },
+                { pattern: /- \[x\] Developer breaking change \(an API change that could break external components\)/i, label: 'developer-breaking-change' },
                 { pattern: /- \[x\] Code quality improvements to existing code or addition of tests/i, label: 'code-quality' }
               ];
 

.github/workflows/ci-api-proto.yml

@@ -21,9 +21,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
 

.github/workflows/ci-clang-tidy-hash.yml

@@ -21,10 +21,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
 

.github/workflows/ci-docker.yml

@@ -43,9 +43,9 @@ jobs:
           - "docker"
           # - "lint"
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
       - name: Set up Docker Buildx

.github/workflows/ci-memory-impact-comment.yml

@@ -49,7 +49,7 @@ jobs:
 
       - name: Check out code from base repository
         if: steps.pr.outputs.skip != 'true'
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           # Always check out from the base repository (esphome/esphome), never from forks
           # Use the PR's target branch to ensure we run trusted code from the main repo

.github/workflows/ci.yml

@@ -36,13 +36,13 @@ jobs:
       cache-key: ${{ steps.cache-key.outputs.key }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Generate cache-key
         id: cache-key
         run: echo key="${{ hashFiles('requirements.txt', 'requirements_test.txt', '.pre-commit-config.yaml') }}" >> $GITHUB_OUTPUT
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
       - name: Restore Python virtual environment
@@ -70,7 +70,7 @@ jobs:
     if: needs.determine-jobs.outputs.python-linters == 'true'
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -91,7 +91,7 @@ jobs:
       - common
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -132,7 +132,7 @@ jobs:
       - common
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Restore Python
         id: restore-python
         uses: ./.github/actions/restore-python
@@ -183,7 +183,7 @@ jobs:
       component-test-batches: ${{ steps.determine.outputs.component-test-batches }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           # Fetch enough history to find the merge base
           fetch-depth: 2
@@ -237,10 +237,10 @@ jobs:
     if: needs.determine-jobs.outputs.integration-tests == 'true'
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Set up Python 3.13
         id: python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.13"
       - name: Restore Python virtual environment
@@ -273,7 +273,7 @@ jobs:
     if: github.event_name == 'pull_request' && (needs.determine-jobs.outputs.cpp-unit-tests-run-all == 'true' || needs.determine-jobs.outputs.cpp-unit-tests-components != '[]')
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Restore Python
         uses: ./.github/actions/restore-python
@@ -321,7 +321,7 @@ jobs:
 
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           # Need history for HEAD~1 to work for checking changed files
           fetch-depth: 2
@@ -400,7 +400,7 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           # Need history for HEAD~1 to work for checking changed files
           fetch-depth: 2
@@ -489,7 +489,7 @@ jobs:
 
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           # Need history for HEAD~1 to work for checking changed files
           fetch-depth: 2
@@ -577,7 +577,7 @@ jobs:
           version: 1.0
 
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -662,13 +662,13 @@ jobs:
     if: github.event_name == 'pull_request' && !startsWith(github.base_ref, 'beta') && !startsWith(github.base_ref, 'release')
     steps:
       - name: Check out code from GitHub
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
-      - uses: esphome/action@43cd1109c09c544d97196f7730ee5b2e0cc6d81e # v3.0.1 fork with pinned actions/cache
+      - uses: esphome/pre-commit-action@43cd1109c09c544d97196f7730ee5b2e0cc6d81e # v3.0.1 fork with pinned actions/cache
         env:
           SKIP: pylint,clang-tidy-hash
       - uses: pre-commit-ci/lite-action@5d6cc0eb514c891a40562a58a8e71576c5c7fb43 # v1.1.0
@@ -688,7 +688,7 @@ jobs:
       skip: ${{ steps.check-script.outputs.skip }}
     steps:
       - name: Check out target branch
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ github.base_ref }}
 
@@ -840,7 +840,7 @@ jobs:
       flash_usage: ${{ steps.extract.outputs.flash_usage }}
     steps:
       - name: Check out PR branch
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -908,7 +908,7 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - name: Check out code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Restore Python
         uses: ./.github/actions/restore-python
         with:
@@ -959,13 +959,13 @@ jobs:
       - memory-impact-comment
     if: always()
     steps:
-      - name: Success
-        if: ${{ !(contains(needs.*.result, 'failure')) }}
-        run: exit 0
-      - name: Failure
-        if: ${{ contains(needs.*.result, 'failure') }}
+      - name: Check job results
         env:
-          JSON_DOC: ${{ toJSON(needs) }}
+          NEEDS_JSON: ${{ toJSON(needs) }}
         run: |
-          echo $JSON_DOC | jq
-          exit 1
+          # memory-impact-target-branch is allowed to fail without blocking CI.
+          # This job builds the target branch (dev/beta/release) which may fail because:
+          # 1. The target branch has a build issue independent of this PR
+          # 2. This PR fixes a build issue on the target branch
+          # In either case, we only care that the PR branch builds successfully.
+          echo "$NEEDS_JSON" | jq -e 'del(.["memory-impact-target-branch"]) | all(.result != "failure")'

.github/workflows/codeql.yml

@@ -54,11 +54,11 @@ jobs:
             # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
       - name: Checkout repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@0499de31b99561a6d14a36a5f662c2a54f91beee # v4.31.2
+        uses: github/codeql-action/init@cf1bb45a277cb3c205638b2cd5c984db1c46a412 # v4.31.7
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -86,6 +86,6 @@ jobs:
           exit 1
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@0499de31b99561a6d14a36a5f662c2a54f91beee # v4.31.2
+        uses: github/codeql-action/analyze@cf1bb45a277cb3c205638b2cd5c984db1c46a412 # v4.31.7
         with:
           category: "/language:${{matrix.language}}"

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
       branch_build: ${{ steps.tag.outputs.branch_build }}
       deploy_env: ${{ steps.tag.outputs.deploy_env }}
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Get tag
         id: tag
         # yamllint disable rule:line-length
@@ -60,9 +60,9 @@ jobs:
       contents: read
       id-token: write
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.x"
       - name: Build
@@ -92,9 +92,9 @@ jobs:
             os: "ubuntu-24.04-arm"
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
 
@@ -168,7 +168,7 @@ jobs:
           - ghcr
           - dockerhub
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Download digests
         uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
@@ -219,10 +219,19 @@ jobs:
       - init
       - deploy-manifest
     steps:
+      - name: Generate a token
+        id: generate-token
+        uses: actions/create-github-app-token@7e473efe3cb98aa54f8d4bac15400b15fad77d94 # v2.2.0
+        with:
+          app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
+          private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
+          owner: esphome
+          repositories: home-assistant-addon
+
       - name: Trigger Workflow
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
-          github-token: ${{ secrets.DEPLOY_HA_ADDON_REPO_TOKEN }}
+          github-token: ${{ steps.generate-token.outputs.token }}
           script: |
             let description = "ESPHome";
             if (context.eventName == "release") {
@@ -245,10 +254,19 @@ jobs:
     needs: [init]
     environment: ${{ needs.init.outputs.deploy_env }}
     steps:
+      - name: Generate a token
+        id: generate-token
+        uses: actions/create-github-app-token@7e473efe3cb98aa54f8d4bac15400b15fad77d94 # v2.2.0
+        with:
+          app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
+          private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
+          owner: esphome
+          repositories: esphome-schema
+
       - name: Trigger Workflow
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
-          github-token: ${{ secrets.DEPLOY_ESPHOME_SCHEMA_REPO_TOKEN }}
+          github-token: ${{ steps.generate-token.outputs.token }}
           script: |
             github.rest.actions.createWorkflowDispatch({
               owner: "esphome",
@@ -259,3 +277,34 @@ jobs:
                 version: "${{ needs.init.outputs.tag }}",
               }
             })
+
+  version-notifier:
+    if: github.repository == 'esphome/esphome' && needs.init.outputs.branch_build == 'false'
+    runs-on: ubuntu-latest
+    needs:
+      - init
+      - deploy-manifest
+    steps:
+      - name: Generate a token
+        id: generate-token
+        uses: actions/create-github-app-token@7e473efe3cb98aa54f8d4bac15400b15fad77d94 # v2.2.0
+        with:
+          app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
+          private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
+          owner: esphome
+          repositories: version-notifier
+
+      - name: Trigger Workflow
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        with:
+          github-token: ${{ steps.generate-token.outputs.token }}
+          script: |
+            github.rest.actions.createWorkflowDispatch({
+              owner: "esphome",
+              repo: "version-notifier",
+              workflow_id: "notify.yml",
+              ref: "main",
+              inputs: {
+                version: "${{ needs.init.outputs.tag }}",
+              }
+            })

.github/workflows/stale.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Stale
-        uses: actions/stale@5f858e3efba33a5ca4407a664cc011ad407f2008 # v10.1.0
+        uses: actions/stale@997185467fa4f803885201cee163a9f38240193d # v10.1.1
         with:
           debug-only: ${{ github.ref != 'refs/heads/dev' }} # Dry-run when not run on dev branch
           remove-stale-when-updated: true

.github/workflows/sync-device-classes.yml

@@ -13,16 +13,16 @@ jobs:
     if: github.repository == 'esphome/esphome'
     steps:
       - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Checkout Home Assistant
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           repository: home-assistant/core
           path: lib/home-assistant
 
       - name: Setup Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: 3.13
 
@@ -41,7 +41,7 @@ jobs:
           python script/run-in-env.py pre-commit run --all-files
 
       - name: Commit changes
-        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
+        uses: peter-evans/create-pull-request@22a9089034f40e5a961c8808d113e2c98fb63676 # v7.0.11
         with:
           commit-message: "Synchronise Device Classes from Home Assistant"
           committer: esphomebot <esphome@openhomefoundation.org>

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.14.4
+    rev: v0.14.8
     hooks:
       # Run the linter.
       - id: ruff

CODEOWNERS

@@ -21,6 +21,7 @@ esphome/components/adc128s102/* @DeerMaximum
 esphome/components/addressable_light/* @justfalter
 esphome/components/ade7880/* @kpfleming
 esphome/components/ade7953/* @angelnu
+esphome/components/ade7953_base/* @angelnu
 esphome/components/ade7953_i2c/* @angelnu
 esphome/components/ade7953_spi/* @angelnu
 esphome/components/ads1118/* @solomondg1
@@ -72,6 +73,7 @@ esphome/components/bl0942/* @dbuezas @dwmw2
 esphome/components/ble_client/* @buxtronix @clydebarrow
 esphome/components/ble_nus/* @tomaszduda23
 esphome/components/bluetooth_proxy/* @bdraco @jesserockz
+esphome/components/bm8563/* @abmantis
 esphome/components/bme280_base/* @esphome/core
 esphome/components/bme280_spi/* @apbodrov
 esphome/components/bme680_bsec/* @trvrnrth
@@ -95,6 +97,7 @@ esphome/components/camera_encoder/* @DT-art1
 esphome/components/canbus/* @danielschramm @mvturnho
 esphome/components/cap1188/* @mreditor97
 esphome/components/captive_portal/* @esphome/core
+esphome/components/cc1101/* @gabest11 @lygris
 esphome/components/ccs811/* @habbie
 esphome/components/cd74hc4067/* @asoehlke
 esphome/components/ch422g/* @clydebarrow @jesterret
@@ -188,6 +191,7 @@ esphome/components/gps/* @coogle @ximex
 esphome/components/graph/* @synco
 esphome/components/graphical_display_menu/* @MrMDavidson
 esphome/components/gree/* @orestismers
+esphome/components/gree/switch/* @nagyrobi
 esphome/components/grove_gas_mc_v2/* @YorkshireIoT
 esphome/components/grove_tb6612fng/* @max246
 esphome/components/growatt_solar/* @leeuwte
@@ -202,11 +206,13 @@ esphome/components/havells_solar/* @sourabhjaiswal
 esphome/components/hbridge/fan/* @WeekendWarrior
 esphome/components/hbridge/light/* @DotNetDann
 esphome/components/hbridge/switch/* @dwmw2
+esphome/components/hc8/* @omartijn
 esphome/components/hdc2010/* @optimusprimespace @ssieb
 esphome/components/he60r/* @clydebarrow
 esphome/components/heatpumpir/* @rob-deutsch
 esphome/components/hitachi_ac424/* @sourabhjaiswal
 esphome/components/hlk_fm22x/* @OnFreund
+esphome/components/hlw8032/* @rici4kubicek
 esphome/components/hm3301/* @freekode
 esphome/components/hmac_md5/* @dwmw2
 esphome/components/homeassistant/* @esphome/core @OttoWinter
@@ -222,6 +228,7 @@ esphome/components/hte501/* @Stock-M
 esphome/components/http_request/ota/* @oarcher
 esphome/components/http_request/update/* @jesserockz
 esphome/components/htu31d/* @betterengineering
+esphome/components/hub75/* @stuartparmenter
 esphome/components/hydreon_rgxx/* @functionpointer
 esphome/components/hyt271/* @Philippe12
 esphome/components/i2c/* @esphome/core
@@ -301,7 +308,7 @@ esphome/components/md5/* @esphome/core
 esphome/components/mdns/* @esphome/core
 esphome/components/media_player/* @jesserockz
 esphome/components/micro_wake_word/* @jesserockz @kahrendt
-esphome/components/micronova/* @jorre05
+esphome/components/micronova/* @edenhaus @jorre05
 esphome/components/microphone/* @jesserockz @kahrendt
 esphome/components/mics_4514/* @jesserockz
 esphome/components/midea/* @dudanov
@@ -460,6 +467,7 @@ esphome/components/st7735/* @SenexCrenshaw
 esphome/components/st7789v/* @kbx81
 esphome/components/st7920/* @marsjan155
 esphome/components/statsd/* @Links2004
+esphome/components/stts22h/* @B48D81EFCC
 esphome/components/substitutions/* @esphome/core
 esphome/components/sun/* @OttoWinter
 esphome/components/sun_gtil2/* @Mat931
@@ -481,6 +489,7 @@ esphome/components/template/datetime/* @rfdarter
 esphome/components/template/event/* @nohat
 esphome/components/template/fan/* @ssieb
 esphome/components/text/* @mauritskorse
+esphome/components/thermopro_ble/* @sittner
 esphome/components/thermostat/* @kbx81
 esphome/components/time/* @esphome/core
 esphome/components/tinyusb/* @kbx81
@@ -515,6 +524,7 @@ esphome/components/ufire_ise/* @pvizeli
 esphome/components/ultrasonic/* @OttoWinter
 esphome/components/update/* @jesserockz
 esphome/components/uponor_smatrix/* @kroimon
+esphome/components/usb_cdc_acm/* @kbx81
 esphome/components/usb_host/* @clydebarrow
 esphome/components/usb_uart/* @clydebarrow
 esphome/components/valve/* @esphome/core

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 We welcome contributions to the ESPHome suite of code and documentation!
 
-Please read our [contributing guide](https://esphome.io/guides/contributing.html) if you wish to contribute to the
+Please read our [contributing guide](https://developers.esphome.io/contributing/code/) if you wish to contribute to the
 project and be sure to join us on [Discord](https://discord.gg/KhAMKrd).
 
 **See also:**

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2025.11.0b4
+PROJECT_NUMBER         = 2025.12.3
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

README.md

@@ -2,8 +2,8 @@
 
 <a href="https://esphome.io/">
   <picture>
-    <source media="(prefers-color-scheme: dark)" srcset="https://esphome.io/_static/logo-text-on-dark.svg", alt="ESPHome Logo">
-    <img src="https://esphome.io/_static/logo-text-on-light.svg" alt="ESPHome Logo">
+    <source media="(prefers-color-scheme: dark)" srcset="https://media.esphome.io/logo/logo-text-on-dark.svg">
+    <img src="https://media.esphome.io/logo/logo-text-on-light.svg" alt="ESPHome Logo">
   </picture>
 </a>
 

esphome/__main__.py

@@ -944,6 +944,7 @@ def command_analyze_memory(args: ArgsProtocol, config: ConfigType) -> int:
     """
     from esphome import platformio_api
     from esphome.analyze_memory.cli import MemoryAnalyzerCLI
+    from esphome.analyze_memory.ram_strings import RamStringsAnalyzer
 
     # Always compile to ensure fresh data (fast if no changes - just relinks)
     exit_code = write_cpp(config)
@@ -966,7 +967,7 @@ def command_analyze_memory(args: ArgsProtocol, config: ConfigType) -> int:
     external_components = detect_external_components(config)
     _LOGGER.debug("Detected external components: %s", external_components)
 
-    # Perform memory analysis
+    # Perform component memory analysis
     _LOGGER.info("Analyzing memory usage...")
     analyzer = MemoryAnalyzerCLI(
         str(firmware_elf),
@@ -976,11 +977,28 @@ def command_analyze_memory(args: ArgsProtocol, config: ConfigType) -> int:
     )
     analyzer.analyze()
 
-    # Generate and display report
+    # Generate and display component report
     report = analyzer.generate_report()
     print()
     print(report)
 
+    # Perform RAM strings analysis
+    _LOGGER.info("Analyzing RAM strings...")
+    try:
+        ram_analyzer = RamStringsAnalyzer(
+            str(firmware_elf),
+            objdump_path=idedata.objdump_path,
+            platform=CORE.target_platform,
+        )
+        ram_analyzer.analyze()
+
+        # Generate and display RAM strings report
+        ram_report = ram_analyzer.generate_report()
+        print()
+        print(ram_report)
+    except Exception as e:  # pylint: disable=broad-except
+        _LOGGER.warning("RAM strings analysis failed: %s", e)
+
     return 0
 
 
@@ -1319,7 +1337,7 @@ def parse_args(argv):
         "clean-all", help="Clean all build and platform files."
     )
     parser_clean_all.add_argument(
-        "configuration", help="Your YAML configuration directory.", nargs="*"
+        "configuration", help="Your YAML file or configuration directory.", nargs="*"
     )
 
     parser_dashboard = subparsers.add_parser(

esphome/analyze_memory/__init__.py

@@ -15,6 +15,7 @@ from .const import (
     SECTION_TO_ATTR,
     SYMBOL_PATTERNS,
 )
+from .demangle import batch_demangle
 from .helpers import (
     get_component_class_patterns,
     get_esphome_components,
@@ -27,15 +28,6 @@ if TYPE_CHECKING:
 
 _LOGGER = logging.getLogger(__name__)
 
-# GCC global constructor/destructor prefix annotations
-_GCC_PREFIX_ANNOTATIONS = {
-    "_GLOBAL__sub_I_": "global constructor for",
-    "_GLOBAL__sub_D_": "global destructor for",
-}
-
-# GCC optimization suffix pattern (e.g., $isra$0, $part$1, $constprop$2)
-_GCC_OPTIMIZATION_SUFFIX_PATTERN = re.compile(r"(\$(?:isra|part|constprop)\$\d+)")
-
 # C++ runtime patterns for categorization
 _CPP_RUNTIME_PATTERNS = frozenset(["vtable", "typeinfo", "thunk"])
 
@@ -312,168 +304,9 @@ class MemoryAnalyzer:
         if not symbols:
             return
 
-        # Try to find the appropriate c++filt for the platform
-        cppfilt_cmd = "c++filt"
-
         _LOGGER.info("Demangling %d symbols", len(symbols))
-        _LOGGER.debug("objdump_path = %s", self.objdump_path)
-
-        # Check if we have a toolchain-specific c++filt
-        if self.objdump_path and self.objdump_path != "objdump":
-            # Replace objdump with c++filt in the path
-            potential_cppfilt = self.objdump_path.replace("objdump", "c++filt")
-            _LOGGER.info("Checking for toolchain c++filt at: %s", potential_cppfilt)
-            if Path(potential_cppfilt).exists():
-                cppfilt_cmd = potential_cppfilt
-                _LOGGER.info("✓ Using toolchain c++filt: %s", cppfilt_cmd)
-            else:
-                _LOGGER.info(
-                    "✗ Toolchain c++filt not found at %s, using system c++filt",
-                    potential_cppfilt,
-                )
-        else:
-            _LOGGER.info("✗ Using system c++filt (objdump_path=%s)", self.objdump_path)
-
-        # Strip GCC optimization suffixes and prefixes before demangling
-        # Suffixes like $isra$0, $part$0, $constprop$0 confuse c++filt
-        # Prefixes like _GLOBAL__sub_I_ need to be removed and tracked
-        symbols_stripped: list[str] = []
-        symbols_prefixes: list[str] = []  # Track removed prefixes
-        for symbol in symbols:
-            # Remove GCC optimization markers
-            stripped = _GCC_OPTIMIZATION_SUFFIX_PATTERN.sub("", symbol)
-
-            # Handle GCC global constructor/initializer prefixes
-            # _GLOBAL__sub_I_<mangled> -> extract <mangled> for demangling
-            prefix = ""
-            for gcc_prefix in _GCC_PREFIX_ANNOTATIONS:
-                if stripped.startswith(gcc_prefix):
-                    prefix = gcc_prefix
-                    stripped = stripped[len(prefix) :]
-                    break
-
-            symbols_stripped.append(stripped)
-            symbols_prefixes.append(prefix)
-
-        try:
-            # Send all symbols to c++filt at once
-            result = subprocess.run(
-                [cppfilt_cmd],
-                input="\n".join(symbols_stripped),
-                capture_output=True,
-                text=True,
-                check=False,
-            )
-        except (subprocess.SubprocessError, OSError, UnicodeDecodeError) as e:
-            # On error, cache originals
-            _LOGGER.warning("Failed to batch demangle symbols: %s", e)
-            for symbol in symbols:
-                self._demangle_cache[symbol] = symbol
-            return
-
-        if result.returncode != 0:
-            _LOGGER.warning(
-                "c++filt exited with code %d: %s",
-                result.returncode,
-                result.stderr[:200] if result.stderr else "(no error output)",
-            )
-            # Cache originals on failure
-            for symbol in symbols:
-                self._demangle_cache[symbol] = symbol
-            return
-
-        # Process demangled output
-        self._process_demangled_output(
-            symbols, symbols_stripped, symbols_prefixes, result.stdout, cppfilt_cmd
-        )
-
-    def _process_demangled_output(
-        self,
-        symbols: list[str],
-        symbols_stripped: list[str],
-        symbols_prefixes: list[str],
-        demangled_output: str,
-        cppfilt_cmd: str,
-    ) -> None:
-        """Process demangled symbol output and populate cache.
-
-        Args:
-            symbols: Original symbol names
-            symbols_stripped: Stripped symbol names sent to c++filt
-            symbols_prefixes: Removed prefixes to restore
-            demangled_output: Output from c++filt
-            cppfilt_cmd: Path to c++filt command (for logging)
-        """
-        demangled_lines = demangled_output.strip().split("\n")
-        failed_count = 0
-
-        for original, stripped, prefix, demangled in zip(
-            symbols, symbols_stripped, symbols_prefixes, demangled_lines
-        ):
-            # Add back any prefix that was removed
-            demangled = self._restore_symbol_prefix(prefix, stripped, demangled)
-
-            # If we stripped a suffix, add it back to the demangled name for clarity
-            if original != stripped and not prefix:
-                demangled = self._restore_symbol_suffix(original, demangled)
-
-            self._demangle_cache[original] = demangled
-
-            # Log symbols that failed to demangle (stayed the same as stripped version)
-            if stripped == demangled and stripped.startswith("_Z"):
-                failed_count += 1
-                if failed_count <= 5:  # Only log first 5 failures
-                    _LOGGER.warning("Failed to demangle: %s", original)
-
-        if failed_count == 0:
-            _LOGGER.info("Successfully demangled all %d symbols", len(symbols))
-            return
-
-        _LOGGER.warning(
-            "Failed to demangle %d/%d symbols using %s",
-            failed_count,
-            len(symbols),
-            cppfilt_cmd,
-        )
-
-    @staticmethod
-    def _restore_symbol_prefix(prefix: str, stripped: str, demangled: str) -> str:
-        """Restore prefix that was removed before demangling.
-
-        Args:
-            prefix: Prefix that was removed (e.g., "_GLOBAL__sub_I_")
-            stripped: Stripped symbol name
-            demangled: Demangled symbol name
-
-        Returns:
-            Demangled name with prefix restored/annotated
-        """
-        if not prefix:
-            return demangled
-
-        # Successfully demangled - add descriptive prefix
-        if demangled != stripped and (
-            annotation := _GCC_PREFIX_ANNOTATIONS.get(prefix)
-        ):
-            return f"[{annotation}: {demangled}]"
-
-        # Failed to demangle - restore original prefix
-        return prefix + demangled
-
-    @staticmethod
-    def _restore_symbol_suffix(original: str, demangled: str) -> str:
-        """Restore GCC optimization suffix that was removed before demangling.
-
-        Args:
-            original: Original symbol name with suffix
-            demangled: Demangled symbol name without suffix
-
-        Returns:
-            Demangled name with suffix annotation
-        """
-        if suffix_match := _GCC_OPTIMIZATION_SUFFIX_PATTERN.search(original):
-            return f"{demangled} [{suffix_match.group(1)}]"
-        return demangled
+        self._demangle_cache = batch_demangle(symbols, objdump_path=self.objdump_path)
+        _LOGGER.info("Successfully demangled %d symbols", len(self._demangle_cache))
 
     def _demangle_symbol(self, symbol: str) -> str:
         """Get demangled C++ symbol name from cache."""

