[release] v0.9.0

[docs] Update ESPHome docs, add cloudcutter guide
[core] Update ltchiptool to v1.4.0
2022-08-06 13:42:37 +02:00 · 2022-08-06 13:37:47 +02:00 · 2022-08-06 13:06:44 +02:00 · 2022-08-06 11:36:53 +02:00 · 2022-08-05 20:29:48 +02:00 · 2022-08-05 20:29:45 +02:00
128 changed files with 2260 additions and 4076 deletions
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ LibreTuya also provides a common interface for all family implementations. The i

 ## Board List

-See [Boards & CPU list](https://kuba2k2.github.io/libretuya/docs/supported/).
+See [Boards & CPU list](https://kuba2k2.github.io/libretuya/docs/status/supported/).

 ## Arduino Core support status

@@ -44,7 +44,7 @@ Note: this list will probably change with each functionality update.
 &nbsp;              | `realtek-ambz` | `beken-72xx`
 --------------------|----------------|-------------
 Core functions      | ✔️             | ✔️
-GPIO/PWM/IRQ        | ✔️/✔️/✔️       | ❓/✔️/❌
+GPIO/PWM/IRQ        | ✔️/✔️/✔️       | ✔️/✔️/✔️
 Analog input (ADC)  | ✔️             | ✔️
 Serial              | ✔️             | ✔️
 Serial (extra)      | 0, 1, 2        | 1, 2
@@ -65,8 +65,8 @@ NVS / Preferences   | ❌              | ❌
 SPIFFS              | ❌              | ❌
 BLE                 | -              | ❌
 NTP                 | ❌              | ❌
-OTA                 | ✔️             | ❌
-MDNS                | ✔️             | ✔️
+OTA                 | ✔️             | ✔️
+MDNS                | ✔️             | BK7231T only
 MQTT                | ✅              | ❌
 SD                  | ❌              | ❌

--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -1,10 +1,29 @@
 * [Home](README.md)
-* [Getting started](docs/getting-started.md)
-* [💻 Boards & CPU list](docs/supported.md)
-* [✔️ Implementation status](docs/implementation-status.md)
-* [🔧 Configuration](docs/config.md)
-* [📁 Project structure](docs/project-structure.md)
-* 🔖 Code reference
+* 😊 Getting started
+	* [Start here](docs/getting-started/README.md)
+	* [Uploading](docs/getting-started/uploading.md)
+	* [Options & config](docs/reference/config.md)
+	* Examples
+		* [PinScan](examples/PinScan/README.md)
+	* [ESPHome port](docs/projects/esphome.md)
+	* [Using tuya-cloudcutter](docs/cloudcutter.md)
+* [💻 Boards & CPU list](docs/status/supported.md)
+* [✔️ Implementation status](docs/status/arduino.md)
+* Supported chip families
+	* Beken BK72xx
+		* [General info](docs/platform/beken-72xx/README.md)
+		* [Flashing](docs/platform/beken-72xx/flashing.md)
+	* Realtek AmebaZ Series
+		* [General info](docs/platform/realtek/README.md)
+		* [Flashing (AmebaZ)](docs/platform/realtek-ambz/flashing.md)
+		* [Debugging](docs/platform/realtek/debugging.md)
+		* [Exception decoder](docs/platform/realtek/exception-decoder.md)
+		* C library
+			* [Built-in functions](docs/platform/realtek-ambz/stdlib.md)
+			* [Memory management](docs/platform/realtek-ambz/memory-management.md)
+	* [All supported boards](boards/)
+* API & libraries
+	* [Options & config](docs/reference/config.md)
 	* [LibreTuya API](docs/reference/lt-api.md)
 		* [LT class reference](ltapi/class_libre_tuya.md)
 		* [Common methods](ltapi/_libre_tuya_a_p_i_8h.md)
@@ -38,22 +57,10 @@
 		* [Functions](ltapi/functions.md)
 		* [Macros](ltapi/macros.md)
 		* [File list](ltapi/files.md)
-* [✈️ OTA format](docs/ota/README.md)
-	* [uf2ota.py tool](docs/ota/uf2ota.md)
-	* [uf2ota.h library](docs/ota/library.md)
-	* [uf2ota.h reference](ltapi/uf2ota_8h.md)
-* Families
-	* Beken BK72xx
-		* [General info](docs/platform/beken-72xx/README.md)
-		* [Flashing](docs/platform/beken-72xx/flashing.md)
-	* Realtek AmebaZ Series
-		* [General info](docs/platform/realtek/README.md)
-		* [Flashing (AmebaZ)](docs/platform/realtek-ambz/flashing.md)
-		* [Debugging](docs/platform/realtek/debugging.md)
-		* [Exception decoder](docs/platform/realtek/exception-decoder.md)
-		* C library
-			* [Built-in functions](docs/platform/realtek-ambz/stdlib.md)
-			* [Memory management](docs/platform/realtek-ambz/memory-management.md)
-	* [All supported boards](boards/)
+	* [📁 Project structure](docs/reference/project-structure.md)
+	* [✈️ OTA format](docs/ota/README.md)
+		* [uf2ota.py tool](docs/ota/uf2ota.md)
+		* [uf2ota.h library](docs/ota/library.md)
+		* [uf2ota.h reference](ltapi/uf2ota_8h.md)
 * [📓 TODO](TODO.md)
 * [🔗 Resources](docs/resources.md)
--- a/TODO.md
+++ b/TODO.md
@@ -14,8 +14,7 @@

 ### Tools

- move all UF2 assembling/uploading/processing tools (as well as `uf2ota` C library) to a separate repository, possibly rewriting parts of it again. Make these tools CLI-usable
- write OpenOCD flashers, using uf2ota library + FAL for partitions (same repo as above)
+- write OpenOCD flashers, using uf2ota library + FAL for partitions (in ltchiptool repository)

 ### Serial

@@ -31,10 +30,8 @@

 ## BK7231

- WiFi events
 - implement OTA
 - fix WiFi on BK7231N, test other functionality
- add generic board definition
 - fix SSL (mbedTLS)
 - I2C (Wire)
 - SPI
@@ -42,6 +39,5 @@

 ## RTL8710B

- add generic board definition
 - move to GNU++11 (and verify that it works) - take all stdio functions from stdio.h
 - rewrite most of Wiring (it was copied from `ambd_arduino`, and is ugly)
--- a/arduino/beken-72xx/cores/arduino/LibreTuyaAPI.cpp
+++ b/arduino/beken-72xx/cores/arduino/LibreTuyaAPI.cpp
@@ -1,6 +1,7 @@
 /* Copyright (c) Kuba Szczodrzyński 2022-06-19. */

 #include <LibreTuyaAPI.h>
+#include <libraries/Flash/Flash.h>

 // can't include <flash.h> as it collides with <Flash.h> on Windows -_-
 #define REG_FLASH_BASE		 0x00803000
@@ -109,12 +110,14 @@ uint32_t LibreTuya::getMaxAllocHeap() {

 /* OTA-related */

+static int8_t otaImage2Valid = -1;
+
 uint8_t LibreTuya::otaGetStoredIndex() {
-	return 1;
+	return otaHasImage2() ? 2 : 1;
 }

 bool LibreTuya::otaSupportsDual() {
-	return false;
+	return true;
 }

 bool LibreTuya::otaHasImage1() {
@@ -122,11 +125,28 @@ bool LibreTuya::otaHasImage1() {
 }

 bool LibreTuya::otaHasImage2() {
-	return false;
+	if (otaImage2Valid != -1)
+		return otaImage2Valid;
+	// check download RBL
+	// TODO: maybe check header CRC or even binary hashes
+	uint32_t magic;
+	Flash.readBlock(FLASH_DOWNLOAD_OFFSET, (uint8_t *)&magic, 4);
+	otaImage2Valid = magic == 0x004C4252; // "RBL\0", little-endian
+	return otaImage2Valid;
 }

 bool LibreTuya::otaSwitch(bool force) {
-	return true;
+	// no need to check otaGetStoredIndex() as it does the same as otaHasImage2()
+
+	// force checking validity again
+	otaImage2Valid = -1;
+
+	if (otaHasImage2() && force) {
+		// "rollback" - abort bootloader upgrade operation by wiping first sector
+		return Flash.eraseSector(FLASH_DOWNLOAD_OFFSET);
+	}
+
+	return otaHasImage2(); // false if second image is not valid
 }

 /* Global instance */
--- a/arduino/beken-72xx/cores/arduino/SerialClass.cpp
+++ b/arduino/beken-72xx/cores/arduino/SerialClass.cpp
@@ -26,7 +26,10 @@ SerialClass::SerialClass(uint8_t port) {

 static void callback(int port, void *param) {
 	RingBuffer *buf = (RingBuffer *)param;
-	buf->store_char(uart_read_byte(port));
+	int ch;
+	while ((ch = uart_read_byte(port)) != -1) {
+		buf->store_char(ch);
+	}
 }

 void SerialClass::begin(unsigned long baudrate, uint16_t config) {
@@ -54,6 +57,14 @@ void SerialClass::begin(unsigned long baudrate, uint16_t config) {

 void SerialClass::end() {
 	uart_rx_callback_set(port, NULL, NULL);
+	switch (port) {
+		case 1:
+			uart1_exit();
+			break;
+		case 2:
+			uart2_exit();
+			break;
+	}
 	delete this->buf;
 }