esphome/analyze_memory/demangle.py

@@ -0,0 +1,182 @@
+"""Symbol demangling utilities for memory analysis.
+
+This module provides functions for demangling C++ symbol names using c++filt.
+"""
+
+from __future__ import annotations
+
+import logging
+import re
+import subprocess
+
+from .toolchain import find_tool
+
+_LOGGER = logging.getLogger(__name__)
+
+# GCC global constructor/destructor prefix annotations
+GCC_PREFIX_ANNOTATIONS = {
+    "_GLOBAL__sub_I_": "global constructor for",
+    "_GLOBAL__sub_D_": "global destructor for",
+}
+
+# GCC optimization suffix pattern (e.g., $isra$0, $part$1, $constprop$2)
+GCC_OPTIMIZATION_SUFFIX_PATTERN = re.compile(r"(\$(?:isra|part|constprop)\$\d+)")
+
+
+def _strip_gcc_annotations(symbol: str) -> tuple[str, str]:
+    """Strip GCC optimization suffixes and prefixes from a symbol.
+
+    Args:
+        symbol: The mangled symbol name
+
+    Returns:
+        Tuple of (stripped_symbol, removed_prefix)
+    """
+    # Remove GCC optimization markers
+    stripped = GCC_OPTIMIZATION_SUFFIX_PATTERN.sub("", symbol)
+
+    # Handle GCC global constructor/initializer prefixes
+    prefix = ""
+    for gcc_prefix in GCC_PREFIX_ANNOTATIONS:
+        if stripped.startswith(gcc_prefix):
+            prefix = gcc_prefix
+            stripped = stripped[len(prefix) :]
+            break
+
+    return stripped, prefix
+
+
+def _restore_symbol_prefix(prefix: str, stripped: str, demangled: str) -> str:
+    """Restore prefix that was removed before demangling.
+
+    Args:
+        prefix: Prefix that was removed (e.g., "_GLOBAL__sub_I_")
+        stripped: Stripped symbol name
+        demangled: Demangled symbol name
+
+    Returns:
+        Demangled name with prefix restored/annotated
+    """
+    if not prefix:
+        return demangled
+
+    # Successfully demangled - add descriptive prefix
+    if demangled != stripped and (annotation := GCC_PREFIX_ANNOTATIONS.get(prefix)):
+        return f"[{annotation}: {demangled}]"
+
+    # Failed to demangle - restore original prefix
+    return prefix + demangled
+
+
+def _restore_symbol_suffix(original: str, demangled: str) -> str:
+    """Restore GCC optimization suffix that was removed before demangling.
+
+    Args:
+        original: Original symbol name with suffix
+        demangled: Demangled symbol name without suffix
+
+    Returns:
+        Demangled name with suffix annotation
+    """
+    if suffix_match := GCC_OPTIMIZATION_SUFFIX_PATTERN.search(original):
+        return f"{demangled} [{suffix_match.group(1)}]"
+    return demangled
+
+
+def batch_demangle(
+    symbols: list[str],
+    cppfilt_path: str | None = None,
+    objdump_path: str | None = None,
+) -> dict[str, str]:
+    """Batch demangle C++ symbol names.
+
+    Args:
+        symbols: List of symbol names to demangle
+        cppfilt_path: Path to c++filt binary (auto-detected if not provided)
+        objdump_path: Path to objdump binary to derive c++filt path from
+
+    Returns:
+        Dictionary mapping original symbol names to demangled names
+    """
+    cache: dict[str, str] = {}
+
+    if not symbols:
+        return cache
+
+    # Find c++filt tool
+    cppfilt_cmd = cppfilt_path or find_tool("c++filt", objdump_path)
+    if not cppfilt_cmd:
+        _LOGGER.warning("Could not find c++filt, symbols will not be demangled")
+        return {s: s for s in symbols}
+
+    _LOGGER.debug("Demangling %d symbols using %s", len(symbols), cppfilt_cmd)
+
+    # Strip GCC optimization suffixes and prefixes before demangling
+    symbols_stripped: list[str] = []
+    symbols_prefixes: list[str] = []
+    for symbol in symbols:
+        stripped, prefix = _strip_gcc_annotations(symbol)
+        symbols_stripped.append(stripped)
+        symbols_prefixes.append(prefix)
+
+    try:
+        result = subprocess.run(
+            [cppfilt_cmd],
+            input="\n".join(symbols_stripped),
+            capture_output=True,
+            text=True,
+            check=False,
+        )
+    except (subprocess.SubprocessError, OSError, UnicodeDecodeError) as e:
+        _LOGGER.warning("Failed to batch demangle symbols: %s", e)
+        return {s: s for s in symbols}
+
+    if result.returncode != 0:
+        _LOGGER.warning(
+            "c++filt exited with code %d: %s",
+            result.returncode,
+            result.stderr[:200] if result.stderr else "(no error output)",
+        )
+        return {s: s for s in symbols}
+
+    # Process demangled output
+    demangled_lines = result.stdout.strip().split("\n")
+
+    # Check for output length mismatch
+    if len(demangled_lines) != len(symbols):
+        _LOGGER.warning(
+            "c++filt output mismatch: expected %d lines, got %d",
+            len(symbols),
+            len(demangled_lines),
+        )
+        return {s: s for s in symbols}
+
+    failed_count = 0
+
+    for original, stripped, prefix, demangled in zip(
+        symbols, symbols_stripped, symbols_prefixes, demangled_lines
+    ):
+        # Add back any prefix that was removed
+        demangled = _restore_symbol_prefix(prefix, stripped, demangled)
+
+        # If we stripped a suffix, add it back to the demangled name for clarity
+        if original != stripped and not prefix:
+            demangled = _restore_symbol_suffix(original, demangled)
+
+        cache[original] = demangled
+
+        # Count symbols that failed to demangle
+        if stripped == demangled and stripped.startswith("_Z"):
+            failed_count += 1
+            if failed_count <= 5:
+                _LOGGER.debug("Failed to demangle: %s", original)
+
+    if failed_count > 0:
+        _LOGGER.debug(
+            "Failed to demangle %d/%d symbols using %s",
+            failed_count,
+            len(symbols),
+            cppfilt_cmd,
+        )
+
+    return cache

esphome/analyze_memory/ram_strings.py

@@ -0,0 +1,493 @@
+"""Analyzer for RAM-stored strings in ESP8266/ESP32 firmware ELF files.
+
+This module identifies strings that are stored in RAM sections (.data, .bss, .rodata)
+rather than in flash sections (.irom0.text, .irom.text), which is important for
+memory-constrained platforms like ESP8266.
+"""
+
+from __future__ import annotations
+
+from collections import defaultdict
+from dataclasses import dataclass
+import logging
+from pathlib import Path
+import re
+import subprocess
+
+from .demangle import batch_demangle
+from .toolchain import find_tool
+
+_LOGGER = logging.getLogger(__name__)
+
+# ESP8266: .rodata is in RAM (DRAM), not flash
+# ESP32: .rodata is in flash, mapped to data bus
+ESP8266_RAM_SECTIONS = frozenset([".data", ".rodata", ".bss"])
+ESP8266_FLASH_SECTIONS = frozenset([".irom0.text", ".irom.text", ".text"])
+
+# ESP32: .rodata is memory-mapped from flash
+ESP32_RAM_SECTIONS = frozenset([".data", ".bss", ".dram0.data", ".dram0.bss"])
+ESP32_FLASH_SECTIONS = frozenset([".text", ".rodata", ".flash.text", ".flash.rodata"])
+
+# nm symbol types for data symbols (D=global data, d=local data, R=rodata, B=bss)
+DATA_SYMBOL_TYPES = frozenset(["D", "d", "R", "r", "B", "b"])
+
+
+@dataclass
+class SectionInfo:
+    """Information about an ELF section."""
+
+    name: str
+    address: int
+    size: int
+
+
+@dataclass
+class RamString:
+    """A string found in RAM."""
+
+    section: str
+    address: int
+    content: str
+
+    @property
+    def size(self) -> int:
+        """Size in bytes including null terminator."""
+        return len(self.content) + 1
+
+
+@dataclass
+class RamSymbol:
+    """A symbol found in RAM."""
+
+    name: str
+    sym_type: str
+    address: int
+    size: int
+    section: str
+    demangled: str = ""  # Demangled name, set after batch demangling
+
+
+class RamStringsAnalyzer:
+    """Analyzes ELF files to find strings stored in RAM."""
+
+    def __init__(
+        self,
+        elf_path: str,
+        objdump_path: str | None = None,
+        min_length: int = 8,
+        platform: str = "esp32",
+    ) -> None:
+        """Initialize the RAM strings analyzer.
+
+        Args:
+            elf_path: Path to the ELF file to analyze
+            objdump_path: Path to objdump binary (used to find other tools)
+            min_length: Minimum string length to report (default: 8)
+            platform: Platform name ("esp8266", "esp32", etc.) for section mapping
+        """
+        self.elf_path = Path(elf_path)
+        if not self.elf_path.exists():
+            raise FileNotFoundError(f"ELF file not found: {elf_path}")
+
+        self.objdump_path = objdump_path
+        self.min_length = min_length
+        self.platform = platform
+
+        # Set RAM/flash sections based on platform
+        if self.platform == "esp8266":
+            self.ram_sections = ESP8266_RAM_SECTIONS
+            self.flash_sections = ESP8266_FLASH_SECTIONS
+        else:
+            # ESP32 and other platforms
+            self.ram_sections = ESP32_RAM_SECTIONS
+            self.flash_sections = ESP32_FLASH_SECTIONS
+
+        self.sections: dict[str, SectionInfo] = {}
+        self.ram_strings: list[RamString] = []
+        self.ram_symbols: list[RamSymbol] = []
+
+    def _run_command(self, cmd: list[str]) -> str:
+        """Run a command and return its output."""
+        try:
+            result = subprocess.run(cmd, capture_output=True, text=True, check=True)
+            return result.stdout
+        except subprocess.CalledProcessError as e:
+            _LOGGER.debug("Command failed: %s - %s", " ".join(cmd), e.stderr)
+            raise
+        except FileNotFoundError:
+            _LOGGER.warning("Command not found: %s", cmd[0])
+            raise
+
+    def analyze(self) -> None:
+        """Perform the full RAM analysis."""
+        self._parse_sections()
+        self._extract_strings()
+        self._analyze_symbols()
+        self._demangle_symbols()
+
+    def _parse_sections(self) -> None:
+        """Parse section headers from ELF file."""
+        objdump = find_tool("objdump", self.objdump_path)
+        if not objdump:
+            _LOGGER.error("Could not find objdump command")
+            return
+
+        try:
+            output = self._run_command([objdump, "-h", str(self.elf_path)])
+        except (subprocess.CalledProcessError, FileNotFoundError):
+            return
+
+        # Parse section headers
+        # Format: Idx Name          Size      VMA       LMA       File off  Algn
+        section_pattern = re.compile(
+            r"^\s*\d+\s+(\S+)\s+([0-9a-fA-F]+)\s+([0-9a-fA-F]+)"
+        )
+
+        for line in output.split("\n"):
+            if match := section_pattern.match(line):
+                name = match.group(1)
+                size = int(match.group(2), 16)
+                vma = int(match.group(3), 16)
+                self.sections[name] = SectionInfo(name, vma, size)
+
+    def _extract_strings(self) -> None:
+        """Extract strings from RAM sections."""
+        objdump = find_tool("objdump", self.objdump_path)
+        if not objdump:
+            return
+
+        for section_name in self.ram_sections:
+            if section_name not in self.sections:
+                continue
+
+            try:
+                output = self._run_command(
+                    [objdump, "-s", "-j", section_name, str(self.elf_path)]
+                )
+            except subprocess.CalledProcessError:
+                # Section may exist but have no content (e.g., .bss)
+                continue
+            except FileNotFoundError:
+                continue
+
+            strings = self._parse_hex_dump(output, section_name)
+            self.ram_strings.extend(strings)
+
+    def _parse_hex_dump(self, output: str, section_name: str) -> list[RamString]:
+        """Parse hex dump output to extract strings.
+
+        Args:
+            output: Output from objdump -s
+            section_name: Name of the section being parsed
+
+        Returns:
+            List of RamString objects
+        """
+        strings: list[RamString] = []
+        current_string = bytearray()
+        string_start_addr = 0
+
+        for line in output.split("\n"):
+            # Lines look like: " 3ffef8a0 00000000 00000000 00000000 00000000  ................"
+            match = re.match(r"^\s+([0-9a-fA-F]+)\s+((?:[0-9a-fA-F]{2,8}\s*)+)", line)
+            if not match:
+                continue
+
+            addr = int(match.group(1), 16)
+            hex_data = match.group(2).strip()
+
+            # Convert hex to bytes
+            hex_bytes = hex_data.split()
+            byte_offset = 0
+            for hex_chunk in hex_bytes:
+                # Handle both byte-by-byte and word formats
+                for i in range(0, len(hex_chunk), 2):
+                    byte_val = int(hex_chunk[i : i + 2], 16)
+                    if 0x20 <= byte_val <= 0x7E:  # Printable ASCII
+                        if not current_string:
+                            string_start_addr = addr + byte_offset
+                        current_string.append(byte_val)
+                    else:
+                        if byte_val == 0 and len(current_string) >= self.min_length:
+                            # Found null terminator
+                            strings.append(
+                                RamString(
+                                    section=section_name,
+                                    address=string_start_addr,
+                                    content=current_string.decode(
+                                        "ascii", errors="ignore"
+                                    ),
+                                )
+                            )
+                        current_string = bytearray()
+                    byte_offset += 1
+
+        return strings
+
+    def _analyze_symbols(self) -> None:
+        """Analyze symbols in RAM sections."""
+        nm = find_tool("nm", self.objdump_path)
+        if not nm:
+            return
+
+        try:
+            output = self._run_command([nm, "-S", "--size-sort", str(self.elf_path)])
+        except (subprocess.CalledProcessError, FileNotFoundError):
+            return
+
+        for line in output.split("\n"):
+            parts = line.split()
+            if len(parts) < 4:
+                continue
+
+            try:
+                addr = int(parts[0], 16)
+                size = int(parts[1], 16) if parts[1] != "?" else 0
+            except ValueError:
+                continue
+
+            sym_type = parts[2]
+            name = " ".join(parts[3:])
+
+            # Filter for data symbols
+            if sym_type not in DATA_SYMBOL_TYPES:
+                continue
+
+            # Check if symbol is in a RAM section
+            for section_name in self.ram_sections:
+                if section_name not in self.sections:
+                    continue
+
+                section = self.sections[section_name]
+                if section.address <= addr < section.address + section.size:
+                    self.ram_symbols.append(
+                        RamSymbol(
+                            name=name,
+                            sym_type=sym_type,
+                            address=addr,
+                            size=size,
+                            section=section_name,
+                        )
+                    )
+                    break
+
+    def _demangle_symbols(self) -> None:
+        """Batch demangle all RAM symbol names."""
+        if not self.ram_symbols:
+            return
+
+        # Collect all symbol names and demangle them
+        symbol_names = [s.name for s in self.ram_symbols]
+        demangle_cache = batch_demangle(symbol_names, objdump_path=self.objdump_path)
+
+        # Assign demangled names to symbols
+        for symbol in self.ram_symbols:
+            symbol.demangled = demangle_cache.get(symbol.name, symbol.name)
+
+    def _get_sections_size(self, section_names: frozenset[str]) -> int:
+        """Get total size of specified sections."""
+        return sum(
+            section.size
+            for name, section in self.sections.items()
+            if name in section_names
+        )
+
+    def get_total_ram_usage(self) -> int:
+        """Get total RAM usage from RAM sections."""
+        return self._get_sections_size(self.ram_sections)
+
+    def get_total_flash_usage(self) -> int:
+        """Get total flash usage from flash sections."""
+        return self._get_sections_size(self.flash_sections)
+
+    def get_total_string_bytes(self) -> int:
+        """Get total bytes used by strings in RAM."""
+        return sum(s.size for s in self.ram_strings)
+
+    def get_repeated_strings(self) -> list[tuple[str, int]]:
+        """Find strings that appear multiple times.
+
+        Returns:
+            List of (string, count) tuples sorted by potential savings
+        """
+        string_counts: dict[str, int] = defaultdict(int)
+        for ram_string in self.ram_strings:
+            string_counts[ram_string.content] += 1
+
+        return sorted(
+            [(s, c) for s, c in string_counts.items() if c > 1],
+            key=lambda x: x[1] * (len(x[0]) + 1),
+            reverse=True,
+        )
+
+    def get_long_strings(self, min_len: int = 20) -> list[RamString]:
+        """Get strings longer than the specified length.
+
+        Args:
+            min_len: Minimum string length
+
+        Returns:
+            List of RamString objects sorted by length
+        """
+        return sorted(
+            [s for s in self.ram_strings if len(s.content) >= min_len],
+            key=lambda x: len(x.content),
+            reverse=True,
+        )
+
+    def get_largest_symbols(self, min_size: int = 100) -> list[RamSymbol]:
+        """Get RAM symbols larger than the specified size.
+
+        Args:
+            min_size: Minimum symbol size in bytes
+
+        Returns:
+            List of RamSymbol objects sorted by size
+        """
+        return sorted(
+            [s for s in self.ram_symbols if s.size >= min_size],
+            key=lambda x: x.size,
+            reverse=True,
+        )
+
+    def generate_report(self, show_all_sections: bool = False) -> str:
+        """Generate a formatted RAM strings analysis report.
+
+        Args:
+            show_all_sections: If True, show all sections, not just RAM
+
+        Returns:
+            Formatted report string
+        """
+        lines: list[str] = []
+        table_width = 80
+
+        lines.append("=" * table_width)
+        lines.append(
+            f"RAM Strings Analysis ({self.platform.upper()})".center(table_width)
+        )
+        lines.append("=" * table_width)
+        lines.append("")
+
+        # Section Analysis
+        lines.append("SECTION ANALYSIS")
+        lines.append("-" * table_width)
+        lines.append(f"{'Section':<20} {'Address':<12} {'Size':<12} {'Location'}")
+        lines.append("-" * table_width)
+
+        total_ram_usage = 0
+        total_flash_usage = 0
+
+        for name, section in sorted(self.sections.items(), key=lambda x: x[1].address):
+            if name in self.ram_sections:
+                location = "RAM"
+                total_ram_usage += section.size
+            elif name in self.flash_sections:
+                location = "FLASH"
+                total_flash_usage += section.size
+            else:
+                location = "OTHER"
+
+            if show_all_sections or name in self.ram_sections:
+                lines.append(
+                    f"{name:<20} 0x{section.address:08x}   {section.size:>8} B   {location}"
+                )
+
+        lines.append("-" * table_width)
+        lines.append(f"Total RAM sections size: {total_ram_usage:,} bytes")
+        lines.append(f"Total Flash sections size: {total_flash_usage:,} bytes")
+
+        # Strings in RAM
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("STRINGS IN RAM SECTIONS")
+        lines.append("=" * table_width)
+        lines.append(
+            "Note: .bss sections contain uninitialized data (no strings to extract)"
+        )
+
+        # Group strings by section
+        strings_by_section: dict[str, list[RamString]] = defaultdict(list)
+        for ram_string in self.ram_strings:
+            strings_by_section[ram_string.section].append(ram_string)
+
+        for section_name in sorted(strings_by_section.keys()):
+            section_strings = strings_by_section[section_name]
+            lines.append(f"\nSection: {section_name}")
+            lines.append("-" * 40)
+            for ram_string in sorted(section_strings, key=lambda x: x.address):
+                clean_string = ram_string.content[:100] + (
+                    "..." if len(ram_string.content) > 100 else ""
+                )
+                lines.append(
+                    f'  0x{ram_string.address:08x}: "{clean_string}" (len={len(ram_string.content)})'
+                )
+
+        # Large RAM symbols
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("LARGE DATA SYMBOLS IN RAM (>= 50 bytes)")
+        lines.append("=" * table_width)
+
+        largest_symbols = self.get_largest_symbols(50)
+        lines.append(f"\n{'Symbol':<50} {'Type':<6} {'Size':<10} {'Section'}")
+        lines.append("-" * table_width)
+
+        for symbol in largest_symbols:
+            # Use demangled name if available, otherwise raw name
+            display_name = symbol.demangled or symbol.name
+            name_display = display_name[:49] if len(display_name) > 49 else display_name
+            lines.append(
+                f"{name_display:<50} {symbol.sym_type:<6} {symbol.size:>8} B  {symbol.section}"
+            )
+
+        # Summary
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("SUMMARY")
+        lines.append("=" * table_width)
+        lines.append(f"Total strings found in RAM: {len(self.ram_strings)}")
+        total_string_bytes = self.get_total_string_bytes()
+        lines.append(f"Total bytes used by strings: {total_string_bytes:,}")
+
+        # Optimization targets
+        lines.append("")
+        lines.append("=" * table_width)
+        lines.append("POTENTIAL OPTIMIZATION TARGETS")
+        lines.append("=" * table_width)
+
+        # Repeated strings
+        repeated = self.get_repeated_strings()[:10]
+        if repeated:
+            lines.append("\nRepeated strings (could be deduplicated):")
+            for string, count in repeated:
+                savings = (count - 1) * (len(string) + 1)
+                clean_string = string[:50] + ("..." if len(string) > 50 else "")
+                lines.append(
+                    f'  "{clean_string}" - appears {count} times (potential savings: {savings} bytes)'
+                )
+
+        # Long strings - platform-specific advice
+        long_strings = self.get_long_strings(20)[:10]
+        if long_strings:
+            if self.platform == "esp8266":
+                lines.append(
+                    "\nLong strings that could be moved to PROGMEM (>= 20 chars):"
+                )
+            else:
+                # ESP32: strings in DRAM are typically there for a reason
+                # (interrupt handlers, pre-flash-init code, etc.)
+                lines.append("\nLong strings in DRAM (>= 20 chars):")
+                lines.append(
+                    "Note: ESP32 DRAM strings may be required for interrupt/early-boot contexts"
+                )
+            for ram_string in long_strings:
+                clean_string = ram_string.content[:60] + (
+                    "..." if len(ram_string.content) > 60 else ""
+                )
+                lines.append(
+                    f'  {ram_string.section} @ 0x{ram_string.address:08x}: "{clean_string}" ({len(ram_string.content)} bytes)'
+                )
+
+        lines.append("")
+        return "\n".join(lines)

esphome/analyze_memory/toolchain.py

@@ -0,0 +1,57 @@
+"""Toolchain utilities for memory analysis."""
+
+from __future__ import annotations
+
+import logging
+from pathlib import Path
+import subprocess
+
+_LOGGER = logging.getLogger(__name__)
+
+# Platform-specific toolchain prefixes
+TOOLCHAIN_PREFIXES = [
+    "xtensa-lx106-elf-",  # ESP8266
+    "xtensa-esp32-elf-",  # ESP32
+    "xtensa-esp-elf-",  # ESP32 (newer IDF)
+    "",  # System default (no prefix)
+]
+
+
+def find_tool(
+    tool_name: str,
+    objdump_path: str | None = None,
+) -> str | None:
+    """Find a toolchain tool by name.
+
+    First tries to derive the tool path from objdump_path (if provided),
+    then falls back to searching for platform-specific tools.
+
+    Args:
+        tool_name: Name of the tool (e.g., "objdump", "nm", "c++filt")
+        objdump_path: Path to objdump binary to derive other tool paths from
+
+    Returns:
+        Path to the tool or None if not found
+    """
+    # Try to derive from objdump path first (most reliable)
+    if objdump_path and objdump_path != "objdump":
+        objdump_file = Path(objdump_path)
+        # Replace just the filename portion, preserving any prefix (e.g., xtensa-esp32-elf-)
+        new_name = objdump_file.name.replace("objdump", tool_name)
+        potential_path = str(objdump_file.with_name(new_name))
+        if Path(potential_path).exists():
+            _LOGGER.debug("Found %s at: %s", tool_name, potential_path)
+            return potential_path
+
+    # Try platform-specific tools
+    for prefix in TOOLCHAIN_PREFIXES:
+        cmd = f"{prefix}{tool_name}"
+        try:
+            subprocess.run([cmd, "--version"], capture_output=True, check=True)
+            _LOGGER.debug("Found %s: %s", tool_name, cmd)
+            return cmd
+        except (subprocess.CalledProcessError, FileNotFoundError):
+            continue
+
+    _LOGGER.warning("Could not find %s tool", tool_name)
+    return None

esphome/components/absolute_humidity/absolute_humidity.cpp

@@ -87,7 +87,7 @@ void AbsoluteHumidityComponent::loop() {
       break;
     default:
       this->publish_state(NAN);
-      this->status_set_error("Invalid saturation vapor pressure equation selection!");
+      this->status_set_error(LOG_STR("Invalid saturation vapor pressure equation selection!"));
       return;
   }
   ESP_LOGD(TAG, "Saturation vapor pressure %f kPa", es);
@@ -163,7 +163,7 @@ float AbsoluteHumidityComponent::es_wobus(float t) {
 }
 
 // From https://www.environmentalbiophysics.org/chalk-talk-how-to-calculate-absolute-humidity/
-// H/T to https://esphome.io/cookbook/bme280_environment.html
+// H/T to https://esphome.io/cookbook/bme280_environment/
 // H/T to https://carnotcycle.wordpress.com/2012/08/04/how-to-convert-relative-humidity-to-absolute-humidity/
 float AbsoluteHumidityComponent::vapor_density(float es, float hr, float ta) {
   // es = saturated vapor pressure (kPa)

esphome/components/adc/__init__.py

@@ -1,15 +1,17 @@
 from esphome import pins
 import esphome.codegen as cg
-from esphome.components.esp32 import VARIANT_ESP32P4, get_esp32_variant
-from esphome.components.esp32.const import (
+from esphome.components.esp32 import (
     VARIANT_ESP32,
     VARIANT_ESP32C2,
     VARIANT_ESP32C3,
     VARIANT_ESP32C5,
     VARIANT_ESP32C6,
+    VARIANT_ESP32C61,
     VARIANT_ESP32H2,
+    VARIANT_ESP32P4,
     VARIANT_ESP32S2,
     VARIANT_ESP32S3,
+    get_esp32_variant,
 )
 import esphome.config_validation as cv
 from esphome.const import CONF_ANALOG, CONF_INPUT, CONF_NUMBER, PLATFORM_ESP8266
@@ -99,6 +101,13 @@ ESP32_VARIANT_ADC1_PIN_TO_CHANNEL = {
         5: adc_channel_t.ADC_CHANNEL_5,
         6: adc_channel_t.ADC_CHANNEL_6,
     },
+    # https://docs.espressif.com/projects/esp-idf/en/latest/esp32c61/api-reference/peripherals/gpio.html
+    VARIANT_ESP32C61: {
+        1: adc_channel_t.ADC_CHANNEL_0,
+        3: adc_channel_t.ADC_CHANNEL_1,
+        4: adc_channel_t.ADC_CHANNEL_2,
+        5: adc_channel_t.ADC_CHANNEL_3,
+    },
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32h2/include/soc/adc_channel.h
     VARIANT_ESP32H2: {
         1: adc_channel_t.ADC_CHANNEL_0,
@@ -107,6 +116,17 @@ ESP32_VARIANT_ADC1_PIN_TO_CHANNEL = {
         4: adc_channel_t.ADC_CHANNEL_3,
         5: adc_channel_t.ADC_CHANNEL_4,
     },
+    # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32p4/include/soc/adc_channel.h
+    VARIANT_ESP32P4: {
+        16: adc_channel_t.ADC_CHANNEL_0,
+        17: adc_channel_t.ADC_CHANNEL_1,
+        18: adc_channel_t.ADC_CHANNEL_2,
+        19: adc_channel_t.ADC_CHANNEL_3,
+        20: adc_channel_t.ADC_CHANNEL_4,
+        21: adc_channel_t.ADC_CHANNEL_5,
+        22: adc_channel_t.ADC_CHANNEL_6,
+        23: adc_channel_t.ADC_CHANNEL_7,
+    },
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32s2/include/soc/adc_channel.h
     VARIANT_ESP32S2: {
         1: adc_channel_t.ADC_CHANNEL_0,
@@ -133,16 +153,6 @@ ESP32_VARIANT_ADC1_PIN_TO_CHANNEL = {
         9: adc_channel_t.ADC_CHANNEL_8,
         10: adc_channel_t.ADC_CHANNEL_9,
     },
-    VARIANT_ESP32P4: {
-        16: adc_channel_t.ADC_CHANNEL_0,
-        17: adc_channel_t.ADC_CHANNEL_1,
-        18: adc_channel_t.ADC_CHANNEL_2,
-        19: adc_channel_t.ADC_CHANNEL_3,
-        20: adc_channel_t.ADC_CHANNEL_4,
-        21: adc_channel_t.ADC_CHANNEL_5,
-        22: adc_channel_t.ADC_CHANNEL_6,
-        23: adc_channel_t.ADC_CHANNEL_7,
-    },
 }
 
 # pin to adc2 channel mapping
@@ -173,8 +183,19 @@ ESP32_VARIANT_ADC2_PIN_TO_CHANNEL = {
     VARIANT_ESP32C5: {},  # no ADC2
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32c6/include/soc/adc_channel.h
     VARIANT_ESP32C6: {},  # no ADC2
+    # ESP32-C61 has no ADC2
+    VARIANT_ESP32C61: {},  # no ADC2
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32h2/include/soc/adc_channel.h
     VARIANT_ESP32H2: {},  # no ADC2
+    # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32p4/include/soc/adc_channel.h
+    VARIANT_ESP32P4: {
+        49: adc_channel_t.ADC_CHANNEL_0,
+        50: adc_channel_t.ADC_CHANNEL_1,
+        51: adc_channel_t.ADC_CHANNEL_2,
+        52: adc_channel_t.ADC_CHANNEL_3,
+        53: adc_channel_t.ADC_CHANNEL_4,
+        54: adc_channel_t.ADC_CHANNEL_5,
+    },
     # https://github.com/espressif/esp-idf/blob/master/components/soc/esp32s2/include/soc/adc_channel.h
     VARIANT_ESP32S2: {
         11: adc_channel_t.ADC_CHANNEL_0,
@@ -201,14 +222,6 @@ ESP32_VARIANT_ADC2_PIN_TO_CHANNEL = {
         19: adc_channel_t.ADC_CHANNEL_8,
         20: adc_channel_t.ADC_CHANNEL_9,
     },
-    VARIANT_ESP32P4: {
-        49: adc_channel_t.ADC_CHANNEL_0,
-        50: adc_channel_t.ADC_CHANNEL_1,
-        51: adc_channel_t.ADC_CHANNEL_2,
-        52: adc_channel_t.ADC_CHANNEL_3,
-        53: adc_channel_t.ADC_CHANNEL_4,
-        54: adc_channel_t.ADC_CHANNEL_5,
-    },
 }
 
 

esphome/components/adc/adc_sensor_esp32.cpp

@@ -42,10 +42,11 @@ void ADCSensor::setup() {
     adc_oneshot_unit_init_cfg_t init_config = {};  // Zero initialize
     init_config.unit_id = this->adc_unit_;
     init_config.ulp_mode = ADC_ULP_MODE_DISABLE;
-#if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || USE_ESP32_VARIANT_ESP32H2
+#if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
     init_config.clk_src = ADC_DIGI_CLK_SRC_DEFAULT;
 #endif  // USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 ||
-        // USE_ESP32_VARIANT_ESP32H2
+        // USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
     esp_err_t err = adc_oneshot_new_unit(&init_config, &ADCSensor::shared_adc_handles[this->adc_unit_]);
     if (err != ESP_OK) {
       ESP_LOGE(TAG, "Error initializing %s: %d", LOG_STR_ARG(adc_unit_to_str(this->adc_unit_)), err);
@@ -74,7 +75,7 @@ void ADCSensor::setup() {
     adc_cali_handle_t handle = nullptr;
 
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
     // RISC-V variants and S3 use curve fitting calibration
     adc_cali_curve_fitting_config_t cali_config = {};  // Zero initialize first
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0)
@@ -111,7 +112,7 @@ void ADCSensor::setup() {
       ESP_LOGW(TAG, "Line fitting calibration failed with error %d, will use uncalibrated readings", err);
       this->setup_flags_.calibration_complete = false;
     }
-#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32S3 || ESP32H2
+#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
   }
 
   this->setup_flags_.init_complete = true;
@@ -186,11 +187,11 @@ float ADCSensor::sample_fixed_attenuation_() {
       ESP_LOGW(TAG, "ADC calibration conversion failed with error %d, disabling calibration", err);
       if (this->calibration_handle_ != nullptr) {
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
         adc_cali_delete_scheme_curve_fitting(this->calibration_handle_);
 #else   // Other ESP32 variants use line fitting calibration
         adc_cali_delete_scheme_line_fitting(this->calibration_handle_);
-#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32S3 || ESP32H2
+#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
         this->calibration_handle_ = nullptr;
       }
     }
@@ -219,7 +220,7 @@ float ADCSensor::sample_autorange_() {
     if (this->calibration_handle_ != nullptr) {
       // Delete old calibration handle
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
       adc_cali_delete_scheme_curve_fitting(this->calibration_handle_);
 #else
       adc_cali_delete_scheme_line_fitting(this->calibration_handle_);
@@ -231,7 +232,7 @@ float ADCSensor::sample_autorange_() {
     adc_cali_handle_t handle = nullptr;
 
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
     adc_cali_curve_fitting_config_t cali_config = {};
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0)
     cali_config.chan = this->channel_;
@@ -266,7 +267,7 @@ float ADCSensor::sample_autorange_() {
       ESP_LOGW(TAG, "ADC read failed in autorange with error %d", err);
       if (handle != nullptr) {
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
         adc_cali_delete_scheme_curve_fitting(handle);
 #else
         adc_cali_delete_scheme_line_fitting(handle);
@@ -288,7 +289,7 @@ float ADCSensor::sample_autorange_() {
       }
       // Clean up calibration handle
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
-    USE_ESP32_VARIANT_ESP32S3 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
       adc_cali_delete_scheme_curve_fitting(handle);
 #else
       adc_cali_delete_scheme_line_fitting(handle);

esphome/components/ade7880/sensor.py

@@ -227,7 +227,7 @@ CONFIG_SCHEMA = cv.All(
         {
             cv.GenerateID(): cv.declare_id(ADE7880),
             cv.Optional(CONF_FREQUENCY, default="50Hz"): cv.All(
-                cv.frequency, cv.Range(min=45.0, max=66.0)
+                cv.frequency, cv.float_range(min=45.0, max=66.0)
             ),
             cv.Optional(CONF_IRQ0_PIN): pins.internal_gpio_input_pin_schema,
             cv.Required(CONF_IRQ1_PIN): pins.internal_gpio_input_pin_schema,

esphome/components/ade7953_base/__init__.py

@@ -24,6 +24,8 @@ from esphome.const import (
     UNIT_WATT,
 )
 
+CODEOWNERS = ["@angelnu"]
+
 CONF_CURRENT_A = "current_a"
 CONF_CURRENT_B = "current_b"
 CONF_ACTIVE_POWER_A = "active_power_a"

esphome/components/ade7953_base/ade7953_base.cpp

@@ -25,7 +25,8 @@ void ADE7953::setup() {
     this->ade_write_8(PGA_V_8, pga_v_);
     this->ade_write_8(PGA_IA_8, pga_ia_);
     this->ade_write_8(PGA_IB_8, pga_ib_);
-    this->ade_write_32(AVGAIN_32, vgain_);
+    this->ade_write_32(AVGAIN_32, avgain_);
+    this->ade_write_32(BVGAIN_32, bvgain_);
     this->ade_write_32(AIGAIN_32, aigain_);
     this->ade_write_32(BIGAIN_32, bigain_);
     this->ade_write_32(AWGAIN_32, awgain_);
@@ -34,7 +35,8 @@ void ADE7953::setup() {
     this->ade_read_8(PGA_V_8, &pga_v_);
     this->ade_read_8(PGA_IA_8, &pga_ia_);
     this->ade_read_8(PGA_IB_8, &pga_ib_);
-    this->ade_read_32(AVGAIN_32, &vgain_);
+    this->ade_read_32(AVGAIN_32, &avgain_);
+    this->ade_read_32(BVGAIN_32, &bvgain_);
     this->ade_read_32(AIGAIN_32, &aigain_);
     this->ade_read_32(BIGAIN_32, &bigain_);
     this->ade_read_32(AWGAIN_32, &awgain_);
@@ -63,13 +65,14 @@ void ADE7953::dump_config() {
                 "  PGA_V_8: 0x%X\n"
                 "  PGA_IA_8: 0x%X\n"
                 "  PGA_IB_8: 0x%X\n"
-                "  VGAIN_32: 0x%08jX\n"
+                "  AVGAIN_32: 0x%08jX\n"
+                "  BVGAIN_32: 0x%08jX\n"
                 "  AIGAIN_32: 0x%08jX\n"
                 "  BIGAIN_32: 0x%08jX\n"
                 "  AWGAIN_32: 0x%08jX\n"
                 "  BWGAIN_32: 0x%08jX",
-                this->use_acc_energy_regs_, pga_v_, pga_ia_, pga_ib_, (uintmax_t) vgain_, (uintmax_t) aigain_,
-                (uintmax_t) bigain_, (uintmax_t) awgain_, (uintmax_t) bwgain_);
+                this->use_acc_energy_regs_, pga_v_, pga_ia_, pga_ib_, (uintmax_t) avgain_, (uintmax_t) bvgain_,
+                (uintmax_t) aigain_, (uintmax_t) bigain_, (uintmax_t) awgain_, (uintmax_t) bwgain_);
 }
 
 #define ADE_PUBLISH_(name, val, factor) \

esphome/components/ade7953_base/ade7953_base.h

@@ -46,7 +46,12 @@ class ADE7953 : public PollingComponent, public sensor::Sensor {
   void set_pga_ib(uint8_t pga_ib) { pga_ib_ = pga_ib; }
 
   // Set input gains
-  void set_vgain(uint32_t vgain) { vgain_ = vgain; }
+  void set_vgain(uint32_t vgain) {
+    // Datasheet says: "to avoid discrepancies in other registers,
+    // if AVGAIN is set then BVGAIN should be set to the same value."
+    avgain_ = vgain;
+    bvgain_ = vgain;
+  }
   void set_aigain(uint32_t aigain) { aigain_ = aigain; }
   void set_bigain(uint32_t bigain) { bigain_ = bigain; }
   void set_awgain(uint32_t awgain) { awgain_ = awgain; }
@@ -100,7 +105,8 @@ class ADE7953 : public PollingComponent, public sensor::Sensor {
   uint8_t pga_v_;
   uint8_t pga_ia_;
   uint8_t pga_ib_;
-  uint32_t vgain_;
+  uint32_t avgain_;
+  uint32_t bvgain_;
   uint32_t aigain_;
   uint32_t bigain_;
   uint32_t awgain_;

esphome/components/aht10/aht10.cpp

@@ -83,7 +83,7 @@ void AHT10Component::setup() {
 void AHT10Component::restart_read_() {
   if (this->read_count_ == AHT10_ATTEMPTS) {
     this->read_count_ = 0;
-    this->status_set_error("Reading timed out");
+    this->status_set_error(LOG_STR("Reading timed out"));
     return;
   }
   this->read_count_++;

esphome/components/alpha3/alpha3.cpp

@@ -56,13 +56,13 @@ bool Alpha3::is_current_response_type_(const uint8_t *response_type) {
 
 void Alpha3::handle_geni_response_(const uint8_t *response, uint16_t length) {
   if (this->response_offset_ >= this->response_length_) {
-    ESP_LOGD(TAG, "[%s] GENI response begin", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] GENI response begin", this->parent_->address_str());
     if (length < GENI_RESPONSE_HEADER_LENGTH) {
-      ESP_LOGW(TAG, "[%s] response to short", this->parent_->address_str().c_str());
+      ESP_LOGW(TAG, "[%s] response too short", this->parent_->address_str());
       return;
     }
     if (response[0] != 36 || response[2] != 248 || response[3] != 231 || response[4] != 10) {
-      ESP_LOGW(TAG, "[%s] response bytes %d %d %d %d %d don't match GENI HEADER", this->parent_->address_str().c_str(),
+      ESP_LOGW(TAG, "[%s] response bytes %d %d %d %d %d don't match GENI HEADER", this->parent_->address_str(),
                response[0], response[1], response[2], response[3], response[4]);
       return;
     }
@@ -77,11 +77,11 @@ void Alpha3::handle_geni_response_(const uint8_t *response, uint16_t length) {
   };
 
   if (this->is_current_response_type_(GENI_RESPONSE_TYPE_FLOW_HEAD)) {
-    ESP_LOGD(TAG, "[%s] FLOW HEAD Response", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] FLOW HEAD Response", this->parent_->address_str());
     extract_publish_sensor_value(GENI_RESPONSE_FLOW_OFFSET, this->flow_sensor_, 3600.0F);
     extract_publish_sensor_value(GENI_RESPONSE_HEAD_OFFSET, this->head_sensor_, .0001F);
   } else if (this->is_current_response_type_(GENI_RESPONSE_TYPE_POWER)) {
-    ESP_LOGD(TAG, "[%s] POWER Response", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] POWER Response", this->parent_->address_str());
     extract_publish_sensor_value(GENI_RESPONSE_POWER_OFFSET, this->power_sensor_, 1.0F);
     extract_publish_sensor_value(GENI_RESPONSE_CURRENT_OFFSET, this->current_sensor_, 1.0F);
     extract_publish_sensor_value(GENI_RESPONSE_MOTOR_SPEED_OFFSET, this->speed_sensor_, 1.0F);
@@ -100,7 +100,7 @@ void Alpha3::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc
       if (param->open.status == ESP_GATT_OK) {
         this->response_offset_ = 0;
         this->response_length_ = 0;
-        ESP_LOGI(TAG, "[%s] connection open", this->parent_->address_str().c_str());
+        ESP_LOGI(TAG, "[%s] connection open", this->parent_->address_str());
       }
       break;
     }
@@ -132,7 +132,7 @@ void Alpha3::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc
     case ESP_GATTC_SEARCH_CMPL_EVT: {
       auto *chr = this->parent_->get_characteristic(ALPHA3_GENI_SERVICE_UUID, ALPHA3_GENI_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
-        ESP_LOGE(TAG, "[%s] No GENI service found at device, not an Alpha3..?", this->parent_->address_str().c_str());
+        ESP_LOGE(TAG, "[%s] No GENI service found at device, not an Alpha3..?", this->parent_->address_str());
         break;
       }
       auto status = esp_ble_gattc_register_for_notify(this->parent_->get_gattc_if(), this->parent_->get_remote_bda(),
@@ -164,12 +164,12 @@ void Alpha3::send_request_(uint8_t *request, size_t len) {
       esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->geni_handle_, len,
                                request, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
   if (status)
-    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
 }
 
 void Alpha3::update() {
   if (this->node_state != espbt::ClientState::ESTABLISHED) {
-    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str());
     return;
   }
 

esphome/components/am43/sensor/am43_sensor.cpp

@@ -44,11 +44,9 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
       auto *chr = this->parent_->get_characteristic(AM43_SERVICE_UUID, AM43_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
         if (this->parent_->get_characteristic(AM43_TUYA_SERVICE_UUID, AM43_TUYA_CHARACTERISTIC_UUID) != nullptr) {
-          ESP_LOGE(TAG, "[%s] Detected a Tuya AM43 which is not supported, sorry.",
-                   this->parent_->address_str().c_str());
+          ESP_LOGE(TAG, "[%s] Detected a Tuya AM43 which is not supported, sorry.", this->parent_->address_str());
         } else {
-          ESP_LOGE(TAG, "[%s] No control service found at device, not an AM43..?",
-                   this->parent_->address_str().c_str());
+          ESP_LOGE(TAG, "[%s] No control service found at device, not an AM43..?", this->parent_->address_str());
         }
         break;
       }
@@ -82,8 +80,7 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
                                                  this->char_handle_, packet->length, packet->data,
                                                  ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
           if (status) {
-            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(),
-                     status);
+            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
           }
         }
         this->current_sensor_ = 0;
@@ -97,7 +94,7 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
 
 void Am43::update() {
   if (this->node_state != espbt::ClientState::ESTABLISHED) {
-    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str());
     return;
   }
   if (this->current_sensor_ == 0) {
@@ -107,7 +104,7 @@ void Am43::update() {
           esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                    packet->length, packet->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
       if (status) {
-        ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+        ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
       }
     }
     this->current_sensor_++;

esphome/components/analog_threshold/analog_threshold_binary_sensor.cpp

@@ -12,10 +12,11 @@ void AnalogThresholdBinarySensor::setup() {
   // TRUE state is defined to be when sensor is >= threshold
   // so when undefined sensor value initialize to FALSE
   if (std::isnan(sensor_value)) {
+    this->raw_state_ = false;
     this->publish_initial_state(false);
   } else {
-    this->publish_initial_state(sensor_value >=
-                                (this->lower_threshold_.value() + this->upper_threshold_.value()) / 2.0f);
+    this->raw_state_ = sensor_value >= (this->lower_threshold_.value() + this->upper_threshold_.value()) / 2.0f;
+    this->publish_initial_state(this->raw_state_);
   }
 }
 
@@ -25,8 +26,10 @@ void AnalogThresholdBinarySensor::set_sensor(sensor::Sensor *analog_sensor) {
   this->sensor_->add_on_state_callback([this](float sensor_value) {
     // if there is an invalid sensor reading, ignore the change and keep the current state
     if (!std::isnan(sensor_value)) {
-      this->publish_state(sensor_value >=
-                          (this->state ? this->lower_threshold_.value() : this->upper_threshold_.value()));
+      // Use raw_state_ for hysteresis logic, not this->state which is post-filter
+      this->raw_state_ =
+          sensor_value >= (this->raw_state_ ? this->lower_threshold_.value() : this->upper_threshold_.value());
+      this->publish_state(this->raw_state_);
     }
   });
 }

esphome/components/analog_threshold/analog_threshold_binary_sensor.h

@@ -20,6 +20,7 @@ class AnalogThresholdBinarySensor : public Component, public binary_sensor::Bina
   sensor::Sensor *sensor_{nullptr};
   TemplatableValue<float> upper_threshold_{};
   TemplatableValue<float> lower_threshold_{};
+  bool raw_state_{false};  // Pre-filter state for hysteresis logic
 };
 
 }  // namespace analog_threshold

esphome/components/anova/anova.cpp

@@ -42,7 +42,7 @@ void Anova::control(const ClimateCall &call) {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
   }
   if (call.get_target_temperature().has_value()) {
@@ -51,7 +51,7 @@ void Anova::control(const ClimateCall &call) {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
   }
 }
@@ -124,8 +124,7 @@ void Anova::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_
               esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                        pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
           if (status) {
-            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(),
-                     status);
+            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
           }
         }
       }
@@ -150,7 +149,7 @@ void Anova::update() {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
     this->current_request_++;
   }

esphome/components/api/__init__.py

@@ -27,12 +27,13 @@ from esphome.const import (
     CONF_SERVICE,
     CONF_SERVICES,
     CONF_TAG,
+    CONF_THEN,
     CONF_TRIGGER_ID,
     CONF_VARIABLES,
 )
-from esphome.core import CORE, ID, CoroPriority, coroutine_with_priority
-from esphome.cpp_generator import TemplateArgsType
-from esphome.types import ConfigType
+from esphome.core import CORE, ID, CoroPriority, EsphomeError, coroutine_with_priority
+from esphome.cpp_generator import MockObj, TemplateArgsType
+from esphome.types import ConfigFragmentType, ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -63,17 +64,21 @@ HomeAssistantActionResponseTrigger = api_ns.class_(
     "HomeAssistantActionResponseTrigger", automation.Trigger
 )
 APIConnectedCondition = api_ns.class_("APIConnectedCondition", Condition)
+APIRespondAction = api_ns.class_("APIRespondAction", automation.Action)
+APIUnregisterServiceCallAction = api_ns.class_(
+    "APIUnregisterServiceCallAction", automation.Action
+)
 
 UserServiceTrigger = api_ns.class_("UserServiceTrigger", automation.Trigger)
 ListEntitiesServicesArgument = api_ns.class_("ListEntitiesServicesArgument")
-SERVICE_ARG_NATIVE_TYPES = {
-    "bool": bool,
+SERVICE_ARG_NATIVE_TYPES: dict[str, MockObj] = {
+    "bool": cg.bool_,
     "int": cg.int32,
-    "float": float,
+    "float": cg.float_,
     "string": cg.std_string,
-    "bool[]": cg.FixedVector.template(bool).operator("const").operator("ref"),
+    "bool[]": cg.FixedVector.template(cg.bool_).operator("const").operator("ref"),
     "int[]": cg.FixedVector.template(cg.int32).operator("const").operator("ref"),
-    "float[]": cg.FixedVector.template(float).operator("const").operator("ref"),
+    "float[]": cg.FixedVector.template(cg.float_).operator("const").operator("ref"),
     "string[]": cg.FixedVector.template(cg.std_string)
     .operator("const")
     .operator("ref"),
@@ -85,6 +90,7 @@ CONF_HOMEASSISTANT_SERVICES = "homeassistant_services"
 CONF_HOMEASSISTANT_STATES = "homeassistant_states"
 CONF_LISTEN_BACKLOG = "listen_backlog"
 CONF_MAX_SEND_QUEUE = "max_send_queue"
+CONF_STATE_SUBSCRIPTION_ONLY = "state_subscription_only"
 
 
 def validate_encryption_key(value):
@@ -101,6 +107,85 @@ def validate_encryption_key(value):
     return value
 
 
+CONF_SUPPORTS_RESPONSE = "supports_response"
+
+# Enum values in api::enums namespace
+enums_ns = api_ns.namespace("enums")
+SUPPORTS_RESPONSE_OPTIONS = {
+    "none": enums_ns.SUPPORTS_RESPONSE_NONE,
+    "optional": enums_ns.SUPPORTS_RESPONSE_OPTIONAL,
+    "only": enums_ns.SUPPORTS_RESPONSE_ONLY,
+    "status": enums_ns.SUPPORTS_RESPONSE_STATUS,
+}
+
+
+def _auto_detect_supports_response(config: ConfigType) -> ConfigType:
+    """Auto-detect supports_response based on api.respond usage in the action's then block.
+
+    - If api.respond with data found: set to "optional" (unless user explicitly set)
+    - If api.respond without data found: set to "status" (unless user explicitly set)
+    - If no api.respond found: set to "none" (unless user explicitly set)
+    """
+
+    def scan_actions(items: ConfigFragmentType) -> tuple[bool, bool]:
+        """Recursively scan actions for api.respond.
+
+        Returns: (found, has_data) tuple - has_data is True if ANY api.respond has data
+        """
+        found_any = False
+        has_data_any = False
+
+        if isinstance(items, list):
+            for item in items:
+                found, has_data = scan_actions(item)
+                if found:
+                    found_any = True
+                    has_data_any = has_data_any or has_data
+        elif isinstance(items, dict):
+            # Check if this is an api.respond action
+            if "api.respond" in items:
+                respond_config = items["api.respond"]
+                has_data = isinstance(respond_config, dict) and "data" in respond_config
+                return True, has_data
+            # Recursively check all values
+            for value in items.values():
+                found, has_data = scan_actions(value)
+                if found:
+                    found_any = True
+                    has_data_any = has_data_any or has_data
+
+        return found_any, has_data_any
+
+    then = config.get(CONF_THEN, [])
+    action_name = config.get(CONF_ACTION)
+    found, has_data = scan_actions(then)
+
+    # If user explicitly set supports_response, validate and use that
+    if CONF_SUPPORTS_RESPONSE in config:
+        user_value = config[CONF_SUPPORTS_RESPONSE]
+        # Validate: "only" requires api.respond with data
+        if user_value == "only" and not has_data:
+            raise cv.Invalid(
+                f"Action '{action_name}' has supports_response=only but no api.respond "
+                "action with 'data:' was found. Use 'status' for responses without data, "
+                "or add 'data:' to your api.respond action."
+            )
+        return config
+
+    # Auto-detect based on api.respond usage
+    if found:
+        config[CONF_SUPPORTS_RESPONSE] = "optional" if has_data else "status"
+    else:
+        config[CONF_SUPPORTS_RESPONSE] = "none"
+
+    return config
+
+
+def _validate_supports_response(value):
+    """Validate supports_response after auto-detection has set the value."""
+    return cv.enum(SUPPORTS_RESPONSE_OPTIONS, lower=True)(value)
+
+
 ACTIONS_SCHEMA = automation.validate_automation(
     {
         cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(UserServiceTrigger),
@@ -111,10 +196,20 @@ ACTIONS_SCHEMA = automation.validate_automation(
                 cv.validate_id_name: cv.one_of(*SERVICE_ARG_NATIVE_TYPES, lower=True),
             }
         ),
+        # No default - auto-detected by _auto_detect_supports_response
+        cv.Optional(CONF_SUPPORTS_RESPONSE): cv.enum(
+            SUPPORTS_RESPONSE_OPTIONS, lower=True
+        ),
     },
     cv.All(
         cv.has_exactly_one_key(CONF_SERVICE, CONF_ACTION),
         cv.rename_key(CONF_SERVICE, CONF_ACTION),
+        _auto_detect_supports_response,
+        # Re-validate supports_response after auto-detection sets it
+        cv.Schema(
+            {cv.Required(CONF_SUPPORTS_RESPONSE): _validate_supports_response},
+            extra=cv.ALLOW_EXTRA,
+        ),
     ),
 )
 
@@ -151,7 +246,7 @@ def _validate_api_config(config: ConfigType) -> ConfigType:
         _LOGGER.warning(
             "API 'password' authentication has been deprecated since May 2022 and will be removed in version 2026.1.0. "
             "Please migrate to the 'encryption' configuration. "
-            "See https://esphome.io/components/api.html#configuration-variables"
+            "See https://esphome.io/components/api/#configuration-variables"
         )
 
     return config
@@ -241,7 +336,7 @@ CONFIG_SCHEMA = cv.All(
 
 
 @coroutine_with_priority(CoroPriority.WEB)
-async def to_code(config):
+async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
 
@@ -260,9 +355,9 @@ async def to_code(config):
         cg.add(var.set_max_connections(config[CONF_MAX_CONNECTIONS]))
     cg.add_define("API_MAX_SEND_QUEUE", config[CONF_MAX_SEND_QUEUE])
 
-    # Set USE_API_SERVICES if any services are enabled
+    # Set USE_API_USER_DEFINED_ACTIONS if any services are enabled
     if config.get(CONF_ACTIONS) or config[CONF_CUSTOM_SERVICES]:
-        cg.add_define("USE_API_SERVICES")
+        cg.add_define("USE_API_USER_DEFINED_ACTIONS")
 
     # Set USE_API_CUSTOM_SERVICES if external components need dynamic service registration
     if config[CONF_CUSTOM_SERVICES]:
@@ -278,20 +373,61 @@ async def to_code(config):
         # Collect all triggers first, then register all at once with initializer_list
         triggers: list[cg.Pvariable] = []
         for conf in actions:
-            template_args = []
-            func_args = []
-            service_arg_names = []
+            func_args: list[tuple[MockObj, str]] = []
+            service_template_args: list[MockObj] = []  # User service argument types
+
+            # Determine supports_response mode
+            # cv.enum returns the key with enum_value attribute containing the MockObj
+            supports_response_key = conf[CONF_SUPPORTS_RESPONSE]
+            supports_response = supports_response_key.enum_value
+            is_none = supports_response_key == "none"
+            is_optional = supports_response_key == "optional"
+
+            # Add call_id and return_response based on supports_response mode
+            # These must match the C++ Trigger template arguments
+            # - none: no extra args
+            # - status: call_id only (for reporting success/error without data)
+            # - only: call_id only (response always expected with data)
+            # - optional: call_id + return_response (client decides)
+            if not is_none:
+                # call_id is present for "optional", "only", and "status"
+                func_args.append((cg.uint32, "call_id"))
+                # return_response only present for "optional"
+                if is_optional:
+                    func_args.append((cg.bool_, "return_response"))
+
+            service_arg_names: list[str] = []
             for name, var_ in conf[CONF_VARIABLES].items():
                 native = SERVICE_ARG_NATIVE_TYPES[var_]
-                template_args.append(native)
+                service_template_args.append(native)
                 func_args.append((native, name))
                 service_arg_names.append(name)
-            templ = cg.TemplateArguments(*template_args)
+            # Template args: supports_response mode, then user service arg types
+            templ = cg.TemplateArguments(supports_response, *service_template_args)
             trigger = cg.new_Pvariable(
-                conf[CONF_TRIGGER_ID], templ, conf[CONF_ACTION], service_arg_names
+                conf[CONF_TRIGGER_ID],
+                templ,
+                conf[CONF_ACTION],
+                service_arg_names,
             )
             triggers.append(trigger)
-            await automation.build_automation(trigger, func_args, conf)
+            auto = await automation.build_automation(trigger, func_args, conf)
+
+            # For non-none response modes, automatically append unregister action
+            # This ensures the call is unregistered after all actions complete (including async ones)
+            if not is_none:
+                arg_types = [arg[0] for arg in func_args]
+                action_templ = cg.TemplateArguments(*arg_types)
+                unregister_id = ID(
+                    f"{conf[CONF_TRIGGER_ID]}__unregister",
+                    is_declaration=True,
+                    type=APIUnregisterServiceCallAction.template(action_templ),
+                )
+                unregister_action = cg.new_Pvariable(
+                    unregister_id,
+                    var,
+                )
+                cg.add(auto.add_actions([unregister_action]))
         # Register all services at once - single allocation, no reallocations
         cg.add(var.initialize_user_services(triggers))
 
@@ -537,9 +673,98 @@ async def homeassistant_tag_scanned_to_code(config, action_id, template_arg, arg
     return var
 
 
-@automation.register_condition("api.connected", APIConnectedCondition, {})
+CONF_SUCCESS = "success"
+CONF_ERROR_MESSAGE = "error_message"
+
+
+def _validate_api_respond_data(config):
+    """Set flag during validation so AUTO_LOAD can include json component."""
+    if CONF_DATA in config:
+        CORE.data.setdefault(DOMAIN, {})[CONF_CAPTURE_RESPONSE] = True
+    return config
+
+
+API_RESPOND_ACTION_SCHEMA = cv.All(
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.use_id(APIServer),
+            cv.Optional(CONF_SUCCESS, default=True): cv.templatable(cv.boolean),
+            cv.Optional(CONF_ERROR_MESSAGE, default=""): cv.templatable(cv.string),
+            cv.Optional(CONF_DATA): cv.lambda_,
+        }
+    ),
+    _validate_api_respond_data,
+)
+
+
+@automation.register_action(
+    "api.respond",
+    APIRespondAction,
+    API_RESPOND_ACTION_SCHEMA,
+)
+async def api_respond_to_code(
+    config: ConfigType,
+    action_id: ID,
+    template_arg: cg.TemplateArguments,
+    args: TemplateArgsType,
+) -> MockObj:
+    # Validate that api.respond is used inside an API action context.
+    # We can't easily validate this at config time since the schema validation
+    # doesn't have access to the parent action context. Validating here in to_code
+    # is still much better than a cryptic C++ compile error.
+    has_call_id = any(name == "call_id" for _, name in args)
+    if not has_call_id:
+        raise EsphomeError(
+            "api.respond can only be used inside an API action's 'then:' block. "
+            "The 'call_id' variable is required to send a response."
+        )
+
+    cg.add_define("USE_API_USER_DEFINED_ACTION_RESPONSES")
+    serv = await cg.get_variable(config[CONF_ID])
+    var = cg.new_Pvariable(action_id, template_arg, serv)
+
+    # Check if we're in optional mode (has return_response arg)
+    is_optional = any(name == "return_response" for _, name in args)
+    if is_optional:
+        cg.add(var.set_is_optional_mode(True))
+
+    templ = await cg.templatable(config[CONF_SUCCESS], args, cg.bool_)
+    cg.add(var.set_success(templ))
+
+    templ = await cg.templatable(config[CONF_ERROR_MESSAGE], args, cg.std_string)
+    cg.add(var.set_error_message(templ))
+
+    if CONF_DATA in config:
+        cg.add_define("USE_API_USER_DEFINED_ACTION_RESPONSES_JSON")
+        # Lambda populates the JsonObject root - no return value needed
+        lambda_ = await cg.process_lambda(
+            config[CONF_DATA],
+            args + [(cg.JsonObject, "root")],
+            return_type=cg.void,
+        )
+        cg.add(var.set_data(lambda_))
+
+    return var
+
+
+API_CONNECTED_CONDITION_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.use_id(APIServer),
+        cv.Optional(CONF_STATE_SUBSCRIPTION_ONLY, default=False): cv.templatable(
+            cv.boolean
+        ),
+    }
+)
+
+
+@automation.register_condition(
+    "api.connected", APIConnectedCondition, API_CONNECTED_CONDITION_SCHEMA
+)
 async def api_connected_to_code(config, condition_id, template_arg, args):
-    return cg.new_Pvariable(condition_id, template_arg)
+    var = cg.new_Pvariable(condition_id, template_arg)
+    templ = await cg.templatable(config[CONF_STATE_SUBSCRIPTION_ONLY], args, cg.bool_)
+    cg.add(var.set_state_subscription_only(templ))
+    return var
 
 
 def FILTER_SOURCE_FILES() -> list[str]:

esphome/components/api/api.proto

@@ -518,7 +518,7 @@ message ListEntitiesLightResponse {
   bool legacy_supports_color_temperature = 8 [deprecated=true];
   float min_mireds = 9;
   float max_mireds = 10;
-  repeated string effects = 11;
+  repeated string effects = 11 [(container_pointer_no_template) = "FixedVector<const char *>"];
   bool disabled_by_default = 13;
   string icon = 14 [(field_ifdef) = "USE_ENTITY_ICON"];
   EntityCategory entity_category = 15;
@@ -579,7 +579,7 @@ message LightCommandRequest {
   bool has_flash_length = 16;
   uint32 flash_length = 17;
   bool has_effect = 18;
-  string effect = 19;
+  string effect = 19 [(pointer_to_buffer) = true];
   uint32 device_id = 28 [(field_ifdef) = "USE_DEVICES"];
 }
 