--- a/arduino/beken-72xx/cores/arduino/main.cpp
+++ b/arduino/beken-72xx/cores/arduino/main.cpp
@@ -23,7 +23,7 @@ bool startMainTask() {
 		&mainThread,
 		THD_APPLICATION_PRIORITY,
 		"main",
-		(beken_thread_function_t)main_task,
+		(beken_thread_function_t)mainTask,
 		8192,
 		NULL
 	);
--- a/arduino/beken-72xx/cores/arduino/wiring_irq.c
+++ b/arduino/beken-72xx/cores/arduino/wiring_irq.c
@@ -0,0 +1,76 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-07-31. */
+
+#include <Arduino.h>
+
+static void *irqHandlerList[PINS_COUNT] = {NULL};
+static void *irqHandlerArgs[PINS_COUNT] = {NULL};
+
+static void irqHandler(unsigned char gpio) {
+	int pin = -1;
+	for (pin_size_t i = 0; i < PINS_COUNT; i++) {
+		if (pinTable[i].gpio == gpio) {
+			pin = i;
+			break;
+		}
+	}
+	if (pin == -1)
+		return;
+	if (!irqHandlerList[pin])
+		return;
+	if (irqHandlerArgs[pin] == NULL) {
+		((voidFuncPtr)irqHandlerList[pin])();
+	} else {
+		((voidFuncPtrParam)irqHandlerList[pin])(irqHandlerArgs[pin]);
+	}
+}
+
+void attachInterrupt(pin_size_t interruptNumber, voidFuncPtr callback, PinStatus mode) {
+	attachInterruptParam(interruptNumber, (voidFuncPtrParam)callback, mode, NULL);
+}
+
+void attachInterruptParam(pin_size_t interruptNumber, voidFuncPtrParam callback, PinStatus mode, void *param) {
+	PinInfo *pin = pinInfo(interruptNumber);
+	if (!pin)
+		return;
+	if (!pinSupported(pin, PIN_IRQ))
+		return;
+	uint32_t event	= 0;
+	PinMode modeNew = 0;
+	switch (mode) {
+		case LOW:
+			event	= GPIO_INT_LEVEL_LOW;
+			modeNew = INPUT_PULLUP;
+			break;
+		case HIGH:
+			event	= GPIO_INT_LEVEL_HIGH;
+			modeNew = INPUT_PULLDOWN;
+			break;
+		case FALLING:
+			event	= GPIO_INT_LEVEL_FALLING;
+			modeNew = INPUT_PULLUP;
+			break;
+		case RISING:
+			event	= GPIO_INT_LEVEL_RISING;
+			modeNew = INPUT_PULLDOWN;
+			break;
+		default:
+			return;
+	}
+	irqHandlerList[interruptNumber] = callback;
+	irqHandlerArgs[interruptNumber] = param;
+	gpio_int_enable(pin->gpio, event, irqHandler);
+	pin->enabled |= PIN_IRQ | PIN_GPIO;
+	pin->mode = modeNew;
+}
+
+void detachInterrupt(pin_size_t interruptNumber) {
+	PinInfo *pin = pinInfo(interruptNumber);
+	if (!pin)
+		return;
+	if (!pinSupported(pin, PIN_IRQ))
+		return;
+	irqHandlerList[interruptNumber] = NULL;
+	irqHandlerArgs[interruptNumber] = NULL;
+	gpio_int_disable(pin->gpio);
+	pin->enabled &= ~PIN_IRQ;
+}
--- a/arduino/beken-72xx/port/printf/printf.c
+++ b/arduino/beken-72xx/port/printf/printf.c
@@ -15,7 +15,7 @@ void putchar_(char c) {
 }

 void putchar_p(char c, unsigned long port) {
-	bk_send_byte(port & 0xFF, c);
+	bk_send_byte((port & 0xFF) - 1, c);
 }

 WRAP_PRINTF(bk_printf);
--- a/arduino/libretuya/common/WMath.cpp
+++ b/arduino/libretuya/common/WMath.cpp
@@ -41,15 +41,3 @@ long random(long howsmall, long howbig) {

 	return random(diff) + howsmall;
 }
-
-extern long map(long x, long in_min, long in_max, long out_min, long out_max) {
-	return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
-}
-
-extern uint16_t makeWord(uint16_t w) {
-	return w;
-}
-
-extern uint16_t makeWord(uint8_t h, uint8_t l) {
-	return (h << 8) | l;
-}
--- a/arduino/libretuya/common/main.cpp
+++ b/arduino/libretuya/common/main.cpp
@@ -21,7 +21,7 @@ void initVariant() __attribute__((weak));
 // Initialize C library
 extern "C" void __libc_init_array(void);

-void main_task(const void *arg) {
+void mainTask(const void *arg) {
 	setup();

 	for (;;) {
@@ -46,7 +46,9 @@ int main(void) {
 	// provide root partition
 	fal_root_part = (fal_partition_t)fal_partition_find("root");
 	// start the main task and OS kernel
-	startMainTask();
+	if (!startMainTask()) {
+		LT_E("Couldn't start the main task");
+	}

 	while (1) {}
 	return 0;
--- a/arduino/libretuya/core/ChipType.h
+++ b/arduino/libretuya/core/ChipType.h
@@ -1,5 +1,7 @@
 /* Copyright (c) Kuba Szczodrzyński 2022-05-28. */

+#pragma once
+
 #define CHIP_TYPE(family, chip_id)		(((family >> 24) << 8) | chip_id)
 #define CHIP_TYPE_ENUM(family, chip_id) (ChipType) CHIP_TYPE(family, chip_id)

--- a/arduino/libretuya/core/LibreTuyaClass.cpp
+++ b/arduino/libretuya/core/LibreTuyaClass.cpp
@@ -98,7 +98,8 @@ uint8_t LibreTuya::otaGetTarget() {
 }

 /**
- * @brief Perform OTA rollback.
+ * @brief Perform OTA rollback: switch to the previous image, or abort current
+ * switched OTA update, if not rebooted yet.
 *
 * @return false if no second image to run, writing failed or dual-OTA not supported
 */
--- a/arduino/libretuya/core/LibreTuyaClass.h
+++ b/arduino/libretuya/core/LibreTuyaClass.h
@@ -114,7 +114,9 @@ class LibreTuya {
 	 */
 	uint8_t otaGetStoredIndex();
 	/**
-	 * @brief Check if the chip supports dual-OTA.
+	 * @brief Check if the chip supports dual-OTA (i.e. OTA is flashed to a different partition).
+	 *
+	 * TODO: make this work for actual dual-OTA chips; remove checking this in otaGetTarget() etc.
 	 */
 	bool otaSupportsDual();
 	/**
--- a/arduino/libretuya/core/LibreTuyaConfig.h
+++ b/arduino/libretuya/core/LibreTuyaConfig.h
@@ -95,3 +95,7 @@
 #ifndef LT_DEBUG_SSL
 #define LT_DEBUG_SSL 0
 #endif
+
+#ifndef LT_DEBUG_OTA
+#define LT_DEBUG_OTA 0
+#endif
--- a/arduino/libretuya/core/LibreTuyaCustom.h
+++ b/arduino/libretuya/core/LibreTuyaCustom.h
@@ -9,7 +9,9 @@ extern "C" {
 #endif

 /**
- * @brief Run main_task & start OS kernel (family-defined)
+ * @brief Run mainTask & start OS kernel (family-defined).
+ * Return false if an error occured; else do not return and
+ * and keep the OS kernel running.
 */
 extern bool startMainTask();

@@ -17,7 +19,7 @@ extern bool startMainTask();
 * @brief Main setup() and loop() task.
 * Not to be called directly.
 */
-extern void main_task(const void *arg);
+extern void mainTask(const void *arg);

 #define PIN_NONE (1 << 0)
 #define PIN_GPIO (1 << 1)
--- a/arduino/libretuya/core/lt_logger.c
+++ b/arduino/libretuya/core/lt_logger.c
@@ -50,6 +50,9 @@ void lt_log(const uint8_t level, const char *caller, const unsigned short line,
 void lt_log(const uint8_t level, const char *format, ...) {
 #endif

+	if (uart_port == 0xFF)
+		return;
+
 #if LT_LOGGER_TIMESTAMP
 	float seconds = millis() / 1000.0f;
 #if LT_PRINTF_BROKEN
@@ -136,3 +139,7 @@ void lt_log(const uint8_t level, const char *format, ...) {
 void lt_log_set_port(uint8_t port) {
 	uart_port = port;
 }
+
+void lt_log_disable() {
+	uart_port = 0xFF;
+}
--- a/arduino/libretuya/core/lt_logger.h
+++ b/arduino/libretuya/core/lt_logger.h
@@ -20,6 +20,11 @@ void lt_log(const uint8_t level, const char *format, ...);
 */
 void lt_log_set_port(uint8_t port);

+/**
+ * @brief Disable LT logger. Enable it back using lt_log_set_port(LT_UART_DEFAULT_LOGGER).
+ */
+void lt_log_disable();
+
 #if LT_LEVEL_TRACE >= LT_LOGLEVEL
 #define LT_T(...) LT_LOG(LT_LEVEL_TRACE, __FUNCTION__, __LINE__, __VA_ARGS__)
 #define LT_V(...) LT_LOG(LT_LEVEL_TRACE, __FUNCTION__, __LINE__, __VA_ARGS__)
@@ -180,3 +185,8 @@ void lt_log_set_port(uint8_t port);
 #define LT_T_SSL(...) LT_T_MOD(LT_DEBUG_SSL, __VA_ARGS__)
 #define LT_V_SSL(...) LT_T_MOD(LT_DEBUG_SSL, __VA_ARGS__)
 #define LT_D_SSL(...) LT_D_MOD(LT_DEBUG_SSL, __VA_ARGS__)
+
+// Update.cpp
+#define LT_T_OTA(...) LT_T_MOD(LT_DEBUG_OTA, __VA_ARGS__)
+#define LT_V_OTA(...) LT_T_MOD(LT_DEBUG_OTA, __VA_ARGS__)
+#define LT_D_OTA(...) LT_D_MOD(LT_DEBUG_OTA, __VA_ARGS__)
--- a/arduino/libretuya/libraries/Update/Update.cpp
+++ b/arduino/libretuya/libraries/Update/Update.cpp
@@ -18,6 +18,8 @@ bool UpdateClass::begin(size_t size, int command, int unused2, uint8_t unused3,
 		return false;
 	cleanup();

+	LT_D_OTA("begin(%u, ...) / OTA curr: %u, trgt: %u", size, LT.otaGetRunning(), LT.otaGetTarget());
+
 	ctx	 = uf2_ctx_init(LT.otaGetTarget(), FAMILY);
 	info = uf2_info_init();

@@ -70,6 +72,8 @@ size_t UpdateClass::write(uint8_t *data, size_t len) {
 		// 0 if not running
 		return 0;

+	LT_D_OTA("write(%u) / buf %u/512", len, bufSize());
+
 	/* while (buf == bufPos && len >= UF2_BLOCK_SIZE) {
 		// buffer empty and entire block is in data
 		if (!tryWriteData(data, UF2_BLOCK_SIZE)) {
@@ -82,7 +86,7 @@ size_t UpdateClass::write(uint8_t *data, size_t len) {
 	} */

 	// write until buffer space is available
-	uint16_t toWrite;
+	uint16_t toWrite; // 1..512
 	while (len && (toWrite = min(len, bufLeft()))) {
 		tryWriteData(data, toWrite);
 		if (hasError())
@@ -141,6 +145,8 @@ size_t UpdateClass::writeStream(Stream &data) {
 size_t UpdateClass::tryWriteData(uint8_t *data, size_t len) {
 	uf2_block_t *block = NULL;

+	LT_V_OTA("Writing %u to buffer (%u/512)", len, bufSize());
+
 	if (len == UF2_BLOCK_SIZE) {
 		// data has a complete block
 		block = (uf2_block_t *)data;
@@ -172,11 +178,14 @@ size_t UpdateClass::tryWriteData(uint8_t *data, size_t len) {
 				// header is invalid
 				return 0;

+			LT_I("OTA: %s v%s - LT v%s @ %s", info->fw_name, info->fw_version, info->lt_version, info->board);
+
 			if (bytesTotal == UPDATE_SIZE_UNKNOWN) {
 				// set total update size from block count info
 				bytesTotal = block->block_count * UF2_BLOCK_SIZE;
 			} else if (bytesTotal != block->block_count * UF2_BLOCK_SIZE) {
 				// given update size does not match the block count
+				LT_D_OTA("Image size wrong; got %u, calculated %u", bytesTotal, block->block_count * UF2_BLOCK_SIZE);
 				return errorArd(UPDATE_ERROR_SIZE);
 			}
 		} else {
--- a/arduino/libretuya/libraries/Update/Update.h
+++ b/arduino/libretuya/libraries/Update/Update.h
@@ -2,8 +2,7 @@

 #include <Arduino.h>
 #include <functional>
-
-#include "uf2ota/uf2ota.h"
+#include <uf2ota/uf2ota.h>

 // No Error
 #define UPDATE_ERROR_OK			  (0)
@@ -119,7 +118,7 @@ class UpdateClass {
 	}

 	void clearError() {
-		errorUf2(UF2_ERR_OK);
+		errorArd(UPDATE_ERROR_OK);
 	}

 	bool hasError() {
--- a/arduino/libretuya/libraries/Update/UpdateUtil.cpp
+++ b/arduino/libretuya/libraries/Update/UpdateUtil.cpp
@@ -52,6 +52,8 @@ void UpdateClass::cleanup() {
 * @return true if err is not OK, false otherwise
 */
 bool UpdateClass::errorUf2(uf2_err_t err) {
+	if (err)
+		LT_D_OTA("[%4d] errorUf2(%d)", ctx ? ctx->seq : 0, err);
 	if (err <= UF2_ERR_IGNORE)
 		return false;
 	cleanup();
@@ -67,6 +69,8 @@ bool UpdateClass::errorUf2(uf2_err_t err) {
 * @return false - always
 */
 bool UpdateClass::errorArd(uint8_t err) {
+	if (err)
+		LT_D_OTA("[%4d] errorArd(%d)", ctx ? ctx->seq : 0, err);
 	cleanup();
 	errUf2 = UF2_ERR_OK;
 	errArd = err;
@@ -77,6 +81,7 @@ bool UpdateClass::errorArd(uint8_t err) {
 * @brief Abort the update with UPDATE_ERROR_ABORT reason.
 */
 void UpdateClass::abort() {
+	LT_D_OTA("Aborting update");
 	errorArd(UPDATE_ERROR_ABORT);
 }