@@ -589,6 +589,7 @@ enum SensorStateClass {
   STATE_CLASS_MEASUREMENT = 1;
   STATE_CLASS_TOTAL_INCREASING = 2;
   STATE_CLASS_TOTAL = 3;
+  STATE_CLASS_MEASUREMENT_ANGLE = 4;
 }
 
 // Deprecated in API version 1.5
@@ -854,22 +855,31 @@ enum ServiceArgType {
   SERVICE_ARG_TYPE_FLOAT_ARRAY = 6;
   SERVICE_ARG_TYPE_STRING_ARRAY = 7;
 }
+enum SupportsResponseType {
+  SUPPORTS_RESPONSE_NONE = 0;
+  SUPPORTS_RESPONSE_OPTIONAL = 1;
+  SUPPORTS_RESPONSE_ONLY = 2;
+  // Status-only response - reports success/error without data payload
+  // Value is higher to avoid conflicts with future Home Assistant values
+  SUPPORTS_RESPONSE_STATUS = 100;
+}
 message ListEntitiesServicesArgument {
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
   string name = 1;
   ServiceArgType type = 2;
 }
 message ListEntitiesServicesResponse {
   option (id) = 41;
   option (source) = SOURCE_SERVER;
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
 
   string name = 1;
   fixed32 key = 2;
   repeated ListEntitiesServicesArgument args = 3 [(fixed_vector) = true];
+  SupportsResponseType supports_response = 4;
 }
 message ExecuteServiceArgument {
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
   bool bool_ = 1;
   int32 legacy_int = 2;
   float float_ = 3;
@@ -885,10 +895,25 @@ message ExecuteServiceRequest {
   option (id) = 42;
   option (source) = SOURCE_CLIENT;
   option (no_delay) = true;
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
 
   fixed32 key = 1;
   repeated ExecuteServiceArgument args = 2 [(fixed_vector) = true];
+  uint32 call_id = 3 [(field_ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES"];
+  bool return_response = 4 [(field_ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES"];
+}
+
+// Message sent by ESPHome to Home Assistant with service execution response data
+message ExecuteServiceResponse {
+  option (id) = 131;
+  option (source) = SOURCE_SERVER;
+  option (no_delay) = true;
+  option (ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES";
+
+  uint32 call_id = 1; // Matches the call_id from ExecuteServiceRequest
+  bool success = 2; // Whether the service execution succeeded
+  string error_message = 3; // Error message if success = false
+  bytes response_data = 4 [(pointer_to_buffer) = true, (field_ifdef) = "USE_API_USER_DEFINED_ACTION_RESPONSES_JSON"];
 }
 
 // ==================== CAMERA ====================
@@ -1170,7 +1195,7 @@ message SelectCommandRequest {
   option (base_class) = "CommandProtoMessage";
 
   fixed32 key = 1;
-  string state = 2;
+  string state = 2 [(pointer_to_buffer) = true];
   uint32 device_id = 3 [(field_ifdef) = "USE_DEVICES"];
 }
 

esphome/components/api/api_connection.cpp

@@ -6,11 +6,17 @@
 #ifdef USE_API_PLAINTEXT
 #include "api_frame_helper_plaintext.h"
 #endif
+#ifdef USE_API_USER_DEFINED_ACTIONS
+#include "user_services.h"
+#endif
 #include <cerrno>
 #include <cinttypes>
 #include <functional>
 #include <limits>
 #include <utility>
+#ifdef USE_ESP8266
+#include <pgmspace.h>
+#endif
 #include "esphome/components/network/util.h"
 #include "esphome/core/application.h"
 #include "esphome/core/entity_base.h"
@@ -90,8 +96,8 @@ static const int CAMERA_STOP_STREAM = 5000;
 APIConnection::APIConnection(std::unique_ptr<socket::Socket> sock, APIServer *parent)
     : parent_(parent), initial_state_iterator_(this), list_entities_iterator_(this) {
 #if defined(USE_API_PLAINTEXT) && defined(USE_API_NOISE)
-  auto noise_ctx = parent->get_noise_ctx();
-  if (noise_ctx->has_psk()) {
+  auto &noise_ctx = parent->get_noise_ctx();
+  if (noise_ctx.has_psk()) {
     this->helper_ =
         std::unique_ptr<APIFrameHelper>{new APINoiseFrameHelper(std::move(sock), noise_ctx, &this->client_info_)};
   } else {
@@ -169,8 +175,7 @@ void APIConnection::loop() {
       } else {
         this->last_traffic_ = now;
         // read a packet
-        this->read_message(buffer.data_len, buffer.type,
-                           buffer.data_len > 0 ? &buffer.container[buffer.data_offset] : nullptr);
+        this->read_message(buffer.data_len, buffer.type, buffer.data);
         if (this->flags_.remove)
           return;
       }
@@ -195,6 +200,9 @@ void APIConnection::loop() {
       }
       // Now that everything is sent, enable immediate sending for future state changes
       this->flags_.should_try_send_immediately = true;
+      // Release excess memory from buffers that grew during initial sync
+      this->deferred_batch_.release_buffer();
+      this->helper_->release_buffers();
     }
   }
 
@@ -484,12 +492,16 @@ uint16_t APIConnection::try_send_light_info(EntityBase *entity, APIConnection *c
     msg.min_mireds = traits.get_min_mireds();
     msg.max_mireds = traits.get_max_mireds();
   }
+  FixedVector<const char *> effects_list;
   if (light->supports_effects()) {
-    msg.effects.emplace_back("None");
-    for (auto *effect : light->get_effects()) {
-      msg.effects.emplace_back(effect->get_name());
+    auto &light_effects = light->get_effects();
+    effects_list.init(light_effects.size() + 1);
+    effects_list.push_back("None");
+    for (auto *effect : light_effects) {
+      effects_list.push_back(effect->get_name());
     }
   }
+  msg.effects = &effects_list;
   return fill_and_encode_entity_info(light, msg, ListEntitiesLightResponse::MESSAGE_TYPE, conn, remaining_size,
                                      is_single);
 }
@@ -521,7 +533,7 @@ void APIConnection::light_command(const LightCommandRequest &msg) {
   if (msg.has_flash_length)
     call.set_flash_length(msg.flash_length);
   if (msg.has_effect)
-    call.set_effect(msg.effect);
+    call.set_effect(reinterpret_cast<const char *>(msg.effect), msg.effect_len);
   call.perform();
 }
 #endif
@@ -893,7 +905,7 @@ uint16_t APIConnection::try_send_select_info(EntityBase *entity, APIConnection *
 }
 void APIConnection::select_command(const SelectCommandRequest &msg) {
   ENTITY_COMMAND_MAKE_CALL(select::Select, select, select)
-  call.set_option(msg.state);
+  call.set_option(reinterpret_cast<const char *>(msg.state), msg.state_len);
   call.perform();
 }
 #endif
@@ -1451,50 +1463,83 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
 #ifdef USE_AREAS
   resp.set_suggested_area(StringRef(App.get_area()));
 #endif
-  // mac_address must store temporary string - will be valid during send_message call
-  std::string mac_address = get_mac_address_pretty();
+  // Stack buffer for MAC address (XX:XX:XX:XX:XX:XX\0 = 18 bytes)
+  char mac_address[18];
+  uint8_t mac[6];
+  get_mac_address_raw(mac);
+  format_mac_addr_upper(mac, mac_address);
   resp.set_mac_address(StringRef(mac_address));
 
   resp.set_esphome_version(ESPHOME_VERSION_REF);
 
   resp.set_compilation_time(App.get_compilation_time_ref());
 
-  // Compile-time StringRef constants for manufacturers
+  // Manufacturer string - define once, handle ESP8266 PROGMEM separately
 #if defined(USE_ESP8266) || defined(USE_ESP32)
-  static constexpr auto MANUFACTURER = StringRef::from_lit("Espressif");
+#define ESPHOME_MANUFACTURER "Espressif"
 #elif defined(USE_RP2040)
-  static constexpr auto MANUFACTURER = StringRef::from_lit("Raspberry Pi");
+#define ESPHOME_MANUFACTURER "Raspberry Pi"
 #elif defined(USE_BK72XX)
-  static constexpr auto MANUFACTURER = StringRef::from_lit("Beken");
+#define ESPHOME_MANUFACTURER "Beken"
 #elif defined(USE_LN882X)
-  static constexpr auto MANUFACTURER = StringRef::from_lit("Lightning");
+#define ESPHOME_MANUFACTURER "Lightning"
 #elif defined(USE_NRF52)
-  static constexpr auto MANUFACTURER = StringRef::from_lit("Nordic Semiconductor");
+#define ESPHOME_MANUFACTURER "Nordic Semiconductor"
 #elif defined(USE_RTL87XX)
-  static constexpr auto MANUFACTURER = StringRef::from_lit("Realtek");
+#define ESPHOME_MANUFACTURER "Realtek"
 #elif defined(USE_HOST)
-  static constexpr auto MANUFACTURER = StringRef::from_lit("Host");
+#define ESPHOME_MANUFACTURER "Host"
 #endif
-  resp.set_manufacturer(MANUFACTURER);
 
+#ifdef USE_ESP8266
+  // ESP8266 requires PROGMEM for flash storage, copy to stack for memcpy compatibility
+  static const char MANUFACTURER_PROGMEM[] PROGMEM = ESPHOME_MANUFACTURER;
+  char manufacturer_buf[sizeof(MANUFACTURER_PROGMEM)];
+  memcpy_P(manufacturer_buf, MANUFACTURER_PROGMEM, sizeof(MANUFACTURER_PROGMEM));
+  resp.set_manufacturer(StringRef(manufacturer_buf, sizeof(MANUFACTURER_PROGMEM) - 1));
+#else
+  static constexpr auto MANUFACTURER = StringRef::from_lit(ESPHOME_MANUFACTURER);
+  resp.set_manufacturer(MANUFACTURER);
+#endif
+#undef ESPHOME_MANUFACTURER
+
+#ifdef USE_ESP8266
+  static const char MODEL_PROGMEM[] PROGMEM = ESPHOME_BOARD;
+  char model_buf[sizeof(MODEL_PROGMEM)];
+  memcpy_P(model_buf, MODEL_PROGMEM, sizeof(MODEL_PROGMEM));
+  resp.set_model(StringRef(model_buf, sizeof(MODEL_PROGMEM) - 1));
+#else
   static constexpr auto MODEL = StringRef::from_lit(ESPHOME_BOARD);
   resp.set_model(MODEL);
+#endif
 #ifdef USE_DEEP_SLEEP
   resp.has_deep_sleep = deep_sleep::global_has_deep_sleep;
 #endif
 #ifdef ESPHOME_PROJECT_NAME
+#ifdef USE_ESP8266
+  static const char PROJECT_NAME_PROGMEM[] PROGMEM = ESPHOME_PROJECT_NAME;
+  static const char PROJECT_VERSION_PROGMEM[] PROGMEM = ESPHOME_PROJECT_VERSION;
+  char project_name_buf[sizeof(PROJECT_NAME_PROGMEM)];
+  char project_version_buf[sizeof(PROJECT_VERSION_PROGMEM)];
+  memcpy_P(project_name_buf, PROJECT_NAME_PROGMEM, sizeof(PROJECT_NAME_PROGMEM));
+  memcpy_P(project_version_buf, PROJECT_VERSION_PROGMEM, sizeof(PROJECT_VERSION_PROGMEM));
+  resp.set_project_name(StringRef(project_name_buf, sizeof(PROJECT_NAME_PROGMEM) - 1));
+  resp.set_project_version(StringRef(project_version_buf, sizeof(PROJECT_VERSION_PROGMEM) - 1));
+#else
   static constexpr auto PROJECT_NAME = StringRef::from_lit(ESPHOME_PROJECT_NAME);
   static constexpr auto PROJECT_VERSION = StringRef::from_lit(ESPHOME_PROJECT_VERSION);
   resp.set_project_name(PROJECT_NAME);
   resp.set_project_version(PROJECT_VERSION);
 #endif
+#endif
 #ifdef USE_WEBSERVER
   resp.webserver_port = USE_WEBSERVER_PORT;
 #endif
 #ifdef USE_BLUETOOTH_PROXY
   resp.bluetooth_proxy_feature_flags = bluetooth_proxy::global_bluetooth_proxy->get_feature_flags();
-  // bt_mac must store temporary string - will be valid during send_message call
-  std::string bluetooth_mac = bluetooth_proxy::global_bluetooth_proxy->get_bluetooth_mac_address_pretty();
+  // Stack buffer for Bluetooth MAC address (XX:XX:XX:XX:XX:XX\0 = 18 bytes)
+  char bluetooth_mac[18];
+  bluetooth_proxy::global_bluetooth_proxy->get_bluetooth_mac_address_pretty(bluetooth_mac);
   resp.set_bluetooth_mac_address(StringRef(bluetooth_mac));
 #endif
 #ifdef USE_VOICE_ASSISTANT
@@ -1535,24 +1580,68 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
 #ifdef USE_API_HOMEASSISTANT_STATES
 void APIConnection::on_home_assistant_state_response(const HomeAssistantStateResponse &msg) {
   for (auto &it : this->parent_->get_state_subs()) {
-    if (it.entity_id == msg.entity_id && it.attribute.value() == msg.attribute) {
+    // Compare entity_id and attribute with message fields
+    bool entity_match = (strcmp(it.entity_id, msg.entity_id.c_str()) == 0);
+    bool attribute_match = (it.attribute != nullptr && strcmp(it.attribute, msg.attribute.c_str()) == 0) ||
+                           (it.attribute == nullptr && msg.attribute.empty());
+
+    if (entity_match && attribute_match) {
       it.callback(msg.state);
     }
   }
 }
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void APIConnection::execute_service(const ExecuteServiceRequest &msg) {
   bool found = false;
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  // Register the call and get a unique server-generated action_call_id
+  // This avoids collisions when multiple clients use the same call_id
+  uint32_t action_call_id = 0;
+  if (msg.call_id != 0) {
+    action_call_id = this->parent_->register_active_action_call(msg.call_id, this);
+  }
+  // Use the overload that passes action_call_id separately (avoids copying msg)
+  for (auto *service : this->parent_->get_user_services()) {
+    if (service->execute_service(msg, action_call_id)) {
+      found = true;
+    }
+  }
+#else
   for (auto *service : this->parent_->get_user_services()) {
     if (service->execute_service(msg)) {
       found = true;
     }
   }
+#endif
   if (!found) {
     ESP_LOGV(TAG, "Could not find service");
   }
+  // Note: For services with supports_response != none, the call is unregistered
+  // by an automatically appended APIUnregisterServiceCallAction at the end of
+  // the action list. This ensures async actions (delays, waits) complete first.
 }
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+void APIConnection::send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message) {
+  ExecuteServiceResponse resp;
+  resp.call_id = call_id;
+  resp.success = success;
+  resp.set_error_message(StringRef(error_message));
+  this->send_message(resp, ExecuteServiceResponse::MESSAGE_TYPE);
+}
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+void APIConnection::send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message,
+                                                  const uint8_t *response_data, size_t response_data_len) {
+  ExecuteServiceResponse resp;
+  resp.call_id = call_id;
+  resp.success = success;
+  resp.set_error_message(StringRef(error_message));
+  resp.response_data = response_data;
+  resp.response_data_len = response_data_len;
+  this->send_message(resp, ExecuteServiceResponse::MESSAGE_TYPE);
+}
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES
 #endif
 
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES
@@ -1580,7 +1669,7 @@ bool APIConnection::send_noise_encryption_set_key_response(const NoiseEncryption
     } else {
       ESP_LOGW(TAG, "Failed to clear encryption key");
     }
-  } else if (base64_decode(msg.key, psk.data(), msg.key.size()) != psk.size()) {
+  } else if (base64_decode(msg.key, psk.data(), psk.size()) != psk.size()) {
     ESP_LOGW(TAG, "Invalid encryption key length");
   } else if (!this->parent_->save_noise_psk(psk, true)) {
     ESP_LOGW(TAG, "Failed to save encryption key");
@@ -1652,13 +1741,13 @@ void APIConnection::DeferredBatch::add_item(EntityBase *entity, MessageCreator c
   for (auto &item : items) {
     if (item.entity == entity && item.message_type == message_type) {
       // Replace with new creator
-      item.creator = std::move(creator);
+      item.creator = creator;
       return;
     }
   }
 
   // No existing item found, add new one
-  items.emplace_back(entity, std::move(creator), message_type, estimated_size);
+  items.emplace_back(entity, creator, message_type, estimated_size);
 }
 
 void APIConnection::DeferredBatch::add_item_front(EntityBase *entity, MessageCreator creator, uint8_t message_type,
@@ -1667,7 +1756,7 @@ void APIConnection::DeferredBatch::add_item_front(EntityBase *entity, MessageCre
   // This avoids expensive vector::insert which shifts all elements
   // Note: We only ever have one high-priority message at a time (ping OR disconnect)
   // If we're disconnecting, pings are blocked, so this simple swap is sufficient
-  items.emplace_back(entity, std::move(creator), message_type, estimated_size);
+  items.emplace_back(entity, creator, message_type, estimated_size);
   if (items.size() > 1) {
     // Swap the new high-priority item to the front
     std::swap(items.front(), items.back());
@@ -1875,8 +1964,8 @@ void APIConnection::process_state_subscriptions_() {
   SubscribeHomeAssistantStateResponse resp;
   resp.set_entity_id(StringRef(it.entity_id));
 
-  // Avoid string copy by directly using the optional's value if it exists
-  resp.set_attribute(it.attribute.has_value() ? StringRef(it.attribute.value()) : StringRef(""));
+  // Avoid string copy by using the const char* pointer if it exists
+  resp.set_attribute(it.attribute != nullptr ? StringRef(it.attribute) : StringRef(""));
 
   resp.once = it.once;
   if (this->send_message(resp, SubscribeHomeAssistantStateResponse::MESSAGE_TYPE)) {

esphome/components/api/api_connection.h

@@ -221,8 +221,15 @@ class APIConnection final : public APIServerConnection {
 #ifdef USE_API_HOMEASSISTANT_STATES
   void subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) override;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   void execute_service(const ExecuteServiceRequest &msg) override;
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  void send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message);
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  void send_execute_service_response(uint32_t call_id, bool success, const std::string &error_message,
+                                     const uint8_t *response_data, size_t response_data_len);
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES
 #endif
 #ifdef USE_API_NOISE
   bool send_noise_encryption_set_key_response(const NoiseEncryptionSetKeyRequest &msg) override;
@@ -505,28 +512,9 @@ class APIConnection final : public APIServerConnection {
 
   class MessageCreator {
    public:
-    // Constructor for function pointer
     MessageCreator(MessageCreatorPtr ptr) { data_.function_ptr = ptr; }
-
-    // Constructor for const char * (Event types - no allocation needed)
     explicit MessageCreator(const char *str_value) { data_.const_char_ptr = str_value; }
 
-    // Delete copy operations - MessageCreator should only be moved
-    MessageCreator(const MessageCreator &other) = delete;
-    MessageCreator &operator=(const MessageCreator &other) = delete;
-
-    // Move constructor
-    MessageCreator(MessageCreator &&other) noexcept : data_(other.data_) { other.data_.function_ptr = nullptr; }
-
-    // Move assignment
-    MessageCreator &operator=(MessageCreator &&other) noexcept {
-      if (this != &other) {
-        data_ = other.data_;
-        other.data_.function_ptr = nullptr;
-      }
-      return *this;
-    }
-
     // Call operator - uses message_type to determine union type
     uint16_t operator()(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single,
                         uint8_t message_type) const;
@@ -535,7 +523,7 @@ class APIConnection final : public APIServerConnection {
     union Data {
       MessageCreatorPtr function_ptr;
       const char *const_char_ptr;
-    } data_;  // 4 bytes on 32-bit, 8 bytes on 64-bit - same as before
+    } data_;  // 4 bytes on 32-bit, 8 bytes on 64-bit
   };
 
   // Generic batching mechanism for both state updates and entity info
@@ -548,16 +536,14 @@ class APIConnection final : public APIServerConnection {
 
       // Constructor for creating BatchItem
       BatchItem(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size)
-          : entity(entity), creator(std::move(creator)), message_type(message_type), estimated_size(estimated_size) {}
+          : entity(entity), creator(creator), message_type(message_type), estimated_size(estimated_size) {}
     };
 
     std::vector<BatchItem> items;
     uint32_t batch_start_time{0};
 
-    DeferredBatch() {
-      // Pre-allocate capacity for typical batch sizes to avoid reallocation
-      items.reserve(8);
-    }
+    // No pre-allocation - log connections never use batching, and for
+    // connections that do, buffers are released after initial sync anyway
 
     // Add item to the batch
     void add_item(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size);
@@ -576,6 +562,15 @@ class APIConnection final : public APIServerConnection {
     bool empty() const { return items.empty(); }
     size_t size() const { return items.size(); }
     const BatchItem &operator[](size_t index) const { return items[index]; }
+    // Release excess capacity - only releases if items already empty
+    void release_buffer() {
+      // Safe to call: batch is processed before release_buffer is called,
+      // and if any items remain (partial processing), we must not clear them.
+      // Use swap trick since shrink_to_fit() is non-binding and may be ignored.
+      if (items.empty()) {
+        std::vector<BatchItem>().swap(items);
+      }
+    }
   };
 
   // DeferredBatch here (16 bytes, 4-byte aligned)
@@ -709,12 +704,12 @@ class APIConnection final : public APIServerConnection {
     }
 
     // Fall back to scheduled batching
-    return this->schedule_message_(entity, std::move(creator), message_type, estimated_size);
+    return this->schedule_message_(entity, creator, message_type, estimated_size);
   }
 
   // Helper function to schedule a deferred message with known message type
   bool schedule_message_(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size) {
-    this->deferred_batch_.add_item(entity, std::move(creator), message_type, estimated_size);
+    this->deferred_batch_.add_item(entity, creator, message_type, estimated_size);
     return this->schedule_batch_();
   }
 

esphome/components/api/api_frame_helper.h

@@ -35,10 +35,9 @@ struct ClientInfo;
 class ProtoWriteBuffer;
 
 struct ReadPacketBuffer {
-  std::vector<uint8_t> container;
-  uint16_t type;
-  uint16_t data_offset;
+  const uint8_t *data;  // Points directly into frame helper's rx_buf_ (valid until next read_packet call)
   uint16_t data_len;
+  uint16_t type;
 };
 
 // Packed packet info structure to minimize memory usage
@@ -84,9 +83,7 @@ class APIFrameHelper {
  public:
   APIFrameHelper() = default;
   explicit APIFrameHelper(std::unique_ptr<socket::Socket> socket, const ClientInfo *client_info)
-      : socket_owned_(std::move(socket)), client_info_(client_info) {
-    socket_ = socket_owned_.get();
-  }
+      : socket_(std::move(socket)), client_info_(client_info) {}
   virtual ~APIFrameHelper() = default;
   virtual APIError init() = 0;
   virtual APIError loop();
@@ -121,6 +118,22 @@ class APIFrameHelper {
   uint8_t frame_footer_size() const { return frame_footer_size_; }
   // Check if socket has data ready to read
   bool is_socket_ready() const { return socket_ != nullptr && socket_->ready(); }
+  // Release excess memory from internal buffers after initial sync
+  void release_buffers() {
+    // rx_buf_: Safe to clear only if no partial read in progress.
+    // rx_buf_len_ tracks bytes read so far; if non-zero, we're mid-frame
+    // and clearing would lose partially received data.
+    if (this->rx_buf_len_ == 0) {
+      // Use swap trick since shrink_to_fit() is non-binding and may be ignored
+      std::vector<uint8_t>().swap(this->rx_buf_);
+    }
+    // reusable_iovs_: Safe to release unconditionally.
+    // Only used within write_protobuf_packets() calls - cleared at start,
+    // populated with pointers, used for writev(), then function returns.
+    // The iovecs contain stale pointers after the call (data was either sent
+    // or copied to tx_buf_), and are cleared on next write_protobuf_packets().
+    std::vector<struct iovec>().swap(this->reusable_iovs_);
+  }
 
  protected:
   // Buffer containing data to be sent
@@ -149,9 +162,8 @@ class APIFrameHelper {
   APIError write_raw_(const struct iovec *iov, int iovcnt, socket::Socket *socket, std::vector<uint8_t> &tx_buf,
                       const std::string &info, StateEnum &state, StateEnum failed_state);
 
-  // Pointers first (4 bytes each)
-  socket::Socket *socket_{nullptr};
-  std::unique_ptr<socket::Socket> socket_owned_;
+  // Socket ownership (4 bytes on 32-bit, 8 bytes on 64-bit)
+  std::unique_ptr<socket::Socket> socket_;
 
   // Common state enum for all frame helpers
   // Note: Not all states are used by all implementations

esphome/components/api/api_frame_helper_noise.cpp

@@ -239,12 +239,13 @@ APIError APINoiseFrameHelper::state_action_() {
   }
   if (state_ == State::SERVER_HELLO) {
     // send server hello
+    constexpr size_t mac_len = 13;  // 12 hex chars + null terminator
     const std::string &name = App.get_name();
-    const std::string &mac = get_mac_address();
+    char mac[mac_len];
+    get_mac_address_into_buffer(mac);
 
     // Calculate positions and sizes
     size_t name_len = name.size() + 1;  // including null terminator
-    size_t mac_len = mac.size() + 1;    // including null terminator
     size_t name_offset = 1;
     size_t mac_offset = name_offset + name_len;
     size_t total_size = 1 + name_len + mac_len;
@@ -257,7 +258,7 @@ APIError APINoiseFrameHelper::state_action_() {
     // node name, terminated by null byte
     std::memcpy(msg.get() + name_offset, name.c_str(), name_len);
     // node mac, terminated by null byte
-    std::memcpy(msg.get() + mac_offset, mac.c_str(), mac_len);
+    std::memcpy(msg.get() + mac_offset, mac, mac_len);
 
     aerr = write_frame_(msg.get(), total_size);
     if (aerr != APIError::OK)
@@ -406,8 +407,7 @@ APIError APINoiseFrameHelper::read_packet(ReadPacketBuffer *buffer) {
     return APIError::BAD_DATA_PACKET;
   }
 
-  buffer->container = std::move(this->rx_buf_);
-  buffer->data_offset = 4;
+  buffer->data = msg_data + 4;  // Skip 4-byte header (type + length)
   buffer->data_len = data_len;
   buffer->type = type;
   return APIError::OK;
@@ -527,7 +527,7 @@ APIError APINoiseFrameHelper::init_handshake_() {
   if (aerr != APIError::OK)
     return aerr;
 
-  const auto &psk = ctx_->get_psk();
+  const auto &psk = this->ctx_.get_psk();
   err = noise_handshakestate_set_pre_shared_key(handshake_, psk.data(), psk.size());
   aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_set_pre_shared_key"),
                              APIError::HANDSHAKESTATE_SETUP_FAILED);

esphome/components/api/api_frame_helper_noise.h

@@ -9,9 +9,8 @@ namespace esphome::api {
 
 class APINoiseFrameHelper final : public APIFrameHelper {
  public:
-  APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, std::shared_ptr<APINoiseContext> ctx,
-                      const ClientInfo *client_info)
-      : APIFrameHelper(std::move(socket), client_info), ctx_(std::move(ctx)) {
+  APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, APINoiseContext &ctx, const ClientInfo *client_info)
+      : APIFrameHelper(std::move(socket), client_info), ctx_(ctx) {
     // Noise header structure:
     // Pos 0: indicator (0x01)
     // Pos 1-2: encrypted payload size (16-bit big-endian)
@@ -41,8 +40,8 @@ class APINoiseFrameHelper final : public APIFrameHelper {
   NoiseCipherState *send_cipher_{nullptr};
   NoiseCipherState *recv_cipher_{nullptr};
 
-  // Shared pointer (8 bytes on 32-bit = 4 bytes control block pointer + 4 bytes object pointer)
-  std::shared_ptr<APINoiseContext> ctx_;
+  // Reference to noise context (4 bytes on 32-bit)
+  APINoiseContext &ctx_;
 
   // Vector (12 bytes on 32-bit)
   std::vector<uint8_t> prologue_;

esphome/components/api/api_frame_helper_plaintext.cpp

@@ -210,8 +210,7 @@ APIError APIPlaintextFrameHelper::read_packet(ReadPacketBuffer *buffer) {
     return aerr;
   }
 
-  buffer->container = std::move(this->rx_buf_);
-  buffer->data_offset = 0;
+  buffer->data = this->rx_buf_.data();
   buffer->data_len = this->rx_header_parsed_len_;
   buffer->type = this->rx_header_parsed_type_;
   return APIError::OK;

esphome/components/api/api_pb2.cpp

@@ -476,8 +476,8 @@ void ListEntitiesLightResponse::encode(ProtoWriteBuffer buffer) const {
   }
   buffer.encode_float(9, this->min_mireds);
   buffer.encode_float(10, this->max_mireds);
-  for (auto &it : this->effects) {
-    buffer.encode_string(11, it, true);
+  for (const char *it : *this->effects) {
+    buffer.encode_string(11, it, strlen(it), true);
   }
   buffer.encode_bool(13, this->disabled_by_default);
 #ifdef USE_ENTITY_ICON
@@ -499,9 +499,9 @@ void ListEntitiesLightResponse::calculate_size(ProtoSize &size) const {
   }
   size.add_float(1, this->min_mireds);
   size.add_float(1, this->max_mireds);
-  if (!this->effects.empty()) {
-    for (const auto &it : this->effects) {
-      size.add_length_force(1, it.size());
+  if (!this->effects->empty()) {
+    for (const char *it : *this->effects) {
+      size.add_length_force(1, strlen(it));
     }
   }
   size.add_bool(1, this->disabled_by_default);
@@ -611,9 +611,12 @@ bool LightCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 }
 bool LightCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 19:
-      this->effect = value.as_string();
+    case 19: {
+      // Use raw data directly to avoid allocation
+      this->effect = value.data();
+      this->effect_len = value.size();
       break;
+    }
     default:
       return false;
   }
@@ -995,7 +998,7 @@ bool GetTimeResponse::decode_32bit(uint32_t field_id, Proto32Bit value) {
   }
   return true;
 }
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void ListEntitiesServicesArgument::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(1, this->name_ref_);
   buffer.encode_uint32(2, static_cast<uint32_t>(this->type));
@@ -1010,11 +1013,13 @@ void ListEntitiesServicesResponse::encode(ProtoWriteBuffer buffer) const {
   for (auto &it : this->args) {
     buffer.encode_message(3, it, true);
   }
+  buffer.encode_uint32(4, static_cast<uint32_t>(this->supports_response));
 }
 void ListEntitiesServicesResponse::calculate_size(ProtoSize &size) const {
   size.add_length(1, this->name_ref_.size());
   size.add_fixed32(1, this->key);
   size.add_repeated_message(1, this->args);
+  size.add_uint32(1, static_cast<uint32_t>(this->supports_response));
 }
 bool ExecuteServiceArgument::decode_varint(uint32_t field_id, ProtoVarInt value) {
   switch (field_id) {
@@ -1075,6 +1080,23 @@ void ExecuteServiceArgument::decode(const uint8_t *buffer, size_t length) {
   this->string_array.init(count_string_array);
   ProtoDecodableMessage::decode(buffer, length);
 }
+bool ExecuteServiceRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
+  switch (field_id) {
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+    case 3:
+      this->call_id = value.as_uint32();
+      break;
+#endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+    case 4:
+      this->return_response = value.as_bool();
+      break;
+#endif
+    default:
+      return false;
+  }
+  return true;
+}
 bool ExecuteServiceRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
     case 2:
@@ -1102,6 +1124,24 @@ void ExecuteServiceRequest::decode(const uint8_t *buffer, size_t length) {
   ProtoDecodableMessage::decode(buffer, length);
 }
 #endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+void ExecuteServiceResponse::encode(ProtoWriteBuffer buffer) const {
+  buffer.encode_uint32(1, this->call_id);
+  buffer.encode_bool(2, this->success);
+  buffer.encode_string(3, this->error_message_ref_);
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  buffer.encode_bytes(4, this->response_data, this->response_data_len);
+#endif
+}
+void ExecuteServiceResponse::calculate_size(ProtoSize &size) const {
+  size.add_uint32(1, this->call_id);
+  size.add_bool(1, this->success);
+  size.add_length(1, this->error_message_ref_.size());
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  size.add_length(4, this->response_data_len);
+#endif
+}
+#endif
 #ifdef USE_CAMERA
 void ListEntitiesCameraResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(1, this->object_id_ref_);
@@ -1532,9 +1572,12 @@ bool SelectCommandRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
 }
 bool SelectCommandRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
   switch (field_id) {
-    case 2:
-      this->state = value.as_string();
+    case 2: {
+      // Use raw data directly to avoid allocation
+      this->state = value.data();
+      this->state_len = value.size();
       break;
+    }
     default:
       return false;
   }

esphome/components/api/api_pb2.h

@@ -51,6 +51,7 @@ enum SensorStateClass : uint32_t {
   STATE_CLASS_MEASUREMENT = 1,
   STATE_CLASS_TOTAL_INCREASING = 2,
   STATE_CLASS_TOTAL = 3,
+  STATE_CLASS_MEASUREMENT_ANGLE = 4,
 };
 #endif
 enum LogLevel : uint32_t {
@@ -63,7 +64,7 @@ enum LogLevel : uint32_t {
   LOG_LEVEL_VERBOSE = 6,
   LOG_LEVEL_VERY_VERBOSE = 7,
 };
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 enum ServiceArgType : uint32_t {
   SERVICE_ARG_TYPE_BOOL = 0,
   SERVICE_ARG_TYPE_INT = 1,
@@ -74,6 +75,12 @@ enum ServiceArgType : uint32_t {
   SERVICE_ARG_TYPE_FLOAT_ARRAY = 6,
   SERVICE_ARG_TYPE_STRING_ARRAY = 7,
 };
+enum SupportsResponseType : uint32_t {
+  SUPPORTS_RESPONSE_NONE = 0,
+  SUPPORTS_RESPONSE_OPTIONAL = 1,
+  SUPPORTS_RESPONSE_ONLY = 2,
+  SUPPORTS_RESPONSE_STATUS = 100,
+};
 #endif
 #ifdef USE_CLIMATE
 enum ClimateMode : uint32_t {
@@ -793,7 +800,7 @@ class ListEntitiesLightResponse final : public InfoResponseProtoMessage {
   const light::ColorModeMask *supported_color_modes{};
   float min_mireds{0.0f};
   float max_mireds{0.0f};
-  std::vector<std::string> effects{};
+  const FixedVector<const char *> *effects{};
   void encode(ProtoWriteBuffer buffer) const override;
   void calculate_size(ProtoSize &size) const override;
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -833,7 +840,7 @@ class LightStateResponse final : public StateResponseProtoMessage {
 class LightCommandRequest final : public CommandProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 32;
-  static constexpr uint8_t ESTIMATED_SIZE = 112;
+  static constexpr uint8_t ESTIMATED_SIZE = 122;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "light_command_request"; }
 #endif
@@ -862,7 +869,8 @@ class LightCommandRequest final : public CommandProtoMessage {
   bool has_flash_length{false};
   uint32_t flash_length{0};
   bool has_effect{false};
-  std::string effect{};
+  const uint8_t *effect{nullptr};
+  uint16_t effect_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif
@@ -1239,7 +1247,7 @@ class GetTimeResponse final : public ProtoDecodableMessage {
   bool decode_32bit(uint32_t field_id, Proto32Bit value) override;
   bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;
 };
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 class ListEntitiesServicesArgument final : public ProtoMessage {
  public:
   StringRef name_ref_{};
@@ -1256,7 +1264,7 @@ class ListEntitiesServicesArgument final : public ProtoMessage {
 class ListEntitiesServicesResponse final : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 41;
-  static constexpr uint8_t ESTIMATED_SIZE = 48;
+  static constexpr uint8_t ESTIMATED_SIZE = 50;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "list_entities_services_response"; }
 #endif
@@ -1264,6 +1272,7 @@ class ListEntitiesServicesResponse final : public ProtoMessage {
   void set_name(const StringRef &ref) { this->name_ref_ = ref; }
   uint32_t key{0};
   FixedVector<ListEntitiesServicesArgument> args{};
+  enums::SupportsResponseType supports_response{};
   void encode(ProtoWriteBuffer buffer) const override;
   void calculate_size(ProtoSize &size) const override;
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -1296,12 +1305,18 @@ class ExecuteServiceArgument final : public ProtoDecodableMessage {
 class ExecuteServiceRequest final : public ProtoDecodableMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 42;
-  static constexpr uint8_t ESTIMATED_SIZE = 39;
+  static constexpr uint8_t ESTIMATED_SIZE = 45;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "execute_service_request"; }
 #endif
   uint32_t key{0};
   FixedVector<ExecuteServiceArgument> args{};
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  uint32_t call_id{0};
+#endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  bool return_response{false};
+#endif
   void decode(const uint8_t *buffer, size_t length) override;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
@@ -1310,6 +1325,32 @@ class ExecuteServiceRequest final : public ProtoDecodableMessage {
  protected:
   bool decode_32bit(uint32_t field_id, Proto32Bit value) override;
   bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;
+  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
+};
+#endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+class ExecuteServiceResponse final : public ProtoMessage {
+ public:
+  static constexpr uint8_t MESSAGE_TYPE = 131;
+  static constexpr uint8_t ESTIMATED_SIZE = 34;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  const char *message_name() const override { return "execute_service_response"; }
+#endif
+  uint32_t call_id{0};
+  bool success{false};
+  StringRef error_message_ref_{};
+  void set_error_message(const StringRef &ref) { this->error_message_ref_ = ref; }
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  const uint8_t *response_data{nullptr};
+  uint16_t response_data_len{0};
+#endif
+  void encode(ProtoWriteBuffer buffer) const override;
+  void calculate_size(ProtoSize &size) const override;
+#ifdef HAS_PROTO_MESSAGE_DUMP
+  void dump_to(std::string &out) const override;
+#endif
+
+ protected:
 };
 #endif
 #ifdef USE_CAMERA
@@ -1564,11 +1605,12 @@ class SelectStateResponse final : public StateResponseProtoMessage {
 class SelectCommandRequest final : public CommandProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 54;
-  static constexpr uint8_t ESTIMATED_SIZE = 18;
+  static constexpr uint8_t ESTIMATED_SIZE = 28;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "select_command_request"; }
 #endif
-  std::string state{};
+  const uint8_t *state{nullptr};
+  uint16_t state_len{0};
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void dump_to(std::string &out) const override;
 #endif

esphome/components/api/api_pb2_dump.cpp

@@ -66,7 +66,7 @@ static void dump_field(std::string &out, const char *field_name, float value, in
 static void dump_field(std::string &out, const char *field_name, uint64_t value, int indent = 2) {
   char buffer[64];
   append_field_prefix(out, field_name, indent);
-  snprintf(buffer, 64, "%llu", value);
+  snprintf(buffer, 64, "%" PRIu64, value);
   append_with_newline(out, buffer);
 }
 
@@ -179,6 +179,8 @@ template<> const char *proto_enum_to_string<enums::SensorStateClass>(enums::Sens
       return "STATE_CLASS_TOTAL_INCREASING";
     case enums::STATE_CLASS_TOTAL:
       return "STATE_CLASS_TOTAL";
+    case enums::STATE_CLASS_MEASUREMENT_ANGLE:
+      return "STATE_CLASS_MEASUREMENT_ANGLE";
     default:
       return "UNKNOWN";
   }
@@ -206,7 +208,7 @@ template<> const char *proto_enum_to_string<enums::LogLevel>(enums::LogLevel val
       return "UNKNOWN";
   }
 }
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 template<> const char *proto_enum_to_string<enums::ServiceArgType>(enums::ServiceArgType value) {
   switch (value) {
     case enums::SERVICE_ARG_TYPE_BOOL:
@@ -229,6 +231,20 @@ template<> const char *proto_enum_to_string<enums::ServiceArgType>(enums::Servic
       return "UNKNOWN";
   }
 }
+template<> const char *proto_enum_to_string<enums::SupportsResponseType>(enums::SupportsResponseType value) {
+  switch (value) {
+    case enums::SUPPORTS_RESPONSE_NONE:
+      return "SUPPORTS_RESPONSE_NONE";
+    case enums::SUPPORTS_RESPONSE_OPTIONAL:
+      return "SUPPORTS_RESPONSE_OPTIONAL";
+    case enums::SUPPORTS_RESPONSE_ONLY:
+      return "SUPPORTS_RESPONSE_ONLY";
+    case enums::SUPPORTS_RESPONSE_STATUS:
+      return "SUPPORTS_RESPONSE_STATUS";
+    default:
+      return "UNKNOWN";
+  }
+}
 #endif
 #ifdef USE_CLIMATE
 template<> const char *proto_enum_to_string<enums::ClimateMode>(enums::ClimateMode value) {
@@ -924,7 +940,7 @@ void ListEntitiesLightResponse::dump_to(std::string &out) const {
   }
   dump_field(out, "min_mireds", this->min_mireds);
   dump_field(out, "max_mireds", this->max_mireds);
-  for (const auto &it : this->effects) {
+  for (const auto &it : *this->effects) {
     dump_field(out, "effects", it, 4);
   }
   dump_field(out, "disabled_by_default", this->disabled_by_default);
@@ -983,7 +999,9 @@ void LightCommandRequest::dump_to(std::string &out) const {
   dump_field(out, "has_flash_length", this->has_flash_length);
   dump_field(out, "flash_length", this->flash_length);
   dump_field(out, "has_effect", this->has_effect);
-  dump_field(out, "effect", this->effect);
+  out.append("  effect: ");
+  out.append(format_hex_pretty(this->effect, this->effect_len));
+  out.append("\n");
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
 #endif
@@ -1177,7 +1195,7 @@ void GetTimeResponse::dump_to(std::string &out) const {
   out.append(format_hex_pretty(this->timezone, this->timezone_len));
   out.append("\n");
 }
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void ListEntitiesServicesArgument::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "ListEntitiesServicesArgument");
   dump_field(out, "name", this->name_ref_);
@@ -1192,6 +1210,7 @@ void ListEntitiesServicesResponse::dump_to(std::string &out) const {
     it.dump_to(out);
     out.append("\n");
   }
+  dump_field(out, "supports_response", static_cast<enums::SupportsResponseType>(this->supports_response));
 }
 void ExecuteServiceArgument::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "ExecuteServiceArgument");
@@ -1221,6 +1240,25 @@ void ExecuteServiceRequest::dump_to(std::string &out) const {
     it.dump_to(out);
     out.append("\n");
   }
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  dump_field(out, "call_id", this->call_id);
+#endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  dump_field(out, "return_response", this->return_response);
+#endif
+}
+#endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+void ExecuteServiceResponse::dump_to(std::string &out) const {
+  MessageDumpHelper helper(out, "ExecuteServiceResponse");
+  dump_field(out, "call_id", this->call_id);
+  dump_field(out, "success", this->success);
+  dump_field(out, "error_message", this->error_message_ref_);
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  out.append("  response_data: ");
+  out.append(format_hex_pretty(this->response_data, this->response_data_len));
+  out.append("\n");
+#endif
 }
 #endif
 #ifdef USE_CAMERA
@@ -1417,7 +1455,9 @@ void SelectStateResponse::dump_to(std::string &out) const {
 void SelectCommandRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "SelectCommandRequest");
   dump_field(out, "key", this->key);
-  dump_field(out, "state", this->state);
+  out.append("  state: ");
+  out.append(format_hex_pretty(this->state, this->state_len));
+  out.append("\n");
 #ifdef USE_DEVICES
   dump_field(out, "device_id", this->device_id);
 #endif

esphome/components/api/api_pb2_service.cpp

@@ -13,7 +13,7 @@ void APIServerConnectionBase::log_send_message_(const char *name, const std::str
 }
 #endif
 
-void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) {
+void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {
   switch (msg_type) {
     case HelloRequest::MESSAGE_TYPE: {
       HelloRequest msg;
@@ -193,7 +193,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       break;
     }
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
     case ExecuteServiceRequest::MESSAGE_TYPE: {
       ExecuteServiceRequest msg;
       msg.decode(msg_data, msg_size);
@@ -670,7 +670,7 @@ void APIServerConnection::on_subscribe_home_assistant_states_request(const Subsc
   this->subscribe_home_assistant_states(msg);
 }
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void APIServerConnection::on_execute_service_request(const ExecuteServiceRequest &msg) { this->execute_service(msg); }
 #endif
 #ifdef USE_API_NOISE
@@ -827,7 +827,7 @@ void APIServerConnection::on_z_wave_proxy_frame(const ZWaveProxyFrame &msg) { th
 void APIServerConnection::on_z_wave_proxy_request(const ZWaveProxyRequest &msg) { this->zwave_proxy_request(msg); }
 #endif
 
-void APIServerConnection::read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) {
+void APIServerConnection::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {
   // Check authentication/connection requirements for messages
   switch (msg_type) {
     case HelloRequest::MESSAGE_TYPE:  // No setup required

esphome/components/api/api_pb2_service.h

@@ -79,7 +79,7 @@ class APIServerConnectionBase : public ProtoService {
 
   virtual void on_get_time_response(const GetTimeResponse &value){};
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   virtual void on_execute_service_request(const ExecuteServiceRequest &value){};
 #endif
 
@@ -218,7 +218,7 @@ class APIServerConnectionBase : public ProtoService {
   virtual void on_z_wave_proxy_request(const ZWaveProxyRequest &value){};
 #endif
  protected:
-  void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) override;
+  void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;
 };
 
 class APIServerConnection : public APIServerConnectionBase {
@@ -239,7 +239,7 @@ class APIServerConnection : public APIServerConnectionBase {
 #ifdef USE_API_HOMEASSISTANT_STATES
   virtual void subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) = 0;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   virtual void execute_service(const ExecuteServiceRequest &msg) = 0;
 #endif
 #ifdef USE_API_NOISE
@@ -368,7 +368,7 @@ class APIServerConnection : public APIServerConnectionBase {
 #ifdef USE_API_HOMEASSISTANT_STATES
   void on_subscribe_home_assistant_states_request(const SubscribeHomeAssistantStatesRequest &msg) override;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   void on_execute_service_request(const ExecuteServiceRequest &msg) override;
 #endif
 #ifdef USE_API_NOISE
@@ -480,7 +480,7 @@ class APIServerConnection : public APIServerConnectionBase {
 #ifdef USE_ZWAVE_PROXY
   void on_z_wave_proxy_request(const ZWaveProxyRequest &msg) override;
 #endif
-  void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) override;
+  void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;
 };
 
 }  // namespace esphome::api

esphome/components/api/api_server.cpp

@@ -4,8 +4,8 @@
 #include "api_connection.h"
 #include "esphome/components/network/util.h"
 #include "esphome/core/application.h"
-#include "esphome/core/defines.h"
 #include "esphome/core/controller_registry.h"
+#include "esphome/core/defines.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
 #include "esphome/core/util.h"
@@ -52,11 +52,6 @@ void APIServer::setup() {
 #endif
 #endif
 
-  // Schedule reboot if no clients connect within timeout
-  if (this->reboot_timeout_ != 0) {
-    this->schedule_reboot_timeout_();
-  }
-
   this->socket_ = socket::socket_ip_loop_monitored(SOCK_STREAM, 0);  // monitored for incoming connections
   if (this->socket_ == nullptr) {
     ESP_LOGW(TAG, "Could not create socket");
@@ -101,42 +96,22 @@ void APIServer::setup() {
 
 #ifdef USE_LOGGER
   if (logger::global_logger != nullptr) {
-    logger::global_logger->add_on_log_callback(
-        [this](int level, const char *tag, const char *message, size_t message_len) {
-          if (this->shutting_down_) {
-            // Don't try to send logs during shutdown
-            // as it could result in a recursion and
-            // we would be filling a buffer we are trying to clear
-            return;
-          }
-          for (auto &c : this->clients_) {
-            if (!c->flags_.remove && c->get_log_subscription_level() >= level)
-              c->try_send_log_message(level, tag, message, message_len);
-          }
-        });
+    logger::global_logger->add_log_listener(this);
   }
 #endif
 
 #ifdef USE_CAMERA
   if (camera::Camera::instance() != nullptr && !camera::Camera::instance()->is_internal()) {
-    camera::Camera::instance()->add_image_callback([this](const std::shared_ptr<camera::CameraImage> &image) {
-      for (auto &c : this->clients_) {
-        if (!c->flags_.remove)
-          c->set_camera_state(image);
-      }
-    });
+    camera::Camera::instance()->add_listener(this);
   }
 #endif
-}
 
-void APIServer::schedule_reboot_timeout_() {
-  this->status_set_warning();
-  this->set_timeout("api_reboot", this->reboot_timeout_, []() {
-    if (!global_api_server->is_connected()) {
-      ESP_LOGE(TAG, "No clients; rebooting");
-      App.reboot();
-    }
-  });
+  // Initialize last_connected_ for reboot timeout tracking
+  this->last_connected_ = App.get_loop_component_start_time();
+  // Set warning status if reboot timeout is enabled
+  if (this->reboot_timeout_ != 0) {
+    this->status_set_warning();
+  }
 }
 
 void APIServer::loop() {
@@ -164,15 +139,24 @@ void APIServer::loop() {
       this->clients_.emplace_back(conn);
       conn->start();
 
-      // Clear warning status and cancel reboot when first client connects
+      // First client connected - clear warning and update timestamp
       if (this->clients_.size() == 1 && this->reboot_timeout_ != 0) {
         this->status_clear_warning();
-        this->cancel_timeout("api_reboot");
+        this->last_connected_ = App.get_loop_component_start_time();
       }
     }
   }
 
   if (this->clients_.empty()) {
+    // Check reboot timeout - done in loop to avoid scheduler heap churn
+    // (cancelled scheduler items sit in heap memory until their scheduled time)
+    if (this->reboot_timeout_ != 0) {
+      const uint32_t now = App.get_loop_component_start_time();
+      if (now - this->last_connected_ > this->reboot_timeout_) {
+        ESP_LOGE(TAG, "No clients; rebooting");
+        App.reboot();
+      }
+    }
     return;
   }
 
@@ -202,6 +186,9 @@ void APIServer::loop() {
     // Rare case: handle disconnection
 #ifdef USE_API_CLIENT_DISCONNECTED_TRIGGER
     this->client_disconnected_trigger_->trigger(client->client_info_.name, client->client_info_.peername);
+#endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+    this->unregister_active_action_calls_for_connection(client.get());
 #endif
     ESP_LOGV(TAG, "Remove connection %s", client->client_info_.name.c_str());
 
@@ -211,9 +198,10 @@ void APIServer::loop() {
     }
     this->clients_.pop_back();
 
-    // Schedule reboot when last client disconnects
+    // Last client disconnected - set warning and start tracking for reboot timeout
     if (this->clients_.empty() && this->reboot_timeout_ != 0) {
-      this->schedule_reboot_timeout_();
+      this->status_set_warning();
+      this->last_connected_ = App.get_loop_component_start_time();
     }
     // Don't increment client_index since we need to process the swapped element
   }
@@ -227,8 +215,8 @@ void APIServer::dump_config() {
                 "  Max connections: %u",
                 network::get_use_address(), this->port_, this->listen_backlog_, this->max_connections_);
 #ifdef USE_API_NOISE
-  ESP_LOGCONFIG(TAG, "  Noise encryption: %s", YESNO(this->noise_ctx_->has_psk()));
-  if (!this->noise_ctx_->has_psk()) {
+  ESP_LOGCONFIG(TAG, "  Noise encryption: %s", YESNO(this->noise_ctx_.has_psk()));
+  if (!this->noise_ctx_.has_psk()) {
     ESP_LOGCONFIG(TAG, "  Supports encryption: YES");
   }
 #else
@@ -431,25 +419,56 @@ void APIServer::handle_action_response(uint32_t call_id, bool success, const std
 #endif  // USE_API_HOMEASSISTANT_SERVICES
 
 #ifdef USE_API_HOMEASSISTANT_STATES
+// Helper to add subscription (reduces duplication)
+void APIServer::add_state_subscription_(const char *entity_id, const char *attribute,
+                                        std::function<void(std::string)> f, bool once) {
+  this->state_subs_.push_back(HomeAssistantStateSubscription{
+      .entity_id = entity_id, .attribute = attribute, .callback = std::move(f), .once = once,
+      // entity_id_dynamic_storage and attribute_dynamic_storage remain nullptr (no heap allocation)
+  });
+}
+
+// Helper to add subscription with heap-allocated strings (reduces duplication)
+void APIServer::add_state_subscription_(std::string entity_id, optional<std::string> attribute,
+                                        std::function<void(std::string)> f, bool once) {
+  HomeAssistantStateSubscription sub;
+  // Allocate heap storage for the strings
+  sub.entity_id_dynamic_storage = std::make_unique<std::string>(std::move(entity_id));
+  sub.entity_id = sub.entity_id_dynamic_storage->c_str();
+
+  if (attribute.has_value()) {
+    sub.attribute_dynamic_storage = std::make_unique<std::string>(std::move(attribute.value()));
+    sub.attribute = sub.attribute_dynamic_storage->c_str();
+  } else {
+    sub.attribute = nullptr;
+  }
+
+  sub.callback = std::move(f);
+  sub.once = once;
+  this->state_subs_.push_back(std::move(sub));
+}
+
+// New const char* overload (for internal components - zero allocation)
+void APIServer::subscribe_home_assistant_state(const char *entity_id, const char *attribute,
+                                               std::function<void(std::string)> f) {
+  this->add_state_subscription_(entity_id, attribute, std::move(f), false);
+}
+
+void APIServer::get_home_assistant_state(const char *entity_id, const char *attribute,
+                                         std::function<void(std::string)> f) {
+  this->add_state_subscription_(entity_id, attribute, std::move(f), true);
+}
+
+// Existing std::string overload (for custom_api_device.h - heap allocation)
 void APIServer::subscribe_home_assistant_state(std::string entity_id, optional<std::string> attribute,
                                                std::function<void(std::string)> f) {
-  this->state_subs_.push_back(HomeAssistantStateSubscription{
-      .entity_id = std::move(entity_id),
-      .attribute = std::move(attribute),
-      .callback = std::move(f),
-      .once = false,
-  });
+  this->add_state_subscription_(std::move(entity_id), std::move(attribute), std::move(f), false);
 }
 
 void APIServer::get_home_assistant_state(std::string entity_id, optional<std::string> attribute,
                                          std::function<void(std::string)> f) {
-  this->state_subs_.push_back(HomeAssistantStateSubscription{
-      .entity_id = std::move(entity_id),
-      .attribute = std::move(attribute),
-      .callback = std::move(f),
-      .once = true,
-  });
-};
+  this->add_state_subscription_(std::move(entity_id), std::move(attribute), std::move(f), true);
+}
 
 const std::vector<APIServer::HomeAssistantStateSubscription> &APIServer::get_state_subs() const {
   return this->state_subs_;
@@ -493,7 +512,7 @@ bool APIServer::save_noise_psk(psk_t psk, bool make_active) {
   ESP_LOGW(TAG, "Key set in YAML");
   return false;
 #else
-  auto &old_psk = this->noise_ctx_->get_psk();
+  auto &old_psk = this->noise_ctx_.get_psk();
   if (std::equal(old_psk.begin(), old_psk.end(), psk.begin())) {
     ESP_LOGW(TAG, "New PSK matches old");
     return true;
@@ -528,7 +547,42 @@ void APIServer::request_time() {
 }
 #endif
 
-bool APIServer::is_connected() const { return !this->clients_.empty(); }
+bool APIServer::is_connected(bool state_subscription_only) const {
+  if (!state_subscription_only) {
+    return !this->clients_.empty();
+  }
+
+  for (const auto &client : this->clients_) {
+    if (client->flags_.state_subscription) {
+      return true;
+    }
+  }
+  return false;
+}
+
+#ifdef USE_LOGGER
+void APIServer::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
+  if (this->shutting_down_) {
+    // Don't try to send logs during shutdown
+    // as it could result in a recursion and
+    // we would be filling a buffer we are trying to clear
+    return;
+  }
+  for (auto &c : this->clients_) {
+    if (!c->flags_.remove && c->get_log_subscription_level() >= level)
+      c->try_send_log_message(level, tag, message, message_len);
+  }
+}
+#endif
+
+#ifdef USE_CAMERA
+void APIServer::on_camera_image(const std::shared_ptr<camera::CameraImage> &image) {
+  for (auto &c : this->clients_) {
+    if (!c->flags_.remove)
+      c->set_camera_state(image);
+  }
+}
+#endif
 
 void APIServer::on_shutdown() {
   this->shutting_down_ = true;
@@ -565,5 +619,84 @@ bool APIServer::teardown() {
   return this->clients_.empty();
 }
 