@@ -105,7 +110,7 @@ void UpdateClass::printError(Print &out) {
 * "ard=..,uf2=..". Returns "" if no error.
 */
 const char *UpdateClass::errorString() {
-	if (!errArd)
+	if (!errArd && !errUf2)
 		return "";
 	sprintf(errorStr, "ard=%u,uf2=%u", errArd, errUf2);
 	return errorStr;
--- a/arduino/libretuya/libraries/Update/uf2ota/uf2binpatch.c
+++ b/arduino/libretuya/libraries/Update/uf2ota/uf2binpatch.c
@@ -1,32 +0,0 @@
-/* Copyright (c) Kuba Szczodrzyński 2022-05-29. */
-
-#include "uf2priv.h"
-
-uf2_err_t uf2_binpatch(uint8_t *data, const uint8_t *binpatch, uint8_t binpatch_len) {
-	const uint8_t *binpatch_end = binpatch + binpatch_len;
-	// +2 to make sure opcode and length is present
-	while ((binpatch + 2) < binpatch_end) {
-		uf2_opcode_t opcode = binpatch[0];
-		uint8_t len			= binpatch[1];
-		switch (opcode) {
-			case UF2_OPC_DIFF32:
-				uf2_binpatch_diff32(data, binpatch + 1);
-				break;
-		}
-		// advance by opcode + length + data
-		binpatch += len + 2;
-	}
-	return UF2_ERR_OK;
-}
-
-void uf2_binpatch_diff32(uint8_t *data, const uint8_t *patch) {
-	uint8_t num_offs = patch[0] - 4;			   // read offset count
-	uint32_t diff	 = *((uint32_t *)(patch + 1)); // read diff value
-	patch += 5;									   // skip num_offs and diff value
-	for (uint8_t i = 0; i < num_offs; i++) {
-		// patch the data
-		uint8_t offs	= patch[i];
-		uint32_t *value = (uint32_t *)(data + offs);
-		*(value) += diff;
-	}
-}
--- a/arduino/libretuya/libraries/Update/uf2ota/uf2binpatch.h
+++ b/arduino/libretuya/libraries/Update/uf2ota/uf2binpatch.h
@@ -1,26 +0,0 @@
-/* Copyright (c) Kuba Szczodrzyński 2022-05-29. */
-
-#pragma once
-
-#include "uf2types.h"
-
-/**
- * @brief Apply binary patch to data.
- *
- * @param data input data
- * @param data_len input data length
- * @param binpatch binary patch data
- * @param binpatch_len binary patch data length
- * @return uf2_err_t error code
- */
-uf2_err_t uf2_binpatch(uint8_t *data, const uint8_t *binpatch, uint8_t binpatch_len);
-
-/**
- * Apply DIFF32 binary patch.
- *
- * @param data input data
- * @param len input data length
- * @param patch patch data, incl. length byte
- * @return uf2_err_t error code
- */
-void uf2_binpatch_diff32(uint8_t *data, const uint8_t *patch);
--- a/arduino/libretuya/libraries/Update/uf2ota/uf2ota.c
+++ b/arduino/libretuya/libraries/Update/uf2ota/uf2ota.c
@@ -1,100 +0,0 @@
-/* Copyright (c) Kuba Szczodrzyński 2022-05-29. */
-
-#include "uf2priv.h"
-
-uf2_ota_t *uf2_ctx_init(uint8_t ota_idx, uint32_t family_id) {
-	uf2_ota_t *ctx = (uf2_ota_t *)zalloc(sizeof(uf2_ota_t));
-	ctx->ota_idx   = ota_idx;
-	ctx->family_id = family_id;
-	return ctx;
-}
-
-uf2_info_t *uf2_info_init() {
-	uf2_info_t *info = (uf2_info_t *)zalloc(sizeof(uf2_info_t));
-	return info;
-}
-
-void uf2_info_free(uf2_info_t *info) {
-	if (!info)
-		return;
-	free(info->fw_name);
-	free(info->fw_version);
-	free(info->lt_version);
-	free(info->board);
-	free(info);
-}
-
-uf2_err_t uf2_check_block(uf2_ota_t *ctx, uf2_block_t *block) {
-	if (block->magic1 != UF2_MAGIC_1)
-		return UF2_ERR_MAGIC;
-	if (block->magic2 != UF2_MAGIC_2)
-		return UF2_ERR_MAGIC;
-	if (block->magic3 != UF2_MAGIC_3)
-		return UF2_ERR_MAGIC;
-	if (block->file_container)
-		// ignore file containers, for now
-		return UF2_ERR_IGNORE;
-	if (!block->has_family_id || block->file_size != ctx->family_id)
-		// require family_id
-		return UF2_ERR_FAMILY;
-	return UF2_ERR_OK;
-}
-
-uf2_err_t uf2_parse_header(uf2_ota_t *ctx, uf2_block_t *block, uf2_info_t *info) {
-	if (!block->has_tags || block->file_container || block->len)
-		// header must have tags and no data
-		return UF2_ERR_NOT_HEADER;
-
-	uf2_err_t err = uf2_parse_block(ctx, block, info);
-	if (err)
-		return err;
-
-	if ((ctx->ota_idx == 1 && !ctx->has_ota1) || !ctx->has_ota2)
-		return UF2_ERR_OTA_WRONG;
-	return UF2_ERR_OK;
-}
-
-uf2_err_t uf2_write(uf2_ota_t *ctx, uf2_block_t *block) {
-	if (ctx->seq == 0)
-		return uf2_parse_header(ctx, block, NULL);
-	if (block->not_main_flash || !block->len)
-		// ignore blocks not meant for flashing
-		return UF2_ERR_IGNORE;
-
-	uf2_err_t err = uf2_parse_block(ctx, block, NULL);
-	if (err)
-		return err;
-
-	if (!ctx->part1 && !ctx->part2)
-		// no partitions set at all
-		return UF2_ERR_PART_UNSET;
-
-	fal_partition_t part = uf2_get_target_part(ctx);
-	if (!part)
-		// image is not for current OTA scheme
-		return UF2_ERR_IGNORE;
-
-	if (ctx->ota_idx == 2 && ctx->binpatch_len) {
-		// apply binpatch
-		err = uf2_binpatch(block->data, ctx->binpatch, ctx->binpatch_len);
-		if (err)
-			return err;
-	}
-
-	int ret;
-	// erase sectors if needed
-	if (!uf2_is_erased(ctx, block->addr, block->len)) {
-		ret = fal_partition_erase(part, block->addr, block->len);
-		if (ret < 0)
-			return UF2_ERR_ERASE_FAILED;
-		ctx->erased_offset = block->addr;
-		ctx->erased_length = ret;
-	}
-	// write data to flash
-	ret = fal_partition_write(part, block->addr, block->data, block->len);
-	if (ret < 0)
-		return UF2_ERR_WRITE_FAILED;
-	if (ret != block->len)
-		return UF2_ERR_WRITE_LENGTH;
-	return UF2_ERR_OK;
-}
--- a/arduino/libretuya/libraries/Update/uf2ota/uf2ota.h
+++ b/arduino/libretuya/libraries/Update/uf2ota/uf2ota.h
@@ -1,68 +0,0 @@
-/* Copyright (c) Kuba Szczodrzyński 2022-05-28. */
-
-#pragma once
-
-#ifdef __cplusplus
-extern "C" {
-#endif // __cplusplus
-
-#include "uf2types.h"
-
-/**
- * @brief Create an UF2 OTA context.
- *
- * @param ota_idx target OTA index
- * @param family_id expected family ID
- * @return uf2_ota_t* heap-allocated structure
- */
-uf2_ota_t *uf2_ctx_init(uint8_t ota_idx, uint32_t family_id);
-
-/**
- * @brief Create an UF2 Info structure.
- *
- * @return uf2_info_t* heap-allocated structure
- */
-uf2_info_t *uf2_info_init();
-
-/**
- * @brief Free values in the info structure AND the structure itself.
- *
- * @param info structure to free; may be NULL
- */
-void uf2_info_free(uf2_info_t *info);
-
-/**
- * @brief Check if block is valid.
- *
- * @param ctx context
- * @param block block to check
- * @return uf2_err_t error code; UF2_ERR_OK and UF2_ERR_IGNORE denote valid blocks
- */
-uf2_err_t uf2_check_block(uf2_ota_t *ctx, uf2_block_t *block);
-
-/**
- * @brief Parse header block (LibreTuya UF2 first block).
- *
- * Note: caller should call uf2_check_block() first.
- *
- * @param ctx context
- * @param block block to parse
- * @param info structure to write firmware info, NULL if not used
- * @return uf2_err_t error code
- */
-uf2_err_t uf2_parse_header(uf2_ota_t *ctx, uf2_block_t *block, uf2_info_t *info);
-
-/**
- * @brief Write the block to flash memory.
- *
- * Note: caller should call uf2_check_block() first.
- *
- * @param ctx context
- * @param block block to write
- * @return uf2_err_t error code
- */
-uf2_err_t uf2_write(uf2_ota_t *ctx, uf2_block_t *block);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
--- a/arduino/libretuya/libraries/Update/uf2ota/uf2priv.c
+++ b/arduino/libretuya/libraries/Update/uf2ota/uf2priv.c
@@ -1,146 +0,0 @@
-/* Copyright (c) Kuba Szczodrzyński 2022-05-29. */
-
-#include "uf2priv.h"
-
-uf2_err_t uf2_parse_block(uf2_ota_t *ctx, uf2_block_t *block, uf2_info_t *info) {
-	if (block->block_seq != ctx->seq)
-		// sequence number must match
-		return UF2_ERR_SEQ_MISMATCH;
-	ctx->seq++; // increment sequence number after checking it
-
-	if (!block->has_tags)
-		// no tags in this block, no further processing needed
-		return UF2_ERR_OK;
-
-	if (block->len > (476 - 4 - 4))
-		// at least one tag + last tag must fit
-		return UF2_ERR_DATA_TOO_LONG;
-
-	uint8_t *tags_start = block->data + block->len;
-	uint8_t tags_len	= 476 - block->len;
-	uint8_t tags_pos	= 0;
-	if (block->has_md5)
-		tags_len -= 24;
-
-	ctx->binpatch_len = 0; // binpatch applies to one block only
-	char *part1		  = NULL;
-	char *part2		  = NULL;
-
-	uf2_tag_type_t type;
-	while (tags_pos < tags_len) {
-		uint8_t len = uf2_read_tag(tags_start + tags_pos, &type);
-		if (!len)
-			break;
-		tags_pos += 4; // skip tag header
-		uint8_t *tag = tags_start + tags_pos;
-
-		char **str_dest = NULL; // char* to copy the tag into
-
-		switch (type) {
-			case UF2_TAG_OTA_VERSION:
-				if (tag[0] != 1)
-					return UF2_ERR_OTA_VER;
-				break;
-			case UF2_TAG_FIRMWARE:
-				if (info)
-					str_dest = &(info->fw_name);
-				break;
-			case UF2_TAG_VERSION:
-				if (info)
-					str_dest = &(info->fw_version);
-				break;
-			case UF2_TAG_LT_VERSION:
-				if (info)
-					str_dest = &(info->lt_version);
-				break;
-			case UF2_TAG_BOARD:
-				if (info)
-					str_dest = &(info->board);
-				break;
-			case UF2_TAG_HAS_OTA1:
-				ctx->has_ota1 = tag[0];
-				break;
-			case UF2_TAG_HAS_OTA2:
-				ctx->has_ota2 = tag[0];
-				break;
-			case UF2_TAG_PART_1:
-				str_dest = &(part1);
-				break;
-			case UF2_TAG_PART_2:
-				str_dest = &(part2);
-				break;
-			case UF2_TAG_BINPATCH:
-				ctx->binpatch	  = tag;
-				ctx->binpatch_len = len;
-				break;
-			default:
-				break;
-		}
-
-		if (str_dest) {
-			*str_dest = (char *)zalloc(len + 1);
-			memcpy(*str_dest, tag, len);
-		}
-		// align position to 4 bytes
-		tags_pos += (((len - 1) / 4) + 1) * 4;
-	}
-
-	if (part1 && part2) {
-		// update current target partition
-		uf2_err_t err = uf2_update_parts(ctx, part1, part2);
-		if (err)
-			return err;
-	} else if (part1 || part2) {
-		// only none or both partitions can be specified
-		return UF2_ERR_PART_ONE;
-	}
-
-	return UF2_ERR_OK;
-}
-
-uint8_t uf2_read_tag(const uint8_t *data, uf2_tag_type_t *type) {
-	uint8_t len = data[0];
-	if (!len)
-		return 0;
-	uint32_t tag_type = *((uint32_t *)data);
-	if (!tag_type)
-		return 0;
-	*type = tag_type >> 8; // remove tag length byte
-	return len - 4;
-}
-
-uf2_err_t uf2_update_parts(uf2_ota_t *ctx, char *part1, char *part2) {
-	// reset both target partitions
-	ctx->part1 = NULL;
-	ctx->part2 = NULL;
-	// reset offsets as they probably don't apply to this partition
-	ctx->erased_offset = 0;
-	ctx->erased_length = 0;
-
-	if (part1[0]) {
-		ctx->part1 = (fal_partition_t)fal_partition_find(part1);
-		if (!ctx->part1)
-			return UF2_ERR_PART_404;
-	}
-	if (part2[0]) {
-		ctx->part2 = (fal_partition_t)fal_partition_find(part2);
-		if (!ctx->part2)
-			return UF2_ERR_PART_404;
-	}
-
-	return UF2_ERR_OK;
-}
-
-fal_partition_t uf2_get_target_part(uf2_ota_t *ctx) {
-	if (ctx->ota_idx == 1)
-		return ctx->part1;
-	if (ctx->ota_idx == 2)
-		return ctx->part2;
-	return NULL;
-}
-
-bool uf2_is_erased(uf2_ota_t *ctx, uint32_t offset, uint32_t length) {
-	uint32_t erased_end = ctx->erased_offset + ctx->erased_length;
-	uint32_t end		= offset + length;
-	return (offset >= ctx->erased_offset) && (end <= erased_end);
-}
--- a/arduino/libretuya/libraries/Update/uf2ota/uf2priv.h
+++ b/arduino/libretuya/libraries/Update/uf2ota/uf2priv.h
@@ -1,61 +0,0 @@
-/* Copyright (c) Kuba Szczodrzyński 2022-05-28. */
-
-#pragma once
-
-// include family stdlib APIs
-#include <WVariant.h>
-
-#include "uf2binpatch.h"
-#include "uf2types.h"
-
-/**
- * @brief Parse a block and extract information from tags.
- *
- * @param ctx context
- * @param block block to parse
- * @param info structure to write firmware info, NULL if not used
- * @return uf2_err_t error code
- */
-uf2_err_t uf2_parse_block(uf2_ota_t *ctx, uf2_block_t *block, uf2_info_t *info);
-
-/**
- * @brief Parse a tag.
- *
- * @param data pointer to tag header beginning
- * @param type [out] parsed tag type
- * @return uint8_t parsed tag data length (excl. header); 0 if invalid/last tag
- */
-uint8_t uf2_read_tag(const uint8_t *data, uf2_tag_type_t *type);
-
-/**
- * @brief Update destination partitions in context.
- *
- * Partition names cannot be NULL.
- *
- * Returns UF2_ERR_IGNORE if specified partitions don't match the
- * current OTA index.
- *
- * @param ctx context
- * @param part1 partition 1 name or empty string
- * @param part2 partition 2 name or empty string
- * @return uf2_err_t error code
- */
-uf2_err_t uf2_update_parts(uf2_ota_t *ctx, char *part1, char *part2);
-
-/**
- * @brief Get target flashing partition, depending on OTA index.
- *
- * @param ctx context
- * @return fal_partition_t target partition or NULL if not set
- */
-fal_partition_t uf2_get_target_part(uf2_ota_t *ctx);
-
-/**
- * Check if specified flash memory region was already erased during update.
- *
- * @param ctx context
- * @param offset offset to check
- * @param length length to check
- * @return bool true/false
- */
-bool uf2_is_erased(uf2_ota_t *ctx, uint32_t offset, uint32_t length);
--- a/arduino/libretuya/libraries/Update/uf2ota/uf2types.h
+++ b/arduino/libretuya/libraries/Update/uf2ota/uf2types.h
@@ -1,104 +0,0 @@
-/* Copyright (c) Kuba Szczodrzyński 2022-05-28. */
-
-#pragma once
-
-#include <stdbool.h>
-#include <stdint.h>
-
-#include <fal.h>
-
-#define UF2_MAGIC_1 0x0A324655
-#define UF2_MAGIC_2 0x9E5D5157
-#define UF2_MAGIC_3 0x0AB16F30
-
-#define UF2_BLOCK_SIZE sizeof(uf2_block_t)
-
-typedef struct __attribute__((packed)) {
-	// 32 byte header
-	uint32_t magic1;
-	uint32_t magic2;
-
-	// flags split as bitfields
-	bool not_main_flash : 1;
-	uint16_t dummy1 : 11;
-	bool file_container : 1;
-	bool has_family_id : 1;
-	bool has_md5 : 1;
-	bool has_tags : 1;
-	uint16_t dummy2 : 16;
-
-	uint32_t addr;
-	uint32_t len;
-	uint32_t block_seq;
-	uint32_t block_count;
-	uint32_t file_size; // or familyID;
-	uint8_t data[476];
-	uint32_t magic3;
-} uf2_block_t;
-
-typedef struct {
-	uint32_t seq; // current block sequence number
-
-	uint8_t *binpatch;	  // current block's binpatch (if any) -> pointer inside block->data
-	uint8_t binpatch_len; // binpatch length
-
-	bool has_ota1; // image has any data for OTA1
-	bool has_ota2; // image has any data for OTA2
-
-	uint8_t ota_idx;	// target OTA index
-	uint32_t family_id; // expected family ID
-
-	uint32_t erased_offset; // offset of region erased during update
-	uint32_t erased_length; // length of erased region
-
-	fal_partition_t part1; // OTA1 target partition
-	fal_partition_t part2; // OTA2 target partition
-} uf2_ota_t;
-
-typedef struct {
-	char *fw_name;
-	char *fw_version;
-	char *lt_version;
-	char *board;
-} uf2_info_t;
-
-typedef enum {
-	UF2_TAG_VERSION	  = 0x9FC7BC, // version of firmware file - UTF8 semver string
-	UF2_TAG_PAGE_SIZE = 0x0BE9F7, // page size of target device (32 bit unsigned number)
-	UF2_TAG_SHA2	  = 0xB46DB0, // SHA-2 checksum of firmware (can be of various size)
-	UF2_TAG_DEVICE	  = 0x650D9D, // description of device (UTF8)
-	UF2_TAG_DEVICE_ID = 0xC8A729, // device type identifier
-	// LibreTuya custom, tags
-	UF2_TAG_OTA_VERSION = 0x5D57D0, // format version
-	UF2_TAG_BOARD		= 0xCA25C8, // board name (lowercase code)
-	UF2_TAG_FIRMWARE	= 0x00DE43, // firmware description / name
-	UF2_TAG_BUILD_DATE	= 0x822F30, // build date/time as Unix timestamp
-	UF2_TAG_LT_VERSION	= 0x59563D, // LT version (semver)
-	UF2_TAG_PART_1		= 0x805946, // OTA1 partition name
-	UF2_TAG_PART_2		= 0xA1E4D7, // OTA2 partition name
-	UF2_TAG_HAS_OTA1	= 0xBBD965, // image has any data for OTA1
-	UF2_TAG_HAS_OTA2	= 0x92280E, // image has any data for OTA2
-	UF2_TAG_BINPATCH	= 0xB948DE, // binary patch to convert OTA1->OTA2
-} uf2_tag_type_t;
-
-typedef enum {
-	UF2_OPC_DIFF32 = 0xFE,
-} uf2_opcode_t;
-
-typedef enum {
-	UF2_ERR_OK = 0,
-	UF2_ERR_IGNORE,		   // block should be ignored
-	UF2_ERR_MAGIC,		   // wrong magic numbers
-	UF2_ERR_FAMILY,		   // family ID mismatched
-	UF2_ERR_NOT_HEADER,	   // block is not a header
-	UF2_ERR_OTA_VER,	   // unknown/invalid OTA format version
-	UF2_ERR_OTA_WRONG,	   // no data for current OTA index
-	UF2_ERR_PART_404,	   // no partition with that name
-	UF2_ERR_PART_ONE,	   // only one partition tag in a block
-	UF2_ERR_PART_UNSET,	   // image broken - attempted to write without target partition
-	UF2_ERR_DATA_TOO_LONG, // data too long - tags won't fit
-	UF2_ERR_SEQ_MISMATCH,  // sequence number mismatched
-	UF2_ERR_ERASE_FAILED,  // erasing flash failed
-	UF2_ERR_WRITE_FAILED,  // writing to flash failed
-	UF2_ERR_WRITE_LENGTH,  // wrote fewer data than requested
-} uf2_err_t;
--- a/arduino/libretuya/libraries/mDNS/LwIPmDNS.cpp
+++ b/arduino/libretuya/libraries/mDNS/LwIPmDNS.cpp
@@ -61,6 +61,7 @@ bool mDNS::begin(const char *hostname) {
 	struct netif *netif = netif_list;
 	uint8_t enabled		= 0;
 	while (netif != NULL) {
+		netif->flags |= NETIF_FLAG_IGMP;
 		// TODO: detect mdns_netif_client_id by checking netif_get_client_data()
 		// and finding the requested hostname in struct mdns_host
 		if (netif_is_up(netif) && mdns_resp_add_netif(netif, hostname, 255) == ERR_OK) {
@@ -100,7 +101,7 @@ bool mDNS::addService(char *service, char *proto, uint16_t port) {
 	struct netif *netif = netif_list;
 	while (netif != NULL) {
 		if (netif_is_up(netif)) {
-			mdns_resp_add_service(netif, mdnsInstanceName.c_str(), service, protocol, port, 255, NULL, NULL);
+			mdns_resp_add_service(netif, mdnsInstanceName.c_str(), _service, protocol, port, 255, NULL, NULL);
 		}
 		netif = netif->next;
 	}
--- a/arduino/realtek-ambz/cores/arduino/WInterrupts.c
+++ b/arduino/realtek-ambz/cores/arduino/WInterrupts.c
@@ -10,9 +10,9 @@ static void *gpio_irq_handler_args[PINS_COUNT] = {NULL};
 extern bool pinInvalid(pin_size_t pinNumber);
 extern void pinRemoveMode(pin_size_t pinNumber);