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+// Timeout for action calls - matches aioesphomeapi client timeout (default 30s)
+// Can be overridden via USE_API_ACTION_CALL_TIMEOUT_MS define for testing
+#ifndef USE_API_ACTION_CALL_TIMEOUT_MS
+#define USE_API_ACTION_CALL_TIMEOUT_MS 30000  // NOLINT
+#endif
+
+uint32_t APIServer::register_active_action_call(uint32_t client_call_id, APIConnection *conn) {
+  uint32_t action_call_id = this->next_action_call_id_++;
+  // Handle wraparound (skip 0 as it means "no call")
+  if (this->next_action_call_id_ == 0) {
+    this->next_action_call_id_ = 1;
+  }
+  this->active_action_calls_.push_back({action_call_id, client_call_id, conn});
+
+  // Schedule automatic cleanup after timeout (client will have given up by then)
+  this->set_timeout(str_sprintf("action_call_%u", action_call_id), USE_API_ACTION_CALL_TIMEOUT_MS,
+                    [this, action_call_id]() {
+                      ESP_LOGD(TAG, "Action call %u timed out", action_call_id);
+                      this->unregister_active_action_call(action_call_id);
+                    });
+
+  return action_call_id;
+}
+
+void APIServer::unregister_active_action_call(uint32_t action_call_id) {
+  // Cancel the timeout for this action call
+  this->cancel_timeout(str_sprintf("action_call_%u", action_call_id));
+
+  // Swap-and-pop is more efficient than remove_if for unordered vectors
+  for (size_t i = 0; i < this->active_action_calls_.size(); i++) {
+    if (this->active_action_calls_[i].action_call_id == action_call_id) {
+      std::swap(this->active_action_calls_[i], this->active_action_calls_.back());
+      this->active_action_calls_.pop_back();
+      return;
+    }
+  }
+}
+
+void APIServer::unregister_active_action_calls_for_connection(APIConnection *conn) {
+  // Remove all active action calls for disconnected connection using swap-and-pop
+  for (size_t i = 0; i < this->active_action_calls_.size();) {
+    if (this->active_action_calls_[i].connection == conn) {
+      // Cancel the timeout for this action call
+      this->cancel_timeout(str_sprintf("action_call_%u", this->active_action_calls_[i].action_call_id));
+
+      std::swap(this->active_action_calls_[i], this->active_action_calls_.back());
+      this->active_action_calls_.pop_back();
+      // Don't increment i - need to check the swapped element
+    } else {
+      i++;
+    }
+  }
+}
+
+void APIServer::send_action_response(uint32_t action_call_id, bool success, const std::string &error_message) {
+  for (auto &call : this->active_action_calls_) {
+    if (call.action_call_id == action_call_id) {
+      call.connection->send_execute_service_response(call.client_call_id, success, error_message);
+      return;
+    }
+  }
+  ESP_LOGW(TAG, "Cannot send response: no active call found for action_call_id %u", action_call_id);
+}
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+void APIServer::send_action_response(uint32_t action_call_id, bool success, const std::string &error_message,
+                                     const uint8_t *response_data, size_t response_data_len) {
+  for (auto &call : this->active_action_calls_) {
+    if (call.action_call_id == action_call_id) {
+      call.connection->send_execute_service_response(call.client_call_id, success, error_message, response_data,
+                                                     response_data_len);
+      return;
+    }
+  }
+  ESP_LOGW(TAG, "Cannot send response: no active call found for action_call_id %u", action_call_id);
+}
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES
+
 }  // namespace esphome::api
 #endif

esphome/components/api/api_server.h

@@ -12,22 +12,39 @@
 #include "esphome/core/log.h"
 #include "list_entities.h"
 #include "subscribe_state.h"
-#ifdef USE_API_SERVICES
-#include "user_services.h"
+#ifdef USE_LOGGER
+#include "esphome/components/logger/logger.h"
+#endif
+#ifdef USE_CAMERA
+#include "esphome/components/camera/camera.h"
 #endif
 
-#include <map>
 #include <vector>
 
 namespace esphome::api {
 
+#ifdef USE_API_USER_DEFINED_ACTIONS
+// Forward declaration - full definition in user_services.h
+class UserServiceDescriptor;
+#endif
+
 #ifdef USE_API_NOISE
 struct SavedNoisePsk {
   psk_t psk;
 } PACKED;  // NOLINT
 #endif
 
-class APIServer : public Component, public Controller {
+class APIServer : public Component,
+                  public Controller
+#ifdef USE_LOGGER
+    ,
+                  public logger::LogListener
+#endif
+#ifdef USE_CAMERA
+    ,
+                  public camera::CameraListener
+#endif
+{
  public:
   APIServer();
   void setup() override;
@@ -37,6 +54,12 @@ class APIServer : public Component, public Controller {
   void dump_config() override;
   void on_shutdown() override;
   bool teardown() override;
+#ifdef USE_LOGGER
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override;
+#endif
+#ifdef USE_CAMERA
+  void on_camera_image(const std::shared_ptr<camera::CameraImage> &image) override;
+#endif
 #ifdef USE_API_PASSWORD
   bool check_password(const uint8_t *password_data, size_t password_len) const;
   void set_password(const std::string &password);
@@ -54,8 +77,8 @@ class APIServer : public Component, public Controller {
 #ifdef USE_API_NOISE
   bool save_noise_psk(psk_t psk, bool make_active = true);
   bool clear_noise_psk(bool make_active = true);
-  void set_noise_psk(psk_t psk) { noise_ctx_->set_psk(psk); }
-  std::shared_ptr<APINoiseContext> get_noise_ctx() { return noise_ctx_; }
+  void set_noise_psk(psk_t psk) { this->noise_ctx_.set_psk(psk); }
+  APINoiseContext &get_noise_ctx() { return this->noise_ctx_; }
 #endif  // USE_API_NOISE
 
   void handle_disconnect(APIConnection *conn);
@@ -124,7 +147,7 @@ class APIServer : public Component, public Controller {
 #endif  // USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
 #endif  // USE_API_HOMEASSISTANT_ACTION_RESPONSES
 #endif  // USE_API_HOMEASSISTANT_SERVICES
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   void initialize_user_services(std::initializer_list<UserServiceDescriptor *> services) {
     this->user_services_.assign(services);
   }
@@ -132,6 +155,19 @@ class APIServer : public Component, public Controller {
   // Only compile push_back method when custom_services: true (external components)
   void register_user_service(UserServiceDescriptor *descriptor) { this->user_services_.push_back(descriptor); }
 #endif
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  // Action call context management - supports concurrent calls from multiple clients
+  // Returns server-generated action_call_id to avoid collisions when clients use same call_id
+  uint32_t register_active_action_call(uint32_t client_call_id, APIConnection *conn);
+  void unregister_active_action_call(uint32_t action_call_id);
+  void unregister_active_action_calls_for_connection(APIConnection *conn);
+  // Send response for a specific action call (uses action_call_id, sends client_call_id in response)
+  void send_action_response(uint32_t action_call_id, bool success, const std::string &error_message);
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  void send_action_response(uint32_t action_call_id, bool success, const std::string &error_message,
+                            const uint8_t *response_data, size_t response_data_len);
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES
 #endif
 #ifdef USE_HOMEASSISTANT_TIME
   void request_time();
@@ -150,23 +186,34 @@ class APIServer : public Component, public Controller {
   void on_zwave_proxy_request(const esphome::api::ProtoMessage &msg);
 #endif
 
-  bool is_connected() const;
+  bool is_connected(bool state_subscription_only = false) const;
 
 #ifdef USE_API_HOMEASSISTANT_STATES
   struct HomeAssistantStateSubscription {
-    std::string entity_id;
-    optional<std::string> attribute;
+    const char *entity_id;  // Pointer to flash (internal) or heap (external)
+    const char *attribute;  // Pointer to flash or nullptr (nullptr means no attribute)
     std::function<void(std::string)> callback;
     bool once;
+
+    // Dynamic storage for external components using std::string API (custom_api_device.h)
+    // These are only allocated when using the std::string overload (nullptr for const char* overload)
+    std::unique_ptr<std::string> entity_id_dynamic_storage;
+    std::unique_ptr<std::string> attribute_dynamic_storage;
   };
 
+  // New const char* overload (for internal components - zero allocation)
+  void subscribe_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(std::string)> f);
+  void get_home_assistant_state(const char *entity_id, const char *attribute, std::function<void(std::string)> f);
+
+  // Existing std::string overload (for custom_api_device.h - heap allocation)
   void subscribe_home_assistant_state(std::string entity_id, optional<std::string> attribute,
                                       std::function<void(std::string)> f);
   void get_home_assistant_state(std::string entity_id, optional<std::string> attribute,
                                 std::function<void(std::string)> f);
+
   const std::vector<HomeAssistantStateSubscription> &get_state_subs() const;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   const std::vector<UserServiceDescriptor *> &get_user_services() const { return this->user_services_; }
 #endif
 
@@ -180,11 +227,17 @@ class APIServer : public Component, public Controller {
 #endif
 
  protected:
-  void schedule_reboot_timeout_();
 #ifdef USE_API_NOISE
   bool update_noise_psk_(const SavedNoisePsk &new_psk, const LogString *save_log_msg, const LogString *fail_log_msg,
                          const psk_t &active_psk, bool make_active);
 #endif  // USE_API_NOISE
+#ifdef USE_API_HOMEASSISTANT_STATES
+  // Helper methods to reduce code duplication
+  void add_state_subscription_(const char *entity_id, const char *attribute, std::function<void(std::string)> f,
+                               bool once);
+  void add_state_subscription_(std::string entity_id, optional<std::string> attribute,
+                               std::function<void(std::string)> f, bool once);
+#endif  // USE_API_HOMEASSISTANT_STATES
   // Pointers and pointer-like types first (4 bytes each)
   std::unique_ptr<socket::Socket> socket_ = nullptr;
 #ifdef USE_API_CLIENT_CONNECTED_TRIGGER
@@ -196,6 +249,7 @@ class APIServer : public Component, public Controller {
 
   // 4-byte aligned types
   uint32_t reboot_timeout_{300000};
+  uint32_t last_connected_{0};
 
   // Vectors and strings (12 bytes each on 32-bit)
   std::vector<std::unique_ptr<APIConnection>> clients_;
@@ -206,8 +260,19 @@ class APIServer : public Component, public Controller {
 #ifdef USE_API_HOMEASSISTANT_STATES
   std::vector<HomeAssistantStateSubscription> state_subs_;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   std::vector<UserServiceDescriptor *> user_services_;
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  // Active action calls - supports concurrent calls from multiple clients
+  // Uses server-generated action_call_id to avoid collisions when multiple clients use same call_id
+  struct ActiveActionCall {
+    uint32_t action_call_id;  // Server-generated unique ID (passed to actions)
+    uint32_t client_call_id;  // Client's original call_id (used in response)
+    APIConnection *connection;
+  };
+  std::vector<ActiveActionCall> active_action_calls_;
+  uint32_t next_action_call_id_{1};  // Counter for generating unique action_call_ids
+#endif                               // USE_API_USER_DEFINED_ACTION_RESPONSES
 #endif
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES
   struct PendingActionResponse {
@@ -228,7 +293,7 @@ class APIServer : public Component, public Controller {
   // 7 bytes used, 1 byte padding
 
 #ifdef USE_API_NOISE
-  std::shared_ptr<APINoiseContext> noise_ctx_ = std::make_shared<APINoiseContext>();
+  APINoiseContext noise_ctx_;
   ESPPreferenceObject noise_pref_;
 #endif  // USE_API_NOISE
 };
@@ -236,8 +301,11 @@ class APIServer : public Component, public Controller {
 extern APIServer *global_api_server;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
 template<typename... Ts> class APIConnectedCondition : public Condition<Ts...> {
+  TEMPLATABLE_VALUE(bool, state_subscription_only)
  public:
-  bool check(const Ts &...x) override { return global_api_server->is_connected(); }
+  bool check(const Ts &...x) override {
+    return global_api_server->is_connected(this->state_subscription_only_.value(x...));
+  }
 };
 
 }  // namespace esphome::api

esphome/components/api/custom_api_device.h

@@ -3,12 +3,12 @@
 #include <map>
 #include "api_server.h"
 #ifdef USE_API
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 #include "user_services.h"
 #endif
 namespace esphome::api {
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 template<typename T, typename... Ts> class CustomAPIDeviceService : public UserServiceDynamic<Ts...> {
  public:
   CustomAPIDeviceService(const std::string &name, const std::array<std::string, sizeof...(Ts)> &arg_names, T *obj,
@@ -16,12 +16,15 @@ template<typename T, typename... Ts> class CustomAPIDeviceService : public UserS
       : UserServiceDynamic<Ts...>(name, arg_names), obj_(obj), callback_(callback) {}
 
  protected:
-  void execute(Ts... x) override { (this->obj_->*this->callback_)(x...); }  // NOLINT
+  // CustomAPIDevice services don't support action responses - ignore call_id and return_response
+  void execute(uint32_t /*call_id*/, bool /*return_response*/, Ts... x) override {
+    (this->obj_->*this->callback_)(x...);  // NOLINT
+  }
 
   T *obj_;
   void (T::*callback_)(Ts...);
 };
-#endif  // USE_API_SERVICES
+#endif  // USE_API_USER_DEFINED_ACTIONS
 
 class CustomAPIDevice {
  public:
@@ -49,7 +52,7 @@ class CustomAPIDevice {
    * @param name The name of the service to register.
    * @param arg_names The name of the arguments for the service, must match the arguments of the function.
    */
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   template<typename T, typename... Ts>
   void register_service(void (T::*callback)(Ts...), const std::string &name,
                         const std::array<std::string, sizeof...(Ts)> &arg_names) {
@@ -90,7 +93,7 @@ class CustomAPIDevice {
    * @param callback The member function to call when the service is triggered.
    * @param name The name of the arguments for the service, must match the arguments of the function.
    */
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   template<typename T> void register_service(void (T::*callback)(), const std::string &name) {
 #ifdef USE_API_CUSTOM_SERVICES
     auto *service = new CustomAPIDeviceService<T>(name, {}, (T *) this, callback);  // NOLINT

esphome/components/api/homeassistant_service.h

@@ -12,10 +12,17 @@
 #endif
 #include "esphome/core/automation.h"
 #include "esphome/core/helpers.h"
+#include "esphome/core/string_ref.h"
 
 namespace esphome::api {
 
 template<typename... X> class TemplatableStringValue : public TemplatableValue<std::string, X...> {
+  // Verify that const char* uses the base class STATIC_STRING optimization (no heap allocation)
+  // rather than being wrapped in a lambda. The base class constructor for const char* is more
+  // specialized than the templated constructor here, so it should be selected.
+  static_assert(std::is_constructible_v<TemplatableValue<std::string, X...>, const char *>,
+                "Base class must have const char* constructor for STATIC_STRING optimization");
+
  private:
   // Helper to convert value to string - handles the case where value is already a string
   template<typename T> static std::string value_to_string(T &&val) { return to_string(std::forward<T>(val)); }
@@ -46,23 +53,25 @@ template<typename... Ts> class TemplatableKeyValuePair {
 
   // Keys are always string literals from YAML dictionary keys (e.g., "code", "event")
   // and never templatable values or lambdas. Only the value parameter can be a lambda/template.
-  // Using pass-by-value with std::move allows optimal performance for both lvalues and rvalues.
-  template<typename T> TemplatableKeyValuePair(std::string key, T value) : key(std::move(key)), value(value) {}
+  // Using const char* avoids std::string heap allocation - keys remain in flash.
+  template<typename T> TemplatableKeyValuePair(const char *key, T value) : key(key), value(value) {}
 
-  std::string key;
+  const char *key{nullptr};
   TemplatableStringValue<Ts...> value;
 };
 
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES
 // Represents the response data from a Home Assistant action
+// Note: This class holds a StringRef to the error_message from the protobuf message.
+// The protobuf message must outlive the ActionResponse (which is guaranteed since
+// the callback is invoked synchronously while the message is on the stack).
 class ActionResponse {
  public:
-  ActionResponse(bool success, std::string error_message = "")
-      : success_(success), error_message_(std::move(error_message)) {}
+  ActionResponse(bool success, const std::string &error_message) : success_(success), error_message_(error_message) {}
 
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
-  ActionResponse(bool success, std::string error_message, const uint8_t *data, size_t data_len)
-      : success_(success), error_message_(std::move(error_message)) {
+  ActionResponse(bool success, const std::string &error_message, const uint8_t *data, size_t data_len)
+      : success_(success), error_message_(error_message) {
     if (data == nullptr || data_len == 0)
       return;
     this->json_document_ = json::parse_json(data, data_len);
@@ -70,7 +79,8 @@ class ActionResponse {
 #endif
 
   bool is_success() const { return this->success_; }
-  const std::string &get_error_message() const { return this->error_message_; }
+  // Returns reference to error message - can be implicitly converted to std::string if needed
+  const StringRef &get_error_message() const { return this->error_message_; }
 
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
   // Get data as parsed JSON object (const version returns read-only view)
@@ -79,7 +89,7 @@ class ActionResponse {
 
  protected:
   bool success_;
-  std::string error_message_;
+  StringRef error_message_;
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
   JsonDocument json_document_;
 #endif
@@ -105,14 +115,15 @@ template<typename... Ts> class HomeAssistantServiceCallAction : public Action<Ts
 
   // Keys are always string literals from the Python code generation (e.g., cg.add(var.add_data("tag_id", templ))).
   // The value parameter can be a lambda/template, but keys are never templatable.
-  template<typename K, typename V> void add_data(K &&key, V &&value) {
-    this->add_kv_(this->data_, std::forward<K>(key), std::forward<V>(value));
+  // Using const char* for keys avoids std::string heap allocation - keys remain in flash.
+  template<typename V> void add_data(const char *key, V &&value) {
+    this->add_kv_(this->data_, key, std::forward<V>(value));
   }
-  template<typename K, typename V> void add_data_template(K &&key, V &&value) {
-    this->add_kv_(this->data_template_, std::forward<K>(key), std::forward<V>(value));
+  template<typename V> void add_data_template(const char *key, V &&value) {
+    this->add_kv_(this->data_template_, key, std::forward<V>(value));
   }
-  template<typename K, typename V> void add_variable(K &&key, V &&value) {
-    this->add_kv_(this->variables_, std::forward<K>(key), std::forward<V>(value));
+  template<typename V> void add_variable(const char *key, V &&value) {
+    this->add_kv_(this->variables_, key, std::forward<V>(value));
   }
 
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES
@@ -185,10 +196,11 @@ template<typename... Ts> class HomeAssistantServiceCallAction : public Action<Ts
   }
 
  protected:
-  // Helper to add key-value pairs to FixedVectors with perfect forwarding to avoid copies
-  template<typename K, typename V> void add_kv_(FixedVector<TemplatableKeyValuePair<Ts...>> &vec, K &&key, V &&value) {
+  // Helper to add key-value pairs to FixedVectors
+  // Keys are always string literals (const char*), values can be lambdas/templates
+  template<typename V> void add_kv_(FixedVector<TemplatableKeyValuePair<Ts...>> &vec, const char *key, V &&value) {
     auto &kv = vec.emplace_back();
-    kv.key = std::forward<K>(key);
+    kv.key = key;
     kv.value = std::forward<V>(value);
   }
 

esphome/components/api/list_entities.cpp

@@ -5,6 +5,9 @@
 #include "esphome/core/application.h"
 #include "esphome/core/log.h"
 #include "esphome/core/util.h"
+#ifdef USE_API_USER_DEFINED_ACTIONS
+#include "user_services.h"
+#endif
 
 namespace esphome::api {
 
@@ -82,7 +85,7 @@ bool ListEntitiesIterator::on_end() { return this->client_->send_list_info_done(
 
 ListEntitiesIterator::ListEntitiesIterator(APIConnection *client) : client_(client) {}
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 bool ListEntitiesIterator::on_service(UserServiceDescriptor *service) {
   auto resp = service->encode_list_service_response();
   return this->client_->send_message(resp, ListEntitiesServicesResponse::MESSAGE_TYPE);

esphome/components/api/list_entities.h

@@ -43,7 +43,7 @@ class ListEntitiesIterator : public ComponentIterator {
 #ifdef USE_TEXT_SENSOR
   bool on_text_sensor(text_sensor::TextSensor *entity) override;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   bool on_service(UserServiceDescriptor *service) override;
 #endif
 #ifdef USE_CAMERA

esphome/components/api/proto.h

@@ -846,7 +846,7 @@ class ProtoService {
    */
   virtual ProtoWriteBuffer create_buffer(uint32_t reserve_size) = 0;
   virtual bool send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) = 0;
-  virtual void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) = 0;
+  virtual void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) = 0;
 
   // Optimized method that pre-allocates buffer based on message size
   bool send_message_(const ProtoMessage &msg, uint8_t message_type) {

esphome/components/api/user_services.h

@@ -1,20 +1,31 @@
 #pragma once
 
+#include <tuple>
 #include <utility>
 #include <vector>
 
-#include "esphome/core/component.h"
-#include "esphome/core/automation.h"
 #include "api_pb2.h"
+#include "esphome/core/automation.h"
+#include "esphome/core/component.h"
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+#include "esphome/components/json/json_util.h"
+#endif
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 namespace esphome::api {
 
+// Forward declaration - full definition in api_server.h
+class APIServer;
+
 class UserServiceDescriptor {
  public:
   virtual ListEntitiesServicesResponse encode_list_service_response() = 0;
 
   virtual bool execute_service(const ExecuteServiceRequest &req) = 0;
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  // Overload that accepts server-generated action_call_id (avoids client call_id collisions)
+  virtual bool execute_service(const ExecuteServiceRequest &req, uint32_t action_call_id) = 0;
+#endif
 
   bool is_internal() { return false; }
 };
@@ -27,8 +38,9 @@ template<typename T> enums::ServiceArgType to_service_arg_type();
 // Stores only pointers to string literals in flash - no heap allocation
 template<typename... Ts> class UserServiceBase : public UserServiceDescriptor {
  public:
-  UserServiceBase(const char *name, const std::array<const char *, sizeof...(Ts)> &arg_names)
-      : name_(name), arg_names_(arg_names) {
+  UserServiceBase(const char *name, const std::array<const char *, sizeof...(Ts)> &arg_names,
+                  enums::SupportsResponseType supports_response = enums::SUPPORTS_RESPONSE_NONE)
+      : name_(name), arg_names_(arg_names), supports_response_(supports_response) {
     this->key_ = fnv1_hash(name);
   }
 
@@ -36,6 +48,7 @@ template<typename... Ts> class UserServiceBase : public UserServiceDescriptor {
     ListEntitiesServicesResponse msg;
     msg.set_name(StringRef(this->name_));
     msg.key = this->key_;
+    msg.supports_response = this->supports_response_;
     std::array<enums::ServiceArgType, sizeof...(Ts)> arg_types = {to_service_arg_type<Ts>()...};
     msg.args.init(sizeof...(Ts));
     for (size_t i = 0; i < sizeof...(Ts); i++) {
@@ -51,20 +64,37 @@ template<typename... Ts> class UserServiceBase : public UserServiceDescriptor {
       return false;
     if (req.args.size() != sizeof...(Ts))
       return false;
-    this->execute_(req.args, typename gens<sizeof...(Ts)>::type());
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+    this->execute_(req.args, req.call_id, req.return_response, std::make_index_sequence<sizeof...(Ts)>{});
+#else
+    this->execute_(req.args, 0, false, std::make_index_sequence<sizeof...(Ts)>{});
+#endif
     return true;
   }
 
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  bool execute_service(const ExecuteServiceRequest &req, uint32_t action_call_id) override {
+    if (req.key != this->key_)
+      return false;
+    if (req.args.size() != sizeof...(Ts))
+      return false;
+    this->execute_(req.args, action_call_id, req.return_response, std::make_index_sequence<sizeof...(Ts)>{});
+    return true;
+  }
+#endif
+
  protected:
-  virtual void execute(Ts... x) = 0;
-  template<typename ArgsContainer, int... S> void execute_(const ArgsContainer &args, seq<S...> type) {
-    this->execute((get_execute_arg_value<Ts>(args[S]))...);
+  virtual void execute(uint32_t call_id, bool return_response, Ts... x) = 0;
+  template<typename ArgsContainer, size_t... S>
+  void execute_(const ArgsContainer &args, uint32_t call_id, bool return_response, std::index_sequence<S...> /*type*/) {
+    this->execute(call_id, return_response, (get_execute_arg_value<Ts>(args[S]))...);
   }
 
   // Pointers to string literals in flash - no heap allocation
   const char *name_;
   std::array<const char *, sizeof...(Ts)> arg_names_;
   uint32_t key_{0};
+  enums::SupportsResponseType supports_response_{enums::SUPPORTS_RESPONSE_NONE};
 };
 
 // Separate class for custom_api_device services (rare case)
@@ -80,6 +110,7 @@ template<typename... Ts> class UserServiceDynamic : public UserServiceDescriptor
     ListEntitiesServicesResponse msg;
     msg.set_name(StringRef(this->name_));
     msg.key = this->key_;
+    msg.supports_response = enums::SUPPORTS_RESPONSE_NONE;  // Dynamic services don't support responses yet
     std::array<enums::ServiceArgType, sizeof...(Ts)> arg_types = {to_service_arg_type<Ts>()...};
     msg.args.init(sizeof...(Ts));
     for (size_t i = 0; i < sizeof...(Ts); i++) {
@@ -95,14 +126,31 @@ template<typename... Ts> class UserServiceDynamic : public UserServiceDescriptor
       return false;
     if (req.args.size() != sizeof...(Ts))
       return false;
-    this->execute_(req.args, typename gens<sizeof...(Ts)>::type());
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+    this->execute_(req.args, req.call_id, req.return_response, std::make_index_sequence<sizeof...(Ts)>{});
+#else
+    this->execute_(req.args, 0, false, std::make_index_sequence<sizeof...(Ts)>{});
+#endif
     return true;
   }
 
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+  // Dynamic services don't support responses yet, but need to implement the interface
+  bool execute_service(const ExecuteServiceRequest &req, uint32_t action_call_id) override {
+    if (req.key != this->key_)
+      return false;
+    if (req.args.size() != sizeof...(Ts))
+      return false;
+    this->execute_(req.args, action_call_id, req.return_response, std::make_index_sequence<sizeof...(Ts)>{});
+    return true;
+  }
+#endif
+
  protected:
-  virtual void execute(Ts... x) = 0;
-  template<typename ArgsContainer, int... S> void execute_(const ArgsContainer &args, seq<S...> type) {
-    this->execute((get_execute_arg_value<Ts>(args[S]))...);
+  virtual void execute(uint32_t call_id, bool return_response, Ts... x) = 0;
+  template<typename ArgsContainer, size_t... S>
+  void execute_(const ArgsContainer &args, uint32_t call_id, bool return_response, std::index_sequence<S...> /*type*/) {
+    this->execute(call_id, return_response, (get_execute_arg_value<Ts>(args[S]))...);
   }
 
   // Heap-allocated strings for runtime-generated names
@@ -111,15 +159,149 @@ template<typename... Ts> class UserServiceDynamic : public UserServiceDescriptor
   uint32_t key_{0};
 };
 
-template<typename... Ts> class UserServiceTrigger : public UserServiceBase<Ts...>, public Trigger<Ts...> {
+// Primary template declaration
+template<enums::SupportsResponseType Mode, typename... Ts> class UserServiceTrigger;
+
+// Specialization for NONE - no extra trigger arguments
+template<typename... Ts>
+class UserServiceTrigger<enums::SUPPORTS_RESPONSE_NONE, Ts...> : public UserServiceBase<Ts...>, public Trigger<Ts...> {
  public:
-  // Constructor for static names (YAML-defined services - used by code generator)
   UserServiceTrigger(const char *name, const std::array<const char *, sizeof...(Ts)> &arg_names)
-      : UserServiceBase<Ts...>(name, arg_names) {}
+      : UserServiceBase<Ts...>(name, arg_names, enums::SUPPORTS_RESPONSE_NONE) {}
 
  protected:
-  void execute(Ts... x) override { this->trigger(x...); }  // NOLINT
+  void execute(uint32_t /*call_id*/, bool /*return_response*/, Ts... x) override { this->trigger(x...); }
+};
+
+// Specialization for OPTIONAL - call_id and return_response trigger arguments
+template<typename... Ts>
+class UserServiceTrigger<enums::SUPPORTS_RESPONSE_OPTIONAL, Ts...> : public UserServiceBase<Ts...>,
+                                                                     public Trigger<uint32_t, bool, Ts...> {
+ public:
+  UserServiceTrigger(const char *name, const std::array<const char *, sizeof...(Ts)> &arg_names)
+      : UserServiceBase<Ts...>(name, arg_names, enums::SUPPORTS_RESPONSE_OPTIONAL) {}
+
+ protected:
+  void execute(uint32_t call_id, bool return_response, Ts... x) override {
+    this->trigger(call_id, return_response, x...);
+  }
+};
+
+// Specialization for ONLY - just call_id trigger argument
+template<typename... Ts>
+class UserServiceTrigger<enums::SUPPORTS_RESPONSE_ONLY, Ts...> : public UserServiceBase<Ts...>,
+                                                                 public Trigger<uint32_t, Ts...> {
+ public:
+  UserServiceTrigger(const char *name, const std::array<const char *, sizeof...(Ts)> &arg_names)
+      : UserServiceBase<Ts...>(name, arg_names, enums::SUPPORTS_RESPONSE_ONLY) {}
+
+ protected:
+  void execute(uint32_t call_id, bool /*return_response*/, Ts... x) override { this->trigger(call_id, x...); }
+};
+
+// Specialization for STATUS - just call_id trigger argument (reports success/error without data)
+template<typename... Ts>
+class UserServiceTrigger<enums::SUPPORTS_RESPONSE_STATUS, Ts...> : public UserServiceBase<Ts...>,
+                                                                   public Trigger<uint32_t, Ts...> {
+ public:
+  UserServiceTrigger(const char *name, const std::array<const char *, sizeof...(Ts)> &arg_names)
+      : UserServiceBase<Ts...>(name, arg_names, enums::SUPPORTS_RESPONSE_STATUS) {}
+
+ protected:
+  void execute(uint32_t call_id, bool /*return_response*/, Ts... x) override { this->trigger(call_id, x...); }
 };
 
 }  // namespace esphome::api
-#endif  // USE_API_SERVICES
+#endif  // USE_API_USER_DEFINED_ACTIONS
+
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
+// Include full definition of APIServer for template implementation
+// Must be outside namespace to avoid including STL headers inside namespace
+#include "api_server.h"
+
+namespace esphome::api {
+
+template<typename... Ts> class APIRespondAction : public Action<Ts...> {
+ public:
+  explicit APIRespondAction(APIServer *parent) : parent_(parent) {}
+
+  template<typename V> void set_success(V success) { this->success_ = success; }
+  template<typename V> void set_error_message(V error) { this->error_message_ = error; }
+  void set_is_optional_mode(bool is_optional) { this->is_optional_mode_ = is_optional; }
+
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  void set_data(std::function<void(Ts..., JsonObject)> func) {
+    this->json_builder_ = std::move(func);
+    this->has_data_ = true;
+  }
+#endif
+
+  void play(const Ts &...x) override {
+    // Extract call_id from first argument - it's always first for optional/only/status modes
+    auto args = std::make_tuple(x...);
+    uint32_t call_id = std::get<0>(args);
+
+    bool success = this->success_.value(x...);
+    std::string error_message = this->error_message_.value(x...);
+
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+    if (this->has_data_) {
+      // For optional mode, check return_response (second arg) to decide if client wants data
+      // Use nested if constexpr to avoid compile error when tuple doesn't have enough elements
+      // (std::tuple_element_t is evaluated before the && short-circuit, so we must nest)
+      if constexpr (sizeof...(Ts) >= 2) {
+        if constexpr (std::is_same_v<std::tuple_element_t<1, std::tuple<Ts...>>, bool>) {
+          if (this->is_optional_mode_) {
+            bool return_response = std::get<1>(args);
+            if (!return_response) {
+              // Client doesn't want response data, just send success/error
+              this->parent_->send_action_response(call_id, success, error_message);
+              return;
+            }
+          }
+        }
+      }
+      // Build and send JSON response
+      json::JsonBuilder builder;
+      this->json_builder_(x..., builder.root());
+      std::string json_str = builder.serialize();
+      this->parent_->send_action_response(call_id, success, error_message,
+                                          reinterpret_cast<const uint8_t *>(json_str.data()), json_str.size());
+      return;
+    }
+#endif
+    this->parent_->send_action_response(call_id, success, error_message);
+  }
+
+ protected:
+  APIServer *parent_;
+  TemplatableValue<bool, Ts...> success_{true};
+  TemplatableValue<std::string, Ts...> error_message_{""};
+#ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
+  std::function<void(Ts..., JsonObject)> json_builder_;
+  bool has_data_{false};
+#endif
+  bool is_optional_mode_{false};
+};
+
+// Action to unregister a service call after execution completes
+// Automatically appended to the end of action lists for non-none response modes
+template<typename... Ts> class APIUnregisterServiceCallAction : public Action<Ts...> {
+ public:
+  explicit APIUnregisterServiceCallAction(APIServer *parent) : parent_(parent) {}
+
+  void play(const Ts &...x) override {
+    // Extract call_id from first argument - same convention as APIRespondAction
+    auto args = std::make_tuple(x...);
+    uint32_t call_id = std::get<0>(args);
+    if (call_id != 0) {
+      this->parent_->unregister_active_action_call(call_id);
+    }
+  }
+
+ protected:
+  APIServer *parent_;
+};
+
+}  // namespace esphome::api
+#endif  // USE_API_USER_DEFINED_ACTION_RESPONSES

esphome/components/bedjet/climate/__init__.py

@@ -44,7 +44,7 @@ CONFIG_SCHEMA = (
             cv.Optional(ble_client.CONF_BLE_CLIENT_ID): cv.invalid(
                 "The 'ble_client_id' option has been removed. Please migrate "
                 "to the new `bedjet_id` option in the `bedjet` component.\n"
-                "See https://esphome.io/components/climate/bedjet.html"
+                "See https://esphome.io/components/climate/bedjet/"
             ),
             cv.Optional(CONF_TIME_ID): cv.invalid(
                 "The 'time_id' option has been moved to the `bedjet` component."

esphome/components/bh1900nux/bh1900nux.cpp

@@ -23,7 +23,7 @@ void BH1900NUXSensor::setup() {
   i2c::ErrorCode result_code =
       this->write_register(SOFT_RESET_REG, &SOFT_RESET_PAYLOAD, 1);  // Software Reset to check communication
   if (result_code != i2c::ERROR_OK) {
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
 }

esphome/components/binary_sensor/automation.cpp

@@ -1,12 +1,11 @@
 #include "automation.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 static const char *const TAG = "binary_sensor.automation";
 
-void binary_sensor::MultiClickTrigger::on_state_(bool state) {
+void MultiClickTrigger::on_state_(bool state) {
   // Handle duplicate events
   if (state == this->last_state_) {
     return;
@@ -67,7 +66,7 @@ void binary_sensor::MultiClickTrigger::on_state_(bool state) {
 
   *this->at_index_ = *this->at_index_ + 1;
 }
-void binary_sensor::MultiClickTrigger::schedule_cooldown_() {
+void MultiClickTrigger::schedule_cooldown_() {
   ESP_LOGV(TAG, "Multi Click: Invalid length of press, starting cooldown of %" PRIu32 " ms", this->invalid_cooldown_);
   this->is_in_cooldown_ = true;
   this->set_timeout("cooldown", this->invalid_cooldown_, [this]() {
@@ -79,7 +78,7 @@ void binary_sensor::MultiClickTrigger::schedule_cooldown_() {
   this->cancel_timeout("is_valid");
   this->cancel_timeout("is_not_valid");
 }
-void binary_sensor::MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
+void MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
   if (min_length == 0) {
     this->is_valid_ = true;
     return;
@@ -90,19 +89,19 @@ void binary_sensor::MultiClickTrigger::schedule_is_valid_(uint32_t min_length) {
     this->is_valid_ = true;
   });
 }
-void binary_sensor::MultiClickTrigger::schedule_is_not_valid_(uint32_t max_length) {
+void MultiClickTrigger::schedule_is_not_valid_(uint32_t max_length) {
   this->set_timeout("is_not_valid", max_length, [this]() {
     ESP_LOGV(TAG, "Multi Click: You waited too long to %s.", this->parent_->state ? "RELEASE" : "PRESS");
     this->is_valid_ = false;
     this->schedule_cooldown_();
   });
 }
-void binary_sensor::MultiClickTrigger::cancel() {
+void MultiClickTrigger::cancel() {
   ESP_LOGV(TAG, "Multi Click: Sequence explicitly cancelled.");
   this->is_valid_ = false;
   this->schedule_cooldown_();
 }
-void binary_sensor::MultiClickTrigger::trigger_() {
+void MultiClickTrigger::trigger_() {
   ESP_LOGV(TAG, "Multi Click: Hooray, multi click is valid. Triggering!");
   this->at_index_.reset();
   this->cancel_timeout("trigger");
@@ -118,5 +117,4 @@ bool match_interval(uint32_t min_length, uint32_t max_length, uint32_t length) {
     return length >= min_length && length <= max_length;
   }
 }
-}  // namespace binary_sensor
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/automation.h

@@ -9,8 +9,7 @@
 #include "esphome/core/helpers.h"
 #include "esphome/components/binary_sensor/binary_sensor.h"
 
-namespace esphome {
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 struct MultiClickTriggerEvent {
   bool state;
@@ -172,5 +171,4 @@ template<typename... Ts> class BinarySensorInvalidateAction : public Action<Ts..
   BinarySensor *sensor_;
 };
 
-}  // namespace binary_sensor
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/binary_sensor.cpp

@@ -3,9 +3,7 @@
 #include "esphome/core/controller_registry.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 static const char *const TAG = "binary_sensor";
 
@@ -36,13 +34,20 @@ void BinarySensor::publish_initial_state(bool new_state) {
 void BinarySensor::send_state_internal(bool new_state) {
   // copy the new state to the visible property for backwards compatibility, before any callbacks
   this->state = new_state;
-  // Note that set_state_ de-dups and will only trigger callbacks if the state has actually changed
-  if (this->set_state_(new_state)) {
-    ESP_LOGD(TAG, "'%s': New state is %s", this->get_name().c_str(), ONOFF(new_state));
+  // Note that set_new_state_ de-dups and will only trigger callbacks if the state has actually changed
+  this->set_new_state(new_state);
+}
+
+bool BinarySensor::set_new_state(const optional<bool> &new_state) {
+  if (StatefulEntityBase::set_new_state(new_state)) {
+    // weirdly, this file could be compiled even without USE_BINARY_SENSOR defined
 #if defined(USE_BINARY_SENSOR) && defined(USE_CONTROLLER_REGISTRY)
     ControllerRegistry::notify_binary_sensor_update(this);
 #endif
+    ESP_LOGD(TAG, "'%s': %s", this->get_name().c_str(), ONOFFMAYBE(new_state));
+    return true;
   }
+  return false;
 }
 
 void BinarySensor::add_filter(Filter *filter) {
@@ -63,6 +68,4 @@ void BinarySensor::add_filters(std::initializer_list<Filter *> filters) {
 }
 bool BinarySensor::is_status_binary_sensor() const { return false; }
 
-}  // namespace binary_sensor
-
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/binary_sensor.h

@@ -6,9 +6,7 @@
 
 #include <initializer_list>
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 class BinarySensor;
 void log_binary_sensor(const char *tag, const char *prefix, const char *type, BinarySensor *obj);
@@ -63,6 +61,8 @@ class BinarySensor : public StatefulEntityBase<bool>, public EntityBase_DeviceCl
 
  protected:
   Filter *filter_list_{nullptr};
+
+  bool set_new_state(const optional<bool> &new_state) override;
 };
 
 class BinarySensorInitiallyOff : public BinarySensor {
@@ -70,5 +70,4 @@ class BinarySensorInitiallyOff : public BinarySensor {
   bool has_state() const override { return true; }
 };
 
-}  // namespace binary_sensor
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/filter.cpp

@@ -2,9 +2,7 @@
 
 #include "binary_sensor.h"
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 static const char *const TAG = "sensor.filter";
 
@@ -132,6 +130,4 @@ optional<bool> SettleFilter::new_value(bool value) {
 
 float SettleFilter::get_setup_priority() const { return setup_priority::HARDWARE; }
 
-}  // namespace binary_sensor
-
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/binary_sensor/filter.h

@@ -4,9 +4,7 @@
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
 
-namespace esphome {
-
-namespace binary_sensor {
+namespace esphome::binary_sensor {
 
 class BinarySensor;
 
@@ -139,6 +137,4 @@ class SettleFilter : public Filter, public Component {
   bool steady_{true};
 };
 
-}  // namespace binary_sensor
-
-}  // namespace esphome
+}  // namespace esphome::binary_sensor

esphome/components/ble_client/automation.cpp

@@ -2,12 +2,10 @@
 
 #include "automation.h"
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 const char *const Automation::TAG = "ble_client.automation";
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 
 #endif

esphome/components/ble_client/automation.h

@@ -9,8 +9,7 @@
 #include "esphome/components/ble_client/ble_client.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 // placeholder class for static TAG .
 class Automation {
@@ -122,16 +121,19 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
   void play_complex(const Ts &...x) override {
     this->num_running_++;
     this->var_ = std::make_tuple(x...);
-    std::vector<uint8_t> value;
+
+    bool result;
     if (this->len_ >= 0) {
-      // Static mode: copy from flash to vector
-      value.assign(this->value_.data, this->value_.data + this->len_);
+      // Static mode: write directly from flash pointer
+      result = this->write(this->value_.data, this->len_);
     } else {
-      // Template mode: call function
-      value = this->value_.func(x...);
+      // Template mode: call function and write the vector
+      std::vector<uint8_t> value = this->value_.func(x...);
+      result = this->write(value);
     }
+
     // on write failure, continue the automation chain rather than stopping so that e.g. disconnect can work.
-    if (!write(value))
+    if (!result)
       this->play_next_(x...);
   }
 
@@ -144,15 +146,15 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
    * errors.
    */
   // initiate the write. Return true if all went well, will be followed by a WRITE_CHAR event.
-  bool write(const std::vector<uint8_t> &value) {
+  bool write(const uint8_t *data, size_t len) {
     if (this->node_state != espbt::ClientState::ESTABLISHED) {
       esph_log_w(Automation::TAG, "Cannot write to BLE characteristic - not connected");
       return false;
     }
-    esph_log_vv(Automation::TAG, "Will write %d bytes: %s", value.size(), format_hex_pretty(value).c_str());
-    esp_err_t err = esp_ble_gattc_write_char(this->parent()->get_gattc_if(), this->parent()->get_conn_id(),
-                                             this->char_handle_, value.size(), const_cast<uint8_t *>(value.data()),
-                                             this->write_type_, ESP_GATT_AUTH_REQ_NONE);
+    esph_log_vv(Automation::TAG, "Will write %d bytes: %s", len, format_hex_pretty(data, len).c_str());
+    esp_err_t err =
+        esp_ble_gattc_write_char(this->parent()->get_gattc_if(), this->parent()->get_conn_id(), this->char_handle_, len,
+                                 const_cast<uint8_t *>(data), this->write_type_, ESP_GATT_AUTH_REQ_NONE);
     if (err != ESP_OK) {
       esph_log_e(Automation::TAG, "Error writing to characteristic: %s!", esp_err_to_name(err));
       return false;
@@ -160,6 +162,8 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
     return true;
   }
 
+  bool write(const std::vector<uint8_t> &value) { return this->write(value.data(), value.size()); }
+
   void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
                            esp_ble_gattc_cb_param_t *param) override {
     switch (event) {
@@ -193,7 +197,7 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
         }
         this->node_state = espbt::ClientState::ESTABLISHED;
         esph_log_d(Automation::TAG, "Found characteristic %s on device %s", this->char_uuid_.to_string().c_str(),
-                   ble_client_->address_str().c_str());
+                   ble_client_->address_str());
         break;
       }
       default:
@@ -386,7 +390,6 @@ template<typename... Ts> class BLEClientDisconnectAction : public Action<Ts...>,
   BLEClient *ble_client_;
   std::tuple<Ts...> var_{};
 };
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 
 #endif

esphome/components/ble_client/ble_client.cpp

@@ -7,8 +7,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 static const char *const TAG = "ble_client";
 
@@ -39,7 +38,7 @@ void BLEClient::set_enabled(bool enabled) {
     return;
   this->enabled = enabled;
   if (!enabled) {
-    ESP_LOGI(TAG, "[%s] Disabling BLE client.", this->address_str().c_str());
+    ESP_LOGI(TAG, "[%s] Disabling BLE client.", this->address_str());
     this->disconnect();
   }
 }
@@ -82,7 +81,6 @@ bool BLEClient::all_nodes_established_() {
   return true;
 }
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 
 #endif

esphome/components/ble_client/ble_client.h

@@ -15,8 +15,7 @@
 #include <string>
 #include <vector>
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 namespace espbt = esphome::esp32_ble_tracker;
 
@@ -75,7 +74,6 @@ class BLEClient : public BLEClientBase {
   std::vector<BLEClientNode *> nodes_;
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 
 #endif

esphome/components/ble_client/output/ble_binary_output.cpp

@@ -3,8 +3,7 @@
 #include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
 
 #ifdef USE_ESP32
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 static const char *const TAG = "ble_binary_output";
 
@@ -14,7 +13,7 @@ void BLEBinaryOutput::dump_config() {
                 "  MAC address        : %s\n"
                 "  Service UUID       : %s\n"
                 "  Characteristic UUID: %s",
-                this->parent_->address_str().c_str(), this->service_uuid_.to_string().c_str(),
+                this->parent_->address_str(), this->service_uuid_.to_string().c_str(),
                 this->char_uuid_.to_string().c_str());
   LOG_BINARY_OUTPUT(this);
 }
@@ -44,7 +43,7 @@ void BLEBinaryOutput::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_i
       }
       this->node_state = espbt::ClientState::ESTABLISHED;
       ESP_LOGD(TAG, "Found characteristic %s on device %s", this->char_uuid_.to_string().c_str(),
-               this->parent()->address_str().c_str());
+               this->parent()->address_str());
       this->node_state = espbt::ClientState::ESTABLISHED;
       break;
     }
@@ -75,6 +74,5 @@ void BLEBinaryOutput::write_state(bool state) {
     ESP_LOGW(TAG, "[%s] Write error, err=%d", this->char_uuid_.to_string().c_str(), err);
 }
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/output/ble_binary_output.h

@@ -7,8 +7,7 @@
 
 #ifdef USE_ESP32
 #include <esp_gattc_api.h>
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 namespace espbt = esphome::esp32_ble_tracker;
 
@@ -36,7 +35,6 @@ class BLEBinaryOutput : public output::BinaryOutput, public BLEClientNode, publi
   esp_gatt_write_type_t write_type_{};
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 
 #endif

esphome/components/ble_client/sensor/automation.h

@@ -5,8 +5,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 class BLESensorNotifyTrigger : public Trigger<float>, public BLESensor {
  public:
@@ -35,7 +34,6 @@ class BLESensorNotifyTrigger : public Trigger<float>, public BLESensor {
   BLESensor *sensor_;
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 
 #endif

esphome/components/ble_client/sensor/ble_rssi_sensor.cpp

@@ -6,8 +6,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 static const char *const TAG = "ble_rssi_sensor";
 
@@ -19,7 +18,7 @@ void BLEClientRSSISensor::loop() {
 
 void BLEClientRSSISensor::dump_config() {
   LOG_SENSOR("", "BLE Client RSSI Sensor", this);
-  ESP_LOGCONFIG(TAG, "  MAC address        : %s", this->parent()->address_str().c_str());
+  ESP_LOGCONFIG(TAG, "  MAC address        : %s", this->parent()->address_str());
   LOG_UPDATE_INTERVAL(this);
 }
 
@@ -69,15 +68,14 @@ void BLEClientRSSISensor::update() {
   this->get_rssi_();
 }
 void BLEClientRSSISensor::get_rssi_() {
-  ESP_LOGV(TAG, "requesting rssi from %s", this->parent()->address_str().c_str());
+  ESP_LOGV(TAG, "requesting rssi from %s", this->parent()->address_str());
   auto status = esp_ble_gap_read_rssi(this->parent()->get_remote_bda());
   if (status != ESP_OK) {
-    ESP_LOGW(TAG, "esp_ble_gap_read_rssi error, address=%s, status=%d", this->parent()->address_str().c_str(), status);
+    ESP_LOGW(TAG, "esp_ble_gap_read_rssi error, address=%s, status=%d", this->parent()->address_str(), status);
     this->status_set_warning();
     this->publish_state(NAN);
   }
 }
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/sensor/ble_rssi_sensor.h

@@ -8,8 +8,7 @@
 #ifdef USE_ESP32
 #include <esp_gattc_api.h>
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 namespace espbt = esphome::esp32_ble_tracker;
 
@@ -29,6 +28,5 @@ class BLEClientRSSISensor : public sensor::Sensor, public PollingComponent, publ
   bool should_update_{false};
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/sensor/ble_sensor.cpp

@@ -6,8 +6,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 static const char *const TAG = "ble_sensor";
 
@@ -25,7 +24,7 @@ void BLESensor::dump_config() {
                 "  Characteristic UUID: %s\n"
                 "  Descriptor UUID    : %s\n"
                 "  Notifications      : %s",
-                this->parent()->address_str().c_str(), this->service_uuid_.to_string().c_str(),
+                this->parent()->address_str(), this->service_uuid_.to_string().c_str(),
                 this->char_uuid_.to_string().c_str(), this->descr_uuid_.to_string().c_str(), YESNO(this->notify_));
   LOG_UPDATE_INTERVAL(this);
 }
@@ -147,6 +146,5 @@ void BLESensor::update() {
   }
 }
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/sensor/ble_sensor.h

@@ -10,8 +10,7 @@
 #ifdef USE_ESP32
 #include <esp_gattc_api.h>
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 namespace espbt = esphome::esp32_ble_tracker;
 
@@ -48,6 +47,5 @@ class BLESensor : public sensor::Sensor, public PollingComponent, public BLEClie
   espbt::ESPBTUUID descr_uuid_;
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/switch/ble_switch.cpp

@@ -4,8 +4,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 static const char *const TAG = "ble_switch";
 
@@ -31,6 +30,5 @@ void BLEClientSwitch::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_i
 
 void BLEClientSwitch::dump_config() { LOG_SWITCH("", "BLE Client Switch", this); }
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/switch/ble_switch.h

@@ -8,8 +8,7 @@
 #ifdef USE_ESP32
 #include <esp_gattc_api.h>
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 namespace espbt = esphome::esp32_ble_tracker;
 
@@ -24,6 +23,5 @@ class BLEClientSwitch : public switch_::Switch, public Component, public BLEClie
   void write_state(bool state) override;
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/text_sensor/automation.h

@@ -5,8 +5,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 class BLETextSensorNotifyTrigger : public Trigger<std::string>, public BLETextSensor {
  public:
@@ -33,7 +32,6 @@ class BLETextSensorNotifyTrigger : public Trigger<std::string>, public BLETextSe
   BLETextSensor *sensor_;
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 
 #endif

esphome/components/ble_client/text_sensor/ble_text_sensor.cpp

@@ -7,8 +7,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 static const char *const TAG = "ble_text_sensor";
 
@@ -28,7 +27,7 @@ void BLETextSensor::dump_config() {
                 "  Characteristic UUID: %s\n"
                 "  Descriptor UUID    : %s\n"
                 "  Notifications      : %s",
-                this->parent()->address_str().c_str(), this->service_uuid_.to_string().c_str(),
+                this->parent()->address_str(), this->service_uuid_.to_string().c_str(),
                 this->char_uuid_.to_string().c_str(), this->descr_uuid_.to_string().c_str(), YESNO(this->notify_));
   LOG_UPDATE_INTERVAL(this);
 }
@@ -138,6 +137,5 @@ void BLETextSensor::update() {
   }
 }
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_client/text_sensor/ble_text_sensor.h

@@ -8,8 +8,7 @@
 #ifdef USE_ESP32
 #include <esp_gattc_api.h>
 
-namespace esphome {
-namespace ble_client {
+namespace esphome::ble_client {
 
 namespace espbt = esphome::esp32_ble_tracker;
 
@@ -40,6 +39,5 @@ class BLETextSensor : public text_sensor::TextSensor, public PollingComponent, p
   espbt::ESPBTUUID descr_uuid_;
 };
 
-}  // namespace ble_client
-}  // namespace esphome
+}  // namespace esphome::ble_client
 #endif

esphome/components/ble_nus/ble_nus.cpp

@@ -87,17 +87,21 @@ void BLENUS::setup() {
   global_ble_nus = this;
 #ifdef USE_LOGGER
   if (logger::global_logger != nullptr && this->expose_log_) {
-    logger::global_logger->add_on_log_callback(
-        [this](int level, const char *tag, const char *message, size_t message_len) {
-          this->write_array(reinterpret_cast<const uint8_t *>(message), message_len);
-          const char c = '\n';
-          this->write_array(reinterpret_cast<const uint8_t *>(&c), 1);
-        });
+    logger::global_logger->add_log_listener(this);
   }
-
 #endif
 }
 
+#ifdef USE_LOGGER
+void BLENUS::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
+  (void) level;
+  (void) tag;
+  this->write_array(reinterpret_cast<const uint8_t *>(message), message_len);
+  const char c = '\n';
+  this->write_array(reinterpret_cast<const uint8_t *>(&c), 1);
+}
+#endif
+
 void BLENUS::dump_config() {
   ESP_LOGCONFIG(TAG, "ble nus:");
   ESP_LOGCONFIG(TAG, "  log: %s", YESNO(this->expose_log_));

esphome/components/ble_nus/ble_nus.h

@@ -2,12 +2,20 @@
 #ifdef USE_ZEPHYR
 #include "esphome/core/defines.h"
 #include "esphome/core/component.h"
+#ifdef USE_LOGGER
+#include "esphome/components/logger/logger.h"
+#endif
 #include <shell/shell_bt_nus.h>
 #include <atomic>
 
 namespace esphome::ble_nus {
 
-class BLENUS : public Component {
+class BLENUS : public Component
+#ifdef USE_LOGGER
+    ,
+               public logger::LogListener
+#endif
+{
   enum TxStatus {
     TX_DISABLED,
     TX_ENABLED,
@@ -20,6 +28,9 @@ class BLENUS : public Component {
   void loop() override;
   size_t write_array(const uint8_t *data, size_t len);
   void set_expose_log(bool expose_log) { this->expose_log_ = expose_log; }
+#ifdef USE_LOGGER
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override;
+#endif
 
  protected:
   static void send_enabled_callback(bt_nus_send_status status);

esphome/components/bluetooth_proxy/bluetooth_connection.cpp

@@ -196,8 +196,8 @@ void BluetoothConnection::send_service_for_discovery_() {
 
     if (service_status != ESP_GATT_OK || service_count == 0) {
       ESP_LOGE(TAG, "[%d] [%s] esp_ble_gattc_get_service %s, status=%d, service_count=%d, offset=%d",
-               this->connection_index_, this->address_str().c_str(),
-               service_status != ESP_GATT_OK ? "error" : "missing", service_status, service_count, this->send_service_);
+               this->connection_index_, this->address_str(), service_status != ESP_GATT_OK ? "error" : "missing",
+               service_status, service_count, this->send_service_);
       this->send_service_ = DONE_SENDING_SERVICES;
       return;
     }
@@ -312,13 +312,13 @@ void BluetoothConnection::send_service_for_discovery_() {
       if (resp.services.size() > 1) {
         resp.services.pop_back();
         ESP_LOGD(TAG, "[%d] [%s] Service %d would exceed limit (current: %d + service: %d > %d), sending current batch",
-                 this->connection_index_, this->address_str().c_str(), this->send_service_, current_size, service_size,
+                 this->connection_index_, this->address_str(), this->send_service_, current_size, service_size,
                  MAX_PACKET_SIZE);
         // Don't increment send_service_ - we'll retry this service in next batch
       } else {
         // This single service is too large, but we have to send it anyway
         ESP_LOGV(TAG, "[%d] [%s] Service %d is too large (%d bytes) but sending anyway", this->connection_index_,
-                 this->address_str().c_str(), this->send_service_, service_size);
+                 this->address_str(), this->send_service_, service_size);
         // Increment so we don't get stuck
         this->send_service_++;
       }
@@ -337,21 +337,20 @@ void BluetoothConnection::send_service_for_discovery_() {
 }
 
 void BluetoothConnection::log_connection_error_(const char *operation, esp_gatt_status_t status) {
-  ESP_LOGE(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str().c_str(), operation,
-           status);
+  ESP_LOGE(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str(), operation, status);
 }
 
 void BluetoothConnection::log_connection_warning_(const char *operation, esp_err_t err) {
-  ESP_LOGW(TAG, "[%d] [%s] %s failed, err=%d", this->connection_index_, this->address_str().c_str(), operation, err);
+  ESP_LOGW(TAG, "[%d] [%s] %s failed, err=%d", this->connection_index_, this->address_str(), operation, err);
 }
 
 void BluetoothConnection::log_gatt_not_connected_(const char *action, const char *type) {
-  ESP_LOGW(TAG, "[%d] [%s] Cannot %s GATT %s, not connected.", this->connection_index_, this->address_str().c_str(),
-           action, type);
+  ESP_LOGW(TAG, "[%d] [%s] Cannot %s GATT %s, not connected.", this->connection_index_, this->address_str(), action,
+           type);
 }
 
 void BluetoothConnection::log_gatt_operation_error_(const char *operation, uint16_t handle, esp_gatt_status_t status) {
-  ESP_LOGW(TAG, "[%d] [%s] Error %s for handle 0x%2X, status=%d", this->connection_index_, this->address_str().c_str(),
+  ESP_LOGW(TAG, "[%d] [%s] Error %s for handle 0x%2X, status=%d", this->connection_index_, this->address_str(),
            operation, handle, status);
 }
 
@@ -372,14 +371,14 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
     case ESP_GATTC_DISCONNECT_EVT: {
       // Don't reset connection yet - wait for CLOSE_EVT to ensure controller has freed resources
       // This prevents race condition where we mark slot as free before controller cleanup is complete
-      ESP_LOGD(TAG, "[%d] [%s] Disconnect, reason=0x%02x", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGD(TAG, "[%d] [%s] Disconnect, reason=0x%02x", this->connection_index_, this->address_str_,
                param->disconnect.reason);
       // Send disconnection notification but don't free the slot yet
       this->proxy_->send_device_connection(this->address_, false, 0, param->disconnect.reason);
       break;
     }
     case ESP_GATTC_CLOSE_EVT: {
-      ESP_LOGD(TAG, "[%d] [%s] Close, reason=0x%02x, freeing slot", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGD(TAG, "[%d] [%s] Close, reason=0x%02x, freeing slot", this->connection_index_, this->address_str_,
                param->close.reason);
       // Now the GATT connection is fully closed and controller resources are freed
       // Safe to mark the connection slot as available
@@ -463,7 +462,7 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
       break;
     }
     case ESP_GATTC_NOTIFY_EVT: {
-      ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_NOTIFY_EVT: handle=0x%2X", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_NOTIFY_EVT: handle=0x%2X", this->connection_index_, this->address_str_,
                param->notify.handle);
       api::BluetoothGATTNotifyDataResponse resp;
       resp.address = this->address_;
@@ -502,8 +501,7 @@ esp_err_t BluetoothConnection::read_characteristic(uint16_t handle) {
     return ESP_GATT_NOT_CONNECTED;
   }
 