-void gpioIrqHandler(uint32_t id, gpio_irq_event event) {
+static void gpioIrqHandler(uint32_t id, gpio_irq_event event) {
 	if (gpio_irq_handler_list[id] != NULL) {
-		if (gpio_irq_handler_args[id] != NULL)
+		if (gpio_irq_handler_args[id] == NULL)
 			((voidFuncPtr)gpio_irq_handler_list[id])();
 		else
 			((voidFuncPtrParam)gpio_irq_handler_list[id])(gpio_irq_handler_args[id]);
--- a/arduino/realtek-ambz/cores/arduino/main.cpp
+++ b/arduino/realtek-ambz/cores/arduino/main.cpp
@@ -23,8 +23,8 @@ void initArduino() {
 }

 bool startMainTask() {
-	osThreadDef(main_task, osPriorityRealtime, 1, 4096 * 4);
-	main_tid = osThreadCreate(osThread(main_task), NULL);
+	osThreadDef(mainTask, osPriorityRealtime, 1, 4096 * 4);
+	main_tid = osThreadCreate(osThread(mainTask), NULL);
 	osKernelStart();
 	return true;
 }
--- a/boards/SUMMARY.md
+++ b/boards/SUMMARY.md
@@ -21,4 +21,5 @@
 - [WR2LE](../boards/wr2le/README.md)
 - [WR3L](../boards/wr3l/README.md)
 - [WR3LE](../boards/wr3le/README.md)
+- [LSC LMA35](../boards/lsc-lma35/README.md)
 - [Generic - Host-native](../boards/generic-native/README.md)
--- a/boards/_base/beken-72xx.json
+++ b/boards/_base/beken-72xx.json
@@ -1,7 +1,13 @@
 {
 	"build": {
 		"f_cpu": "120000000L",
-		"prefix": "arm-none-eabi-"
+		"prefix": "arm-none-eabi-",
+		"bkota": {
+			"encryption": "aes256",
+			"compression": "gzip",
+			"key": "0123456789ABCDEF0123456789ABCDEF",
+			"iv": "0123456789ABCDEF"
+		}
 	},
 	"connectivity": [
 		"wifi",
--- a/boards/_base/pcb/lsc-lma35.json
+++ b/boards/_base/pcb/lsc-lma35.json
@@ -0,0 +1,102 @@
+{
+	"pcb": {
+		"templates": [
+			"custom-20x24-22",
+			"rf-20mm-type1"
+		],
+		"vars": {
+			"MASK_PRESET": "mask_blue_light",
+			"TRACE_COLOR": "#58839B",
+			"SILK_COLOR": "white",
+			"PINTYPE_VERT": "pin_vert_2mm_cast_nohole",
+			"PINTYPE_HORZ": "pin_horz_2mm_cast_nohole"
+		},
+		"pinout_hidden": "I2S,JTAG,FLASH,SD,SPI,SDA1",
+		"pinout": {
+			"1": {
+				"PWR": 3.3
+			},
+			"2": {
+				"IC": 15,
+				"ARD": "D0"
+			},
+			"3": {
+				"IC": 11,
+				"ARD": "D1"
+			},
+			"4": {
+				"IC": 12,
+				"ARD": "D2"
+			},
+			"5": {
+				"IC": 16,
+				"ARD": "D3"
+			},
+			"6": {
+				"GND": null
+			},
+			"7": {
+				"IC": 18,
+				"ARD": "D4"
+			},
+			"8": {
+				"IC": 29,
+				"ARD": "D5"
+			},
+			"9": {
+				"IC": 17,
+				"ARD": [
+					"D6",
+					"A0"
+				]
+			},
+			"10": {
+				"CTRL": "?"
+			},
+			"11": {
+				"GND": null
+			},
+			"12": {
+				"IC": 24,
+				"ARD": "D7"
+			},
+			"13": {
+				"IC": 25,
+				"ARD": "D8"
+			},
+			"14": {
+				"GND": null
+			},
+			"15": {
+				"IC": 19,
+				"ARD": "D9"
+			},
+			"16": {
+				"IC": 22,
+				"ARD": "D10"
+			},
+			"17": {
+				"IC": 23,
+				"ARD": "D11"
+			},
+			"18": {
+				"IC": 26,
+				"ARD": "D12"
+			},
+			"19": {
+				"GND": null
+			},
+			"20": {
+				"IC": 27,
+				"ARD": "D13"
+			},
+			"21": {
+				"CTRL": "?"
+			},
+			"22": {
+				"IC": 28,
+				"ARD": "D14"
+			}
+		}
+	}
+}
--- a/boards/bw12/README.md
+++ b/boards/bw12/README.md
@@ -12,6 +12,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `bw12`
 MCU          | RTL8710BX
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -22,6 +23,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 11x GPIO, 6x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `bw12`
+
+In `platformio.ini`:
+
+```ini
+[env:bw12]
+platform = libretuya
+board = bw12
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_bw12.svg)
--- a/boards/bw15/README.md
+++ b/boards/bw15/README.md
@@ -9,6 +9,7 @@

 Parameter    | Value
 -------------|--------------------------
+Board code   | `bw15`
 MCU          | RTL8720CF
 Manufacturer | Realtek
 Series       | AmebaZ2
@@ -20,6 +21,19 @@ I/O          | 13x GPIO, 8x PWM, 3x UART
 Wi-Fi        | 802.11 b/g/n
 BLE          | v4.2

+## Usage
+
+**Board code:** `bw15`
+
+In `platformio.ini`:
+
+```ini
+[env:bw15]
+platform = libretuya
+board = bw15
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_bw15.svg)
--- a/boards/cb2s/README.md
+++ b/boards/cb2s/README.md
@@ -10,6 +10,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `cb2s`
 MCU          | BK7231N
 Manufacturer | Beken
 Series       | BK72XX
@@ -21,6 +22,19 @@ I/O          | 11x GPIO, 5x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v5.1

+## Usage
+
+**Board code:** `cb2s`
+
+In `platformio.ini`:
+
+```ini
+[env:cb2s]
+platform = libretuya
+board = cb2s
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_cb2s.svg)
--- a/boards/generic-bk7231n-qfn32-tuya/README.md
+++ b/boards/generic-bk7231n-qfn32-tuya/README.md
@@ -10,6 +10,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `generic-bk7231n-qfn32-tuya`
 MCU          | BK7231N
 Manufacturer | Beken
 Series       | BK72XX
@@ -21,6 +22,19 @@ I/O          | 19x GPIO, 6x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v5.1

+## Usage
+
+**Board code:** `generic-bk7231n-qfn32-tuya`
+
+In `platformio.ini`:
+
+```ini
+[env:generic-bk7231n-qfn32-tuya]
+platform = libretuya
+board = generic-bk7231n-qfn32-tuya
+framework = arduino
+```
+
 ## Arduino Core pin mapping

 No. | Pin       | UART     | I²C      | SPI  | PWM  | Other
--- a/boards/generic-bk7231t-qfn32-tuya/README.md
+++ b/boards/generic-bk7231t-qfn32-tuya/README.md
@@ -10,6 +10,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `generic-bk7231t-qfn32-tuya`
 MCU          | BK7231T
 Manufacturer | Beken
 Series       | BK72XX
@@ -21,6 +22,19 @@ I/O          | 19x GPIO, 6x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v4.2

+## Usage
+
+**Board code:** `generic-bk7231t-qfn32-tuya`
+
+In `platformio.ini`:
+
+```ini
+[env:generic-bk7231t-qfn32-tuya]
+platform = libretuya
+board = generic-bk7231t-qfn32-tuya
+framework = arduino
+```
+
 ## Arduino Core pin mapping

 No. | Pin       | UART     | I²C      | SPI  | PWM  | Other
--- a/boards/generic-native/README.md
+++ b/boards/generic-native/README.md
@@ -5,7 +5,8 @@
 [Product page](https://kuba2k2.github.io/libretuya/)

 Parameter    | Value
-------------|-------
+-------------|-----------------
+Board code   | `generic-native`
 MCU          | NATIVE
 Manufacturer | N/A
 Series       | N/A
@@ -14,6 +15,19 @@ Flash size   | 4 MiB
 RAM size     | 4 MiB
 Voltage      | 5V

+## Usage
+
+**Board code:** `generic-native`
+
+In `platformio.ini`:
+
+```ini
+[env:generic-native]
+platform = libretuya
+board = generic-native
+framework = arduino
+```
+
 ## Flash memory map

 Flash size: 4 MiB / 4,194,304 B / 0x400000
--- a/boards/generic-rtl8710bn-2mb-468k/README.md
+++ b/boards/generic-rtl8710bn-2mb-468k/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `generic-rtl8710bn-2mb-468k`
 MCU          | RTL8710BN
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 17x GPIO, 6x PWM, 2x UART, 2x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `generic-rtl8710bn-2mb-468k`
+
+In `platformio.ini`:
+
+```ini
+[env:generic-rtl8710bn-2mb-468k]
+platform = libretuya
+board = generic-rtl8710bn-2mb-468k
+framework = arduino
+```
+
 ## Arduino Core pin mapping

 No. | Pin        | UART      | I²C      | SPI                  | PWM  | Other
--- a/boards/generic-rtl8710bn-2mb-788k/README.md
+++ b/boards/generic-rtl8710bn-2mb-788k/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `generic-rtl8710bn-2mb-788k`
 MCU          | RTL8710BN
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 17x GPIO, 6x PWM, 2x UART, 2x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `generic-rtl8710bn-2mb-788k`
+
+In `platformio.ini`:
+
+```ini
+[env:generic-rtl8710bn-2mb-788k]
+platform = libretuya
+board = generic-rtl8710bn-2mb-788k
+framework = arduino
+```
+
 ## Arduino Core pin mapping

 No. | Pin        | UART      | I²C      | SPI                  | PWM  | Other
--- a/boards/generic-rtl8720cf-2mb-992k/README.md
+++ b/boards/generic-rtl8720cf-2mb-992k/README.md
@@ -7,7 +7,8 @@
 - [General info](../../docs/platform/realtek/README.md)

 Parameter    | Value
-------------|--------------------------
+-------------|-----------------------------
+Board code   | `generic-rtl8720cf-2mb-992k`
 MCU          | RTL8720CF
 Manufacturer | Realtek
 Series       | AmebaZ2
@@ -19,6 +20,19 @@ I/O          | 20x GPIO, 8x PWM, 3x UART
 Wi-Fi        | 802.11 b/g/n
 BLE          | v4.2

+## Usage
+
+**Board code:** `generic-rtl8720cf-2mb-992k`
+
+In `platformio.ini`:
+
+```ini
+[env:generic-rtl8720cf-2mb-992k]
+platform = libretuya
+board = generic-rtl8720cf-2mb-992k
+framework = arduino
+```
+
 ## Flash memory map

 Flash size: 2 MiB / 2,097,152 B / 0x200000
--- a/boards/lsc-lma35.json
+++ b/boards/lsc-lma35.json
@@ -0,0 +1,29 @@
+{
+	"_base": [
+		"beken-72xx",
+		"beken-7231n",
+		"beken-7231n-tuya",
+		"pcb/ic-bk7231-qfn32",
+		"pcb/lsc-lma35"
+	],
+	"build": {
+		"mcu": "bk7231n",
+		"variant": "lsc-lma35"
+	},
+	"name": "LSC LMA35",
+	"symbol": "LSC LMA35",
+	"url": "https://www.action.com/de-at/p/lsc-smart-connect-outdoor-led-streifen/",
+	"vendor": "Unknown",
+	"pcb": {
+		"symbol": "LMA35"
+	},
+	"doc": {
+		"extra": [
+			"## Information",
+			"This board has no marking on the front side, only something that looks like PCB manufacturing info on the back; thus it was named based on these symbols.",
+			"It can be found in 'LSC Smart Connect Outdoor LED Strip', and is likely custom-made for this product.",
+			"The pinout was established by writing to and probing consecutive GPIOs, using the generic board definition.",
+			"Pins marked with '?' are currently unknown, with a possibility of being CEN. Pin 22 (P1/D14) is also not confirmed."
+		]
+	}
+}
--- a/boards/lsc-lma35/README.md
+++ b/boards/lsc-lma35/README.md
@@ -0,0 +1,89 @@
+# LSC LMA35
+
+*by Unknown*
+
+[Product page](https://www.action.com/de-at/p/lsc-smart-connect-outdoor-led-streifen/)
+
+- [General info](../../docs/platform/beken-72xx/README.md)
+- [Flashing guide](../../docs/platform/beken-72xx/flashing.md)
+- [BkWriter v1.6.0](https://images.tuyacn.com/smart/bk_writer1.60/bk_writer1.60.exe)
+
+Parameter    | Value
+-------------|----------------------------------
+Board code   | `lsc-lma35`
+MCU          | BK7231N
+Manufacturer | Beken
+Series       | BK72XX
+Frequency    | 120 MHz
+Flash size   | 2 MiB
+RAM size     | 256 KiB
+Voltage      | 3.0V - 3.6V
+I/O          | 15x GPIO, 6x PWM, 2x UART, 1x ADC
+Wi-Fi        | 802.11 b/g/n
+Bluetooth    | BLE v5.1
+
+## Usage
+
+**Board code:** `lsc-lma35`
+
+In `platformio.ini`:
+
+```ini
+[env:lsc-lma35]
+platform = libretuya
+board = lsc-lma35
+framework = arduino
+```
+
+## Pinout
+
+![Pinout](pinout_lsc-lma35.svg)
+
+## Arduino Core pin mapping
+
+No. | Pin       | UART     | I²C      | SPI  | PWM  | Other
+----|-----------|----------|----------|------|------|------
+D0  | P26       |          |          |      | PWM5 |
+D1  | P14       |          |          | SCK  |      |
+D2  | P16       |          |          | MOSI |      |
+D3  | P24       |          |          |      | PWM4 |
+D4  | P22       |          |          |      |      | TDI
+D5  | P0        | UART2_TX | I2C2_SCL |      |      |
+D6  | P23       |          |          |      |      | TDO
+D7  | P8        |          |          |      | PWM2 |
+D8  | P9        |          |          |      | PWM3 |
+D9  | P21       |          | I2C1_SDA |      |      | TMS
+D10 | P6        |          |          |      | PWM0 |
+D11 | P7        |          |          |      | PWM1 |
+D12 | P10       | UART1_RX |          |      |      |
+D13 | P11       | UART1_TX |          |      |      |
+D14 | P1        | UART2_RX | I2C2_SDA |      |      |
+A0  | P23, ADC3 |          |          |      |      |
+
+## Flash memory map
+
+Flash size: 2 MiB / 2,097,152 B / 0x200000
+
+Hex values are in bytes.
+
+Name            | Start    | Length             | End
+----------------|----------|--------------------|---------
+Bootloader      | 0x000000 | 68 KiB / 0x11000   | 0x011000
+App Image       | 0x011000 | 1.1 MiB / 0x119000 | 0x12A000
+OTA Image       | 0x12A000 | 664 KiB / 0xA6000  | 0x1D0000
+TLV Store       | 0x1D0000 | 4 KiB / 0x1000     | 0x1D1000
+Network Data    | 0x1D1000 | 8 KiB / 0x2000     | 0x1D3000
+Key-Value Store | 0x1D3000 | 32 KiB / 0x8000    | 0x1DB000
+User Data       | 0x1DB000 | 148 KiB / 0x25000  | 0x200000
+
+Bootloader and app partitions contain CRC16 sums every 32 bytes. That results in the actual flash offsets/sizes not aligned to sector boundaries. To simplify calculations, the values shown in the table (extracted from bootloader's partition table) were aligned to 4096 bytes.
+
+## Information
+
+This board has no marking on the front side, only something that looks like PCB manufacturing info on the back; thus it was named based on these symbols.
+
+It can be found in 'LSC Smart Connect Outdoor LED Strip', and is likely custom-made for this product.
+
+The pinout was established by writing to and probing consecutive GPIOs, using the generic board definition.
+
+Pins marked with '?' are currently unknown, with a possibility of being CEN. Pin 22 (P1/D14) is also not confirmed.
--- a/boards/lsc-lma35/pinout_lsc-lma35.svg
+++ b/boards/lsc-lma35/pinout_lsc-lma35.svg
@@ -0,0 +1,325 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:xlink="http://www.w3.org/1999/xlink" baseProfile="full" height="500" version="1.1" viewBox="0,0,85.33333333333333,41.666666666666664" width="1024">
+    <defs/>
+    <rect fill="white" height="41.666666666666664" stroke="black" stroke-width="0.1" width="85.33333333333333" x="0" y="0"/>
+    <linearGradient gradientUnits="objectBoundingBox" id="id1" x1="1.0" x2="0.0" y1="0.0" y2="1.0">
+        <stop offset="0%" stop-color="#47a8cd"/>
+        <stop offset="100%" stop-color="#008fb5"/>
+    </linearGradient>
+    <rect fill="url(#id1) none" height="23.9" stroke="#b5a739" stroke-width="0.1" width="19.9" x="32.66666666666666" y="4.433333333333333"/>
+    <rect fill="#e5b472" height="1.2" id="custom-20x24-22.front.left.pin1.trace" width="0.7" x="32.61666666666666" y="12.133333333333333"/>
+    <circle cx="32.61666666666666" cy="12.733333333333333" fill="#fff" id="custom-20x24-22.front.left.pin1.cast" r="0.35"/>
+    <rect fill="#e5b472" height="1.2" id="custom-20x24-22.front.left.pin2.trace" width="0.7" x="32.61666666666666" y="14.133333333333333"/>
+    <circle cx="32.61666666666666" cy="14.733333333333333" fill="#fff" id="custom-20x24-22.front.left.pin2.cast" r="0.35"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="58.016666666666666" y="12.733333333333333">GND</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="32.76666666666666" y="30.383333333333333"/>
+    <g transform="translate(28.981026020611555,29.683333333333334)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="30.466666666666658" y="30.483333333333334">P21</text>
+    <g transform="translate(25.98102602061156,29.683333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="27.16666666666666" y="30.483333333333334">D9</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="32.76666666666666" y="32.38333333333333"/>
+    <g transform="translate(28.981026020611555,31.683333333333334)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="30.466666666666658" y="32.483333333333334">P6</text>
+    <g transform="translate(25.98102602061156,31.683333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="27.16666666666666" y="32.483333333333334">D10</text>
+    <g transform="translate(22.381026020611557,31.683333333333334)">
+        <rect fill="#afa35e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="23.86666666666666" y="32.483333333333334">PWM0</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="32.76666666666666" y="34.38333333333333"/>
+    <g transform="translate(28.981026020611555,33.68333333333334)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="30.466666666666658" y="34.483333333333334">P7</text>
+    <g transform="translate(25.98102602061156,33.68333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="27.16666666666666" y="34.483333333333334">D11</text>
+    <g transform="translate(22.381026020611557,33.68333333333334)">
+        <rect fill="#afa35e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="23.86666666666666" y="34.483333333333334">PWM1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="32.76666666666666" y="36.38333333333333"/>
+    <g transform="translate(28.981026020611555,35.68333333333334)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="30.466666666666658" y="36.483333333333334">P10</text>
+    <g transform="translate(25.98102602061156,35.68333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="27.16666666666666" y="36.483333333333334">D12</text>
+    <g transform="translate(22.381026020611557,35.68333333333334)">
+        <rect fill="#dcd4ee" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="23.86666666666666" y="36.483333333333334">RX1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="49.86666666666666" y="36.38333333333333"/>
+    <g transform="translate(53.28102602061156,35.68333333333334)">
+        <rect fill="#000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="54.766666666666666" y="36.483333333333334">GND</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="49.86666666666666" y="34.38333333333333"/>
+    <g transform="translate(53.28102602061156,33.68333333333334)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="54.766666666666666" y="34.483333333333334">P11</text>
+    <g transform="translate(56.881026020611564,33.68333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="58.06666666666666" y="34.483333333333334">D13</text>
+    <g transform="translate(59.881026020611564,33.68333333333334)">
+        <rect fill="#dcd4ee" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="61.36666666666667" y="34.483333333333334">TX1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="49.86666666666666" y="32.38333333333333"/>
+    <g transform="translate(53.28102602061156,31.683333333333334)">
+        <rect fill="#ed602e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="54.766666666666666" y="32.483333333333334">?</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="49.86666666666666" y="30.383333333333333"/>
+    <g transform="translate(53.28102602061156,29.683333333333334)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="54.766666666666666" y="30.483333333333334">P1</text>
+    <g transform="translate(56.881026020611564,29.683333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="58.06666666666666" y="30.483333333333334">D14</text>
+    <g transform="translate(59.881026020611564,29.683333333333334)">
+        <rect fill="#dcd4ee" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="61.36666666666667" y="30.483333333333334">RX2</text>
+    <g transform="translate(63.481026020611566,29.683333333333334)">
+        <rect fill="#f95" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="64.96666666666667" y="30.483333333333334">SDA2</text>
+</svg>
--- a/boards/lsc-lma35/pins_arduino.h
+++ b/boards/lsc-lma35/pins_arduino.h
@@ -0,0 +1 @@
+#include "variant.h"
--- a/boards/lsc-lma35/variant.cpp
+++ b/boards/lsc-lma35/variant.cpp
@@ -0,0 +1,42 @@
+/* This file was auto-generated from lsc-lma35.json using boardgen */
+
+#include <Arduino.h>
+
+extern "C" {
+
+// clang-format off
+PinInfo pinTable[PINS_COUNT] = {
+	// D0: P26, PWM5, IRDA
+	{GPIO26, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D1: P14, SD_CLK, SCK
+	{GPIO14, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D2: P16, SD_D0, MOSI
+	{GPIO16, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D3: P24, PWM4
+	{GPIO24, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D4: P22, TDI, FSI
+	{GPIO22, PIN_GPIO | PIN_IRQ | PIN_JTAG,                     PIN_NONE, 0},
+	// D5: P0, UART2_TX, I2C2_SCL
+	{GPIO0,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART,           PIN_NONE, 0},
+	// D6: P23, ADC3, TDO, FSO
+	{GPIO23, PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_JTAG,           PIN_NONE, 0},
+	// D7: P8, PWM2
+	{GPIO8,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D8: P9, PWM3
+	{GPIO9,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D9: P21, I2C1_SDA, TMS, MCLK, ^FCS
+	{GPIO21, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_I2S | PIN_JTAG, PIN_NONE, 0},
+	// D10: P6, PWM0
+	{GPIO6,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D11: P7, PWM1
+	{GPIO7,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D12: P10, UART1_RX
+	{GPIO10, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D13: P11, UART1_TX
+	{GPIO11, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D14: P1, UART2_RX, I2C2_SDA
+	{GPIO1,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART,           PIN_NONE, 0},
+};
+// clang-format on
+
+} // extern "C"
--- a/boards/lsc-lma35/variant.h
+++ b/boards/lsc-lma35/variant.h
@@ -0,0 +1,37 @@
+/* This file was auto-generated from lsc-lma35.json using boardgen */
+
+#pragma once
+
+#include <WVariant.h>
+
+// clang-format off
+
+// Pins
+// ----
+#define PINS_COUNT         15
+#define NUM_DIGITAL_PINS   15
+#define NUM_ANALOG_INPUTS  1
+#define NUM_ANALOG_OUTPUTS 0
+
+// Analog pins
+// -----------
+#define PIN_A0 6u     // GPIO23
+#define A0     PIN_A0
+
+// SPI Interfaces
+// --------------
+#define SPI_INTERFACES_COUNT 0
+
+// Wire Interfaces
+// ---------------
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE2_SCL         5u  // GPIO0
+#define PIN_WIRE2_SDA         14u // GPIO1
+
+// Serial ports
+// ------------
+#define SERIAL_INTERFACES_COUNT 2
+#define PIN_SERIAL1_RX          12u // GPIO10
+#define PIN_SERIAL1_TX          13u // GPIO11
+#define PIN_SERIAL2_RX          14u // GPIO1
+#define PIN_SERIAL2_TX          5u  // GPIO0
--- a/boards/wb2l/README.md
+++ b/boards/wb2l/README.md
@@ -10,6 +10,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wb2l`
 MCU          | BK7231T
 Manufacturer | Beken
 Series       | BK72XX
@@ -21,6 +22,19 @@ I/O          | 13x GPIO, 5x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v4.2