-  ESP_LOGV(TAG, "[%d] [%s] Reading GATT characteristic handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Reading GATT characteristic handle %d", this->connection_index_, this->address_str_, handle);
 
   esp_err_t err = esp_ble_gattc_read_char(this->gattc_if_, this->conn_id_, handle, ESP_GATT_AUTH_REQ_NONE);
   return this->check_and_log_error_("esp_ble_gattc_read_char", err);
@@ -515,8 +513,7 @@ esp_err_t BluetoothConnection::write_characteristic(uint16_t handle, const uint8
     this->log_gatt_not_connected_("write", "characteristic");
     return ESP_GATT_NOT_CONNECTED;
   }
-  ESP_LOGV(TAG, "[%d] [%s] Writing GATT characteristic handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Writing GATT characteristic handle %d", this->connection_index_, this->address_str_, handle);
 
   // ESP-IDF's API requires a non-const uint8_t* but it doesn't modify the data
   // The BTC layer immediately copies the data to its own buffer (see btc_gattc.c)
@@ -532,8 +529,7 @@ esp_err_t BluetoothConnection::read_descriptor(uint16_t handle) {
     this->log_gatt_not_connected_("read", "descriptor");
     return ESP_GATT_NOT_CONNECTED;
   }
-  ESP_LOGV(TAG, "[%d] [%s] Reading GATT descriptor handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Reading GATT descriptor handle %d", this->connection_index_, this->address_str_, handle);
 
   esp_err_t err = esp_ble_gattc_read_char_descr(this->gattc_if_, this->conn_id_, handle, ESP_GATT_AUTH_REQ_NONE);
   return this->check_and_log_error_("esp_ble_gattc_read_char_descr", err);
@@ -544,8 +540,7 @@ esp_err_t BluetoothConnection::write_descriptor(uint16_t handle, const uint8_t *
     this->log_gatt_not_connected_("write", "descriptor");
     return ESP_GATT_NOT_CONNECTED;
   }
-  ESP_LOGV(TAG, "[%d] [%s] Writing GATT descriptor handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Writing GATT descriptor handle %d", this->connection_index_, this->address_str_, handle);
 
   // ESP-IDF's API requires a non-const uint8_t* but it doesn't modify the data
   // The BTC layer immediately copies the data to its own buffer (see btc_gattc.c)
@@ -564,13 +559,13 @@ esp_err_t BluetoothConnection::notify_characteristic(uint16_t handle, bool enabl
 
   if (enable) {
     ESP_LOGV(TAG, "[%d] [%s] Registering for GATT characteristic notifications handle %d", this->connection_index_,
-             this->address_str_.c_str(), handle);
+             this->address_str_, handle);
     esp_err_t err = esp_ble_gattc_register_for_notify(this->gattc_if_, this->remote_bda_, handle);
     return this->check_and_log_error_("esp_ble_gattc_register_for_notify", err);
   }
 
   ESP_LOGV(TAG, "[%d] [%s] Unregistering for GATT characteristic notifications handle %d", this->connection_index_,
-           this->address_str_.c_str(), handle);
+           this->address_str_, handle);
   esp_err_t err = esp_ble_gattc_unregister_for_notify(this->gattc_if_, this->remote_bda_, handle);
   return this->check_and_log_error_("esp_ble_gattc_unregister_for_notify", err);
 }

esphome/components/bluetooth_proxy/bluetooth_proxy.cpp

@@ -27,11 +27,13 @@ void BluetoothProxy::setup() {
   // Capture the configured scan mode from YAML before any API changes
   this->configured_scan_active_ = this->parent_->get_scan_active();
 
-  this->parent_->add_scanner_state_callback([this](esp32_ble_tracker::ScannerState state) {
-    if (this->api_connection_ != nullptr) {
-      this->send_bluetooth_scanner_state_(state);
-    }
-  });
+  this->parent_->add_scanner_state_listener(this);
+}
+
+void BluetoothProxy::on_scanner_state(esp32_ble_tracker::ScannerState state) {
+  if (this->api_connection_ != nullptr) {
+    this->send_bluetooth_scanner_state_(state);
+  }
 }
 
 void BluetoothProxy::send_bluetooth_scanner_state_(esp32_ble_tracker::ScannerState state) {
@@ -47,12 +49,11 @@ void BluetoothProxy::send_bluetooth_scanner_state_(esp32_ble_tracker::ScannerSta
 
 void BluetoothProxy::log_connection_request_ignored_(BluetoothConnection *connection, espbt::ClientState state) {
   ESP_LOGW(TAG, "[%d] [%s] Connection request ignored, state: %s", connection->get_connection_index(),
-           connection->address_str().c_str(), espbt::client_state_to_string(state));
+           connection->address_str(), espbt::client_state_to_string(state));
 }
 
 void BluetoothProxy::log_connection_info_(BluetoothConnection *connection, const char *message) {
-  ESP_LOGI(TAG, "[%d] [%s] Connecting %s", connection->get_connection_index(), connection->address_str().c_str(),
-           message);
+  ESP_LOGI(TAG, "[%d] [%s] Connecting %s", connection->get_connection_index(), connection->address_str(), message);
 }
 
 void BluetoothProxy::log_not_connected_gatt_(const char *action, const char *type) {
@@ -186,7 +187,7 @@ void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest
       }
       if (!msg.has_address_type) {
         ESP_LOGE(TAG, "[%d] [%s] Missing address type in connect request", connection->get_connection_index(),
-                 connection->address_str().c_str());
+                 connection->address_str());
         this->send_device_connection(msg.address, false);
         return;
       }
@@ -199,7 +200,7 @@ void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest
       } else if (connection->state() == espbt::ClientState::CONNECTING) {
         if (connection->disconnect_pending()) {
           ESP_LOGW(TAG, "[%d] [%s] Connection request while pending disconnect, cancelling pending disconnect",
-                   connection->get_connection_index(), connection->address_str().c_str());
+                   connection->get_connection_index(), connection->address_str());
           connection->cancel_pending_disconnect();
           return;
         }
@@ -339,7 +340,7 @@ void BluetoothProxy::bluetooth_gatt_send_services(const api::BluetoothGATTGetSer
     return;
   }
   if (!connection->service_count_) {
-    ESP_LOGW(TAG, "[%d] [%s] No GATT services found", connection->connection_index_, connection->address_str().c_str());
+    ESP_LOGW(TAG, "[%d] [%s] No GATT services found", connection->connection_index_, connection->address_str());
     this->send_gatt_services_done(msg.address);
     return;
   }

esphome/components/bluetooth_proxy/bluetooth_proxy.h

@@ -52,7 +52,9 @@ enum BluetoothProxySubscriptionFlag : uint32_t {
   SUBSCRIPTION_RAW_ADVERTISEMENTS = 1 << 0,
 };
 
-class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener, public Component {
+class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener,
+                             public esp32_ble_tracker::BLEScannerStateListener,
+                             public Component {
   friend class BluetoothConnection;  // Allow connection to update connections_free_response_
  public:
   BluetoothProxy();
@@ -108,6 +110,9 @@ class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener, publ
   void set_active(bool active) { this->active_ = active; }
   bool has_active() { return this->active_; }
 
+  /// BLEScannerStateListener interface
+  void on_scanner_state(esp32_ble_tracker::ScannerState state) override;
+
   uint32_t get_legacy_version() const {
     if (this->active_) {
       return LEGACY_ACTIVE_CONNECTIONS_VERSION;
@@ -130,11 +135,13 @@ class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener, publ
     return flags;
   }
 
-  std::string get_bluetooth_mac_address_pretty() {
+  void get_bluetooth_mac_address_pretty(std::span<char, 18> output) {
     const uint8_t *mac = esp_bt_dev_get_address();
-    char buf[18];
-    format_mac_addr_upper(mac, buf);
-    return std::string(buf);
+    if (mac != nullptr) {
+      format_mac_addr_upper(mac, output.data());
+    } else {
+      output[0] = '\0';
+    }
   }
 
  protected:

esphome/components/bm8563/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@abmantis"]

esphome/components/bm8563/bm8563.cpp

@@ -0,0 +1,198 @@
+#include "bm8563.h"
+#include "esphome/core/log.h"
+
+namespace esphome::bm8563 {
+
+static const char *const TAG = "bm8563";
+
+static constexpr uint8_t CONTROL_STATUS_1_REG = 0x00;
+static constexpr uint8_t CONTROL_STATUS_2_REG = 0x01;
+static constexpr uint8_t TIME_FIRST_REG = 0x02;  // Time uses reg 2, 3, 4
+static constexpr uint8_t DATE_FIRST_REG = 0x05;  // Date uses reg 5, 6, 7, 8
+static constexpr uint8_t TIMER_CONTROL_REG = 0x0E;
+static constexpr uint8_t TIMER_VALUE_REG = 0x0F;
+static constexpr uint8_t CLOCK_1_HZ = 0x82;
+static constexpr uint8_t CLOCK_1_60_HZ = 0x83;
+// Maximum duration: 255 minutes (at 1/60 Hz) = 15300 seconds
+static constexpr uint32_t MAX_TIMER_DURATION_S = 255 * 60;
+
+void BM8563::setup() {
+  if (!this->write_byte_16(CONTROL_STATUS_1_REG, 0)) {
+    this->mark_failed();
+    return;
+  }
+}
+
+void BM8563::update() { this->read_time(); }
+
+void BM8563::dump_config() {
+  ESP_LOGCONFIG(TAG, "BM8563:");
+  LOG_I2C_DEVICE(this);
+  if (this->is_failed()) {
+    ESP_LOGE(TAG, ESP_LOG_MSG_COMM_FAIL);
+  }
+}
+
+void BM8563::start_timer(uint32_t duration_s) {
+  this->clear_irq_();
+  this->set_timer_irq_(duration_s);
+}
+
+void BM8563::write_time() {
+  auto now = time::RealTimeClock::utcnow();
+  if (!now.is_valid()) {
+    ESP_LOGE(TAG, "Invalid system time, not syncing to RTC.");
+    return;
+  }
+
+  ESP_LOGD(TAG, "Writing time: %i-%i-%i %i, %i:%i:%i", now.year, now.month, now.day_of_month, now.day_of_week, now.hour,
+           now.minute, now.second);
+
+  this->set_time_(now);
+  this->set_date_(now);
+}
+
+void BM8563::read_time() {
+  ESPTime rtc_time;
+  this->get_time_(rtc_time);
+  this->get_date_(rtc_time);
+  rtc_time.day_of_year = 1;  // unused by recalc_timestamp_utc, but needs to be valid
+  ESP_LOGD(TAG, "Read time: %i-%i-%i %i, %i:%i:%i", rtc_time.year, rtc_time.month, rtc_time.day_of_month,
+           rtc_time.day_of_week, rtc_time.hour, rtc_time.minute, rtc_time.second);
+
+  rtc_time.recalc_timestamp_utc(false);
+  if (!rtc_time.is_valid()) {
+    ESP_LOGE(TAG, "Invalid RTC time, not syncing to system clock.");
+    return;
+  }
+  time::RealTimeClock::synchronize_epoch_(rtc_time.timestamp);
+}
+
+uint8_t BM8563::bcd2_to_byte_(uint8_t value) {
+  const uint8_t tmp = ((value & 0xF0) >> 0x4) * 10;
+  return tmp + (value & 0x0F);
+}
+
+uint8_t BM8563::byte_to_bcd2_(uint8_t value) {
+  const uint8_t bcdhigh = value / 10;
+  value -= bcdhigh * 10;
+  return (bcdhigh << 4) | value;
+}
+
+void BM8563::get_time_(ESPTime &time) {
+  uint8_t buf[3] = {0};
+  this->read_register(TIME_FIRST_REG, buf, 3);
+
+  time.second = this->bcd2_to_byte_(buf[0] & 0x7f);
+  time.minute = this->bcd2_to_byte_(buf[1] & 0x7f);
+  time.hour = this->bcd2_to_byte_(buf[2] & 0x3f);
+}
+
+void BM8563::set_time_(const ESPTime &time) {
+  uint8_t buf[3] = {this->byte_to_bcd2_(time.second), this->byte_to_bcd2_(time.minute), this->byte_to_bcd2_(time.hour)};
+  this->write_register_(TIME_FIRST_REG, buf, 3);
+}
+
+void BM8563::get_date_(ESPTime &time) {
+  uint8_t buf[4] = {0};
+  this->read_register(DATE_FIRST_REG, buf, sizeof(buf));
+
+  time.day_of_month = this->bcd2_to_byte_(buf[0] & 0x3f);
+  time.day_of_week = this->bcd2_to_byte_(buf[1] & 0x07);
+  time.month = this->bcd2_to_byte_(buf[2] & 0x1f);
+
+  uint8_t year_byte = this->bcd2_to_byte_(buf[3] & 0xff);
+
+  if (buf[2] & 0x80) {
+    time.year = 1900 + year_byte;
+  } else {
+    time.year = 2000 + year_byte;
+  }
+}
+
+void BM8563::set_date_(const ESPTime &time) {
+  uint8_t buf[4] = {
+      this->byte_to_bcd2_(time.day_of_month),
+      this->byte_to_bcd2_(time.day_of_week),
+      this->byte_to_bcd2_(time.month),
+      this->byte_to_bcd2_(time.year % 100),
+  };
+
+  if (time.year < 2000) {
+    buf[2] = buf[2] | 0x80;
+  }
+
+  this->write_register_(DATE_FIRST_REG, buf, 4);
+}
+
+void BM8563::write_byte_(uint8_t reg, uint8_t value) {
+  if (!this->write_byte(reg, value)) {
+    ESP_LOGE(TAG, "Failed to write byte 0x%02X with value 0x%02X", reg, value);
+  }
+}
+
+void BM8563::write_register_(uint8_t reg, const uint8_t *data, size_t len) {
+  if (auto error = this->write_register(reg, data, len); error != i2c::ErrorCode::NO_ERROR) {
+    ESP_LOGE(TAG, "Failed to write register 0x%02X with %zu bytes", reg, len);
+  }
+}
+
+optional<uint8_t> BM8563::read_register_(uint8_t reg) {
+  uint8_t data;
+  if (auto error = this->read_register(reg, &data, 1); error != i2c::ErrorCode::NO_ERROR) {
+    ESP_LOGE(TAG, "Failed to read register 0x%02X", reg);
+    return {};
+  }
+  return data;
+}
+
+void BM8563::set_timer_irq_(uint32_t duration_s) {
+  ESP_LOGI(TAG, "Timer Duration: %u s", duration_s);
+
+  if (duration_s > MAX_TIMER_DURATION_S) {
+    ESP_LOGW(TAG, "Timer duration %u s exceeds maximum %u s", duration_s, MAX_TIMER_DURATION_S);
+    return;
+  }
+
+  if (duration_s > 255) {
+    uint8_t duration_minutes = duration_s / 60;
+    this->write_byte_(TIMER_VALUE_REG, duration_minutes);
+    this->write_byte_(TIMER_CONTROL_REG, CLOCK_1_60_HZ);
+  } else {
+    this->write_byte_(TIMER_VALUE_REG, duration_s);
+    this->write_byte_(TIMER_CONTROL_REG, CLOCK_1_HZ);
+  }
+
+  auto maybe_ctrl_status_2 = this->read_register_(CONTROL_STATUS_2_REG);
+  if (!maybe_ctrl_status_2.has_value()) {
+    ESP_LOGE(TAG, "Failed to read CONTROL_STATUS_2_REG");
+    return;
+  }
+  uint8_t ctrl_status_2_reg_value = maybe_ctrl_status_2.value();
+  ctrl_status_2_reg_value |= (1 << 0);
+  ctrl_status_2_reg_value &= ~(1 << 7);
+  this->write_byte_(CONTROL_STATUS_2_REG, ctrl_status_2_reg_value);
+}
+
+void BM8563::clear_irq_() {
+  auto maybe_data = this->read_register_(CONTROL_STATUS_2_REG);
+  if (!maybe_data.has_value()) {
+    ESP_LOGE(TAG, "Failed to read CONTROL_STATUS_2_REG");
+    return;
+  }
+  uint8_t data = maybe_data.value();
+  this->write_byte_(CONTROL_STATUS_2_REG, data & 0xf3);
+}
+
+void BM8563::disable_irq_() {
+  this->clear_irq_();
+  auto maybe_data = this->read_register_(CONTROL_STATUS_2_REG);
+  if (!maybe_data.has_value()) {
+    ESP_LOGE(TAG, "Failed to read CONTROL_STATUS_2_REG");
+    return;
+  }
+  uint8_t data = maybe_data.value();
+  this->write_byte_(CONTROL_STATUS_2_REG, data & 0xfc);
+}
+
+}  // namespace esphome::bm8563

esphome/components/bm8563/bm8563.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/time/real_time_clock.h"
+
+namespace esphome::bm8563 {
+
+class BM8563 : public time::RealTimeClock, public i2c::I2CDevice {
+ public:
+  void setup() override;
+  void update() override;
+  void dump_config() override;
+
+  void write_time();
+  void read_time();
+  void start_timer(uint32_t duration_s);
+
+ private:
+  void get_time_(ESPTime &time);
+  void get_date_(ESPTime &time);
+
+  void set_time_(const ESPTime &time);
+  void set_date_(const ESPTime &time);
+
+  void set_timer_irq_(uint32_t duration_s);
+  void clear_irq_();
+  void disable_irq_();
+
+  void write_byte_(uint8_t reg, uint8_t value);
+  void write_register_(uint8_t reg, const uint8_t *data, size_t len);
+  optional<uint8_t> read_register_(uint8_t reg);
+
+  uint8_t bcd2_to_byte_(uint8_t value);
+  uint8_t byte_to_bcd2_(uint8_t value);
+};
+
+template<typename... Ts> class WriteAction : public Action<Ts...>, public Parented<BM8563> {
+ public:
+  void play(const Ts &...x) override { this->parent_->write_time(); }
+};
+
+template<typename... Ts> class ReadAction : public Action<Ts...>, public Parented<BM8563> {
+ public:
+  void play(const Ts &...x) override { this->parent_->read_time(); }
+};
+
+template<typename... Ts> class TimerAction : public Action<Ts...>, public Parented<BM8563> {
+ public:
+  TEMPLATABLE_VALUE(uint32_t, duration)
+
+  void play(const Ts &...x) override {
+    auto duration = this->duration_.value(x...);
+    this->parent_->start_timer(duration);
+  }
+};
+
+}  // namespace esphome::bm8563

esphome/components/bm8563/time.py

@@ -0,0 +1,80 @@
+from esphome import automation
+import esphome.codegen as cg
+from esphome.components import i2c, time
+import esphome.config_validation as cv
+from esphome.const import CONF_DURATION, CONF_ID
+
+DEPENDENCIES = ["i2c"]
+
+I2C_ADDR = 0x51
+
+bm8563_ns = cg.esphome_ns.namespace("bm8563")
+BM8563 = bm8563_ns.class_("BM8563", time.RealTimeClock, i2c.I2CDevice)
+WriteAction = bm8563_ns.class_("WriteAction", automation.Action)
+ReadAction = bm8563_ns.class_("ReadAction", automation.Action)
+TimerAction = bm8563_ns.class_("TimerAction", automation.Action)
+
+CONFIG_SCHEMA = (
+    time.TIME_SCHEMA.extend(
+        {
+            cv.GenerateID(): cv.declare_id(BM8563),
+        }
+    )
+    .extend(cv.COMPONENT_SCHEMA)
+    .extend(i2c.i2c_device_schema(I2C_ADDR))
+)
+
+
+@automation.register_action(
+    "bm8563.write_time",
+    WriteAction,
+    automation.maybe_simple_id(
+        {
+            cv.GenerateID(): cv.use_id(BM8563),
+        }
+    ),
+)
+async def bm8563_write_time_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    return var
+
+
+@automation.register_action(
+    "bm8563.start_timer",
+    TimerAction,
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.use_id(BM8563),
+            cv.Required(CONF_DURATION): cv.templatable(cv.positive_time_period_seconds),
+        }
+    ),
+)
+async def bm8563_start_timer_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    template_ = await cg.templatable(config[CONF_DURATION], args, cg.uint32)
+    cg.add(var.set_duration(template_))
+    return var
+
+
+@automation.register_action(
+    "bm8563.read_time",
+    ReadAction,
+    automation.maybe_simple_id(
+        {
+            cv.GenerateID(): cv.use_id(BM8563),
+        }
+    ),
+)
+async def bm8563_read_time_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    return var
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+    await time.register_time(var, config)

esphome/components/bme280_base/bme280_base.cpp

@@ -100,18 +100,18 @@ void BME280Component::setup() {
 
   if (!this->read_byte(BME280_REGISTER_CHIPID, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   if (chip_id != 0x60) {
     this->error_code_ = WRONG_CHIP_ID;
-    this->mark_failed(BME280_ERROR_WRONG_CHIP_ID);
+    this->mark_failed(LOG_STR(BME280_ERROR_WRONG_CHIP_ID));
     return;
   }
 
   // Send a soft reset.
   if (!this->write_byte(BME280_REGISTER_RESET, BME280_SOFT_RESET)) {
-    this->mark_failed("Reset failed");
+    this->mark_failed(LOG_STR("Reset failed"));
     return;
   }
   // Wait until the NVM data has finished loading.
@@ -120,12 +120,12 @@ void BME280Component::setup() {
   do {  // NOLINT
     delay(2);
     if (!this->read_byte(BME280_REGISTER_STATUS, &status)) {
-      this->mark_failed("Error reading status register");
+      this->mark_failed(LOG_STR("Error reading status register"));
       return;
     }
   } while ((status & BME280_STATUS_IM_UPDATE) && (--retry));
   if (status & BME280_STATUS_IM_UPDATE) {
-    this->mark_failed("Timeout loading NVM");
+    this->mark_failed(LOG_STR("Timeout loading NVM"));
     return;
   }
 
@@ -153,26 +153,26 @@ void BME280Component::setup() {
 
   uint8_t humid_control_val = 0;
   if (!this->read_byte(BME280_REGISTER_CONTROLHUMID, &humid_control_val)) {
-    this->mark_failed("Read humidity control");
+    this->mark_failed(LOG_STR("Read humidity control"));
     return;
   }
   humid_control_val &= ~0b00000111;
   humid_control_val |= this->humidity_oversampling_ & 0b111;
   if (!this->write_byte(BME280_REGISTER_CONTROLHUMID, humid_control_val)) {
-    this->mark_failed("Write humidity control");
+    this->mark_failed(LOG_STR("Write humidity control"));
     return;
   }
 
   uint8_t config_register = 0;
   if (!this->read_byte(BME280_REGISTER_CONFIG, &config_register)) {
-    this->mark_failed("Read config");
+    this->mark_failed(LOG_STR("Read config"));
     return;
   }
   config_register &= ~0b11111100;
   config_register |= 0b101 << 5;  // 1000 ms standby time
   config_register |= (this->iir_filter_ & 0b111) << 2;
   if (!this->write_byte(BME280_REGISTER_CONFIG, config_register)) {
-    this->mark_failed("Write config");
+    this->mark_failed(LOG_STR("Write config"));
     return;
   }
 }

esphome/components/bme680_bsec/__init__.py

@@ -69,7 +69,7 @@ CONFIG_SCHEMA = cv.All(
         cv.only_on_esp8266,
         cv.All(
             cv.only_on_esp32,
-            esp32.only_on_variant(supported=[esp32.const.VARIANT_ESP32]),
+            esp32.only_on_variant(supported=[esp32.VARIANT_ESP32]),
         ),
     ),
 )

esphome/components/bme68x_bsec2/bme68x_bsec2.cpp

@@ -70,6 +70,9 @@ void BME68xBSEC2Component::dump_config() {
   if (this->is_failed()) {
     ESP_LOGE(TAG, "Communication failed (BSEC2 status: %d, BME68X status: %d)", this->bsec_status_,
              this->bme68x_status_);
+    if (this->bsec_status_ == BSEC_I_SU_SUBSCRIBEDOUTPUTGATES) {
+      ESP_LOGE(TAG, "No sensors, add at least one sensor to the config");
+    }
   }
 
   if (this->algorithm_output_ != ALGORITHM_OUTPUT_IAQ) {

esphome/components/bme68x_bsec2_i2c/__init__.py

@@ -11,6 +11,7 @@ CODEOWNERS = ["@neffs", "@kbx81"]
 
 AUTO_LOAD = ["bme68x_bsec2"]
 DEPENDENCIES = ["i2c"]
+MULTI_CONF = True
 
 bme68x_bsec2_i2c_ns = cg.esphome_ns.namespace("bme68x_bsec2_i2c")
 BME68xBSEC2I2CComponent = bme68x_bsec2_i2c_ns.class_(

esphome/components/bmp280_base/bmp280_base.cpp

@@ -65,23 +65,23 @@ void BMP280Component::setup() {
   // https://community.st.com/t5/stm32-mcus-products/issue-with-reading-bmp280-chip-id-using-spi/td-p/691855
   if (!this->bmp_read_byte(0xD0, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   if (!this->bmp_read_byte(0xD0, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   if (chip_id != 0x58) {
     this->error_code_ = WRONG_CHIP_ID;
-    this->mark_failed(BMP280_ERROR_WRONG_CHIP_ID);
+    this->mark_failed(LOG_STR(BMP280_ERROR_WRONG_CHIP_ID));
     return;
   }
 
   // Send a soft reset.
   if (!this->bmp_write_byte(BMP280_REGISTER_RESET, BMP280_SOFT_RESET)) {
-    this->mark_failed("Reset failed");
+    this->mark_failed(LOG_STR("Reset failed"));
     return;
   }
   // Wait until the NVM data has finished loading.
@@ -90,12 +90,12 @@ void BMP280Component::setup() {
   do {
     delay(2);
     if (!this->bmp_read_byte(BMP280_REGISTER_STATUS, &status)) {
-      this->mark_failed("Error reading status register");
+      this->mark_failed(LOG_STR("Error reading status register"));
       return;
     }
   } while ((status & BMP280_STATUS_IM_UPDATE) && (--retry));
   if (status & BMP280_STATUS_IM_UPDATE) {
-    this->mark_failed("Timeout loading NVM");
+    this->mark_failed(LOG_STR("Timeout loading NVM"));
     return;
   }
 
@@ -116,14 +116,14 @@ void BMP280Component::setup() {
 
   uint8_t config_register = 0;
   if (!this->bmp_read_byte(BMP280_REGISTER_CONFIG, &config_register)) {
-    this->mark_failed("Read config");
+    this->mark_failed(LOG_STR("Read config"));
     return;
   }
   config_register &= ~0b11111100;
   config_register |= 0b000 << 5;  // 0.5 ms standby time
   config_register |= (this->iir_filter_ & 0b111) << 2;
   if (!this->bmp_write_byte(BMP280_REGISTER_CONFIG, config_register)) {
-    this->mark_failed("Write config");
+    this->mark_failed(LOG_STR("Write config"));
     return;
   }
 }

esphome/components/button/automation.h

@@ -4,8 +4,7 @@
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 
-namespace esphome {
-namespace button {
+namespace esphome::button {
 
 template<typename... Ts> class PressAction : public Action<Ts...> {
  public:
@@ -24,5 +23,4 @@ class ButtonPressTrigger : public Trigger<> {
   }
 };
 
-}  // namespace button
-}  // namespace esphome
+}  // namespace esphome::button

esphome/components/button/button.cpp

@@ -1,8 +1,7 @@
 #include "button.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace button {
+namespace esphome::button {
 
 static const char *const TAG = "button";
 
@@ -26,5 +25,4 @@ void Button::press() {
 }
 void Button::add_on_press_callback(std::function<void()> &&callback) { this->press_callback_.add(std::move(callback)); }
 
-}  // namespace button
-}  // namespace esphome
+}  // namespace esphome::button

esphome/components/button/button.h

@@ -4,8 +4,7 @@
 #include "esphome/core/entity_base.h"
 #include "esphome/core/helpers.h"
 
-namespace esphome {
-namespace button {
+namespace esphome::button {
 
 class Button;
 void log_button(const char *tag, const char *prefix, const char *type, Button *obj);
@@ -45,5 +44,4 @@ class Button : public EntityBase, public EntityBase_DeviceClass {
   CallbackManager<void()> press_callback_{};
 };
 
-}  // namespace button
-}  // namespace esphome
+}  // namespace esphome::button

esphome/components/camera/camera.cpp

@@ -8,7 +8,7 @@ Camera *Camera::global_camera = nullptr;
 
 Camera::Camera() {
   if (global_camera != nullptr) {
-    this->status_set_error("Multiple cameras are configured, but only one is supported.");
+    this->status_set_error(LOG_STR("Multiple cameras are configured, but only one is supported."));
     this->mark_failed();
     return;
   }