+## Usage
+
+**Board code:** `wb2l`
+
+In `platformio.ini`:
+
+```ini
+[env:wb2l]
+platform = libretuya
+board = wb2l
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wb2l.svg)
--- a/boards/wb2s/README.md
+++ b/boards/wb2s/README.md
@@ -10,6 +10,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wb2s`
 MCU          | BK7231T
 Manufacturer | Beken
 Series       | BK72XX
@@ -21,6 +22,19 @@ I/O          | 14x GPIO, 6x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v4.2

+## Usage
+
+**Board code:** `wb2s`
+
+In `platformio.ini`:
+
+```ini
+[env:wb2s]
+platform = libretuya
+board = wb2s
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wb2s.svg)
--- a/boards/wb3l/README.md
+++ b/boards/wb3l/README.md
@@ -10,6 +10,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wb3l`
 MCU          | BK7231T
 Manufacturer | Beken
 Series       | BK72XX
@@ -21,6 +22,19 @@ I/O          | 16x GPIO, 6x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v4.2

+## Usage
+
+**Board code:** `wb3l`
+
+In `platformio.ini`:
+
+```ini
+[env:wb3l]
+platform = libretuya
+board = wb3l
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wb3l.svg)
--- a/boards/wb3s/README.md
+++ b/boards/wb3s/README.md
@@ -10,6 +10,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wb3s`
 MCU          | BK7231T
 Manufacturer | Beken
 Series       | BK72XX
@@ -21,6 +22,19 @@ I/O          | 15x GPIO, 6x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v4.2

+## Usage
+
+**Board code:** `wb3s`
+
+In `platformio.ini`:
+
+```ini
+[env:wb3s]
+platform = libretuya
+board = wb3s
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wb3s.svg)
--- a/boards/wr2/README.md
+++ b/boards/wr2/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|---------------------------------
+Board code   | `wr2`
 MCU          | RTL8710BN
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 7x GPIO, 5x PWM, 1x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr2`
+
+In `platformio.ini`:
+
+```ini
+[env:wr2]
+platform = libretuya
+board = wr2
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr2.svg)
--- a/boards/wr2e/README.md
+++ b/boards/wr2e/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|---------------------------------
+Board code   | `wr2e`
 MCU          | RTL8710BN
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 7x GPIO, 4x PWM, 1x UART, 2x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr2e`
+
+In `platformio.ini`:
+
+```ini
+[env:wr2e]
+platform = libretuya
+board = wr2e
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr2e.svg)
--- a/boards/wr2l/README.md
+++ b/boards/wr2l/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|---------------------------------
+Board code   | `wr2l`
 MCU          | RTL8710BX
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 5x GPIO, 4x PWM, 1x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr2l`
+
+In `platformio.ini`:
+
+```ini
+[env:wr2l]
+platform = libretuya
+board = wr2l
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr2l.svg)
--- a/boards/wr2le/README.md
+++ b/boards/wr2le/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|-------------------------
+Board code   | `wr2le`
 MCU          | RTL8710BX
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 5x GPIO, 5x PWM, 1x UART
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr2le`
+
+In `platformio.ini`:
+
+```ini
+[env:wr2le]
+platform = libretuya
+board = wr2le
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr2le.svg)
--- a/boards/wr3/README.md
+++ b/boards/wr3/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wr3`
 MCU          | RTL8710BN
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 11x GPIO, 6x PWM, 2x UART, 2x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr3`
+
+In `platformio.ini`:
+
+```ini
+[env:wr3]
+platform = libretuya
+board = wr3
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr3.svg)
--- a/boards/wr3e/README.md
+++ b/boards/wr3e/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wr3e`
 MCU          | RTL8710BN
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 11x GPIO, 6x PWM, 2x UART, 2x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr3e`
+
+In `platformio.ini`:
+
+```ini
+[env:wr3e]
+platform = libretuya
+board = wr3e
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr3e.svg)
--- a/boards/wr3l/README.md
+++ b/boards/wr3l/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wr3l`
 MCU          | RTL8710BX
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 11x GPIO, 6x PWM, 2x UART, 2x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr3l`
+
+In `platformio.ini`:
+
+```ini
+[env:wr3l]
+platform = libretuya
+board = wr3l
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr3l.svg)
--- a/boards/wr3le/README.md
+++ b/boards/wr3le/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|----------------------------------
+Board code   | `wr3le`
 MCU          | RTL8710BX
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 11x GPIO, 6x PWM, 2x UART, 2x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr3le`
+
+In `platformio.ini`:
+
+```ini
+[env:wr3le]
+platform = libretuya
+board = wr3le
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr3le.svg)
--- a/boards/wr3n/README.md
+++ b/boards/wr3n/README.md
@@ -11,6 +11,7 @@

 Parameter    | Value
 -------------|---------------------------------
+Board code   | `wr3n`
 MCU          | RTL8710BN
 Manufacturer | Realtek
 Series       | AmebaZ
@@ -21,6 +22,19 @@ Voltage      | 3.0V - 3.6V
 I/O          | 9x GPIO, 5x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n

+## Usage
+
+**Board code:** `wr3n`
+
+In `platformio.ini`:
+
+```ini
+[env:wr3n]
+platform = libretuya
+board = wr3n
+framework = arduino
+```
+
 ## Pinout

 ![Pinout](pinout_wr3n.svg)
--- a/builder/arduino-common.py
+++ b/builder/arduino-common.py
@@ -76,6 +76,19 @@ env.AddLibrary(
    ],
 )

+# Sources - uf2ota library
+ltchiptool_dir = platform.get_package_dir(f"tool-ltchiptool")
+env.AddLibrary(
+    name="uf2ota",
+    base_dir=ltchiptool_dir,
+    srcs=[
+        "+<uf2ota/*.c>",
+    ],
+    includes=[
+        "+<.>",
+    ],
+)
+
 # Sources - board variant
 env.AddLibrary(
    name="board_${VARIANT}",
--- a/builder/frameworks/beken-72xx-sdk.py
+++ b/builder/frameworks/beken-72xx-sdk.py
@@ -7,6 +7,12 @@ from SCons.Script import Builder, DefaultEnvironment
 env = DefaultEnvironment()
 board = env.BoardConfig()

+# Install PyCryptodome for OTA packaging with AES
+try:
+    import Cryptodome
+except ImportError:
+    env.Execute("$PYTHONEXE -m pip install pycryptodomex")
+
 ROOT_DIR = join("$SDK_DIR", "beken378")
 APP_DIR = join(ROOT_DIR, "app")
 DRIVER_DIR = join(ROOT_DIR, "driver")
@@ -350,9 +356,6 @@ env.AddLibrary(
        "+<lwip-2.0.2/src/core/ipv6/*.c>",
        "+<lwip-2.0.2/src/netif/ethernet.c>",
        "+<dhcpd/*.c>",
-        # use ethernetif.c from AliOS since it enables netif IGMP flag
-        "-<lwip-2.0.2/port/ethernetif.c>",
-        "+<$SDK_DIR/beken378/alios/lwip-2.0.2/port/ethernetif.c>",
    ],
    includes=[
        "+<lwip-2.0.2/port>",
@@ -587,7 +590,7 @@ env.BuildLibraries()
 # Main firmware outputs and actions
 env.Replace(
    # linker command (encryption + packaging)
-    LINK="${LINK2BIN} ${VARIANT} '' ''",
+    LINK="${LTCHIPTOOL} link2bin ${VARIANT} '' ''",
    # UF2OTA input list
    UF2OTA=[
        # app binary image (enc+crc), OTA1 (uploader) only
@@ -604,5 +607,12 @@ env.Replace(
            "",  # not used for OTA2
            "",
        ),
+        # OTA RBL package, OTA2 (uf2ota lib) only
+        (
+            "",  # not used for OTA1
+            "",
+            "download",
+            "${BUILD_DIR}/${MCULC}_app.ota.rbl",
+        ),
    ],
 )
--- a/builder/frameworks/realtek-ambz-sdk.py
+++ b/builder/frameworks/realtek-ambz-sdk.py
@@ -294,7 +294,7 @@ env.BuildLibraries()
 # Main firmware outputs and actions
 env.Replace(
    # linker command (dual .bin outputs)
-    LINK="${LINK2BIN} ${VARIANT} xip1 xip2",
+    LINK="${LTCHIPTOOL} link2bin ${VARIANT} xip1 xip2",
    # default output .bin name
    IMG_FW="image_${FLASH_OTA1_OFFSET}.ota1.bin",
    # UF2OTA input list
--- a/builder/utils/env.py
+++ b/builder/utils/env.py
@@ -2,16 +2,15 @@

 from os.path import join

+from ltchiptool import Family
 from SCons.Script import DefaultEnvironment

-from tools.util.platform import get_family
-
 env = DefaultEnvironment()


 def env_add_defaults(env, platform, board):
    # Get Family object for this board
-    family = get_family(short_name=board.get("build.family"))
+    family = Family.get(short_name=board.get("build.family"))
    # Default environment variables
    vars = dict(
        SDK_DIR=platform.get_package_dir(family.framework),
@@ -36,10 +35,8 @@ def env_add_defaults(env, platform, board):
        VARIANT=board.get("build.variant"),
        LDSCRIPT_SDK=board.get("build.ldscript_sdk"),
        LDSCRIPT_ARDUINO=board.get("build.ldscript_arduino"),
-        # Link2Bin tool
-        LINK2BIN='"${PYTHONEXE}" "${LT_DIR}/tools/link2bin.py"',
-        UF2OTA_PY='"${PYTHONEXE}" "${LT_DIR}/tools/uf2ota/uf2ota.py"',
-        UF2UPLOAD_PY='"${PYTHONEXE}" "${LT_DIR}/tools/upload/uf2upload.py"',
+        # ltchiptool variables
+        LTCHIPTOOL='"${PYTHONEXE}" -m ltchiptool',
        # Fix for link2bin to get tmpfile name in argv
        LINKCOM="${LINK} ${LINKARGS}",
        LINKARGS="${TEMPFILE('-o $TARGET $LINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS $_LIBFLAGS', '$LINKCOMSTR')}",
--- a/builder/utils/uf2.py
+++ b/builder/utils/uf2.py
@@ -35,14 +35,13 @@ def env_uf2ota(env, *args, **kwargs):
    env["UF2OUT_BASE"] = basename(output)

    cmd = [
-        "@${UF2OTA_PY}",
+        "@${LTCHIPTOOL} uf2 write",
        f'--output "{output}"',
        "--family ${FAMILY}",
        "--board ${VARIANT}",
        f"--version {lt_version}",
        f'--fw "{project_name}:{project_version}"',
        f"--date {int(now.timestamp())}",
-        "write",
        inputs,
    ]

@@ -76,7 +75,10 @@ def env_uf2upload(env, target):
        return

    # add main upload target
-    env.Replace(UPLOADER="${UF2UPLOAD_PY}", UPLOADCMD="${UPLOADER} ${UPLOADERFLAGS}")
+    env.Replace(
+        UPLOADER="${LTCHIPTOOL} uf2 upload",
+        UPLOADCMD="${UPLOADER} ${UPLOADERFLAGS}",
+    )
    actions.append(env.VerboseAction("${UPLOADCMD}", "Uploading ${UF2OUT_BASE}"))
    env.AddPlatformTarget("upload", target, actions, "Upload")

--- a/docs/cloudcutter.md
+++ b/docs/cloudcutter.md
@@ -0,0 +1,40 @@
+# Flashing with tuya-cloudcutter
+
+[`tuya-cloudcutter`](https://github.com/tuya-cloudcutter/tuya-cloudcutter) is a tool that disconnects IoT devices from the Tuya cloud, while also allowing **remote firmware flashing**. This means you can flash ESPHome without even connecting USB-UART to the device.
+
+This is an unofficial guide, that worked for me during testing. The steps may not work for every device; you should also refer to the cloudcutter's manual pages.
+
+**Currently, `tuya-cloudcutter` works for BK7231T and BK7231N only.**
+
+If your device doesn't have a profile yet, it will probably not work. You can contribute by [taking a device dump](https://github.com/tuya-cloudcutter/tuya-cloudcutter#device-dumps) and posting it on cloudcutter's issues page.
+
+## Instructions
+
+### Preparation
+
+1. Get a laptop (or a PC with Wi-Fi) with Linux and Docker installed. This was tested on Ubuntu 20.04, but you should be able to use another Debian-based distribution with NetworkManager.
+	- To install Docker, run `sudo apt-get install docker.io`. When it completes, run `sudo adduser <your username> docker` and reboot the machine.
+	- This was also successfully performed on a VirtualBox VM, with a USB Wi-Fi adapter redirected to the VM.
+2. Install `git`, if you haven't already (`sudo apt-get install git`).
+3. `git clone https://github.com/tuya-cloudcutter/tuya-cloudcutter`
+
+### Firmware building
+
+1. [Compile ESPHome](projects/esphome.md), or your custom firmware based on LibreTuya.
+2. Get the firmware binary, named `bk7231x_app.ota.ug.bin` from the build directory (`.pio/build/<board>/` or `.esphome/build/<board>/.pioenvs/<board>/`).
+3. Put the file to `custom-firmware` of tuya-cloudcutter.
+
+### Pairing and flashing
+
+1. Run `./run_flash.sh` from the cloudcutter directory.
+2. Answer questions about the desired firmware file, the device vendor and profile.
+3. Put the device to AP mode: (**)
+	- Bulbs (devices without buttons) usually need to be power-cycled a few times, until they start blinking slowly.
+	- Switches, plugs, relays (devices with buttons) usually enable AP after pressing the button for a few seconds.
+	- If the device (bulb or switch LED) is blinking quickly (~2 times per second), do the procedure again.
+4. Cloudcutter will scan for APs, connect to the device and send a payload to it.
+5. The device will most likely hang (not respond). Reboot it again to AP mode (just like in step 9).
+6. Cloudcutter will scan for APs again, configure the device to talk to it, then begin the OTA update.
+7. After around 30 seconds, the device will boot new firmware 👏
+
+\*\* Use a smartphone with the Wi-Fi screen open and scanning, so that you can see if AP mode got enabled.
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@@ -1,59 +0,0 @@
-# Getting started
-
-Using LibreTuya is simple, just like every other PlatformIO development platform.
-
-## For your own projects
-
-If you're developing your own embedded software, and want it to run on LibreTuya-supported chips, the installation is simple:
-
-1. [Install PlatformIO](https://platformio.org/platformio-ide)
-2. `platformio platform install https://github.com/kuba2k2/libretuya`
-3. Create a project, build it and upload to the chip
-
-## Community projects
-
-LibreTuya was developed with popular community projects in mind. Currently, unofficial ESPHome port is available (the PR will hopefully be merged into upstream at some point).
-
-### ESPHome
-
-Because ESPHome does not natively support running on non-ESP chips, you need to use a fork of the project.
-
-Assuming you have PlatformIO, git and Python installed:
-
-1. Open a terminal/cmd.exe, create `esphome` directory and `cd` into it.
-2. `git clone https://github.com/kuba2k2/libretuya-esphome -b platform/libretuya` (you need the `platform/libretuya` branch)
-3. Go to [Boards & CPU list](https://kuba2k2.github.io/libretuya/docs/supported/) and choose your board name.
-4. Create a YAML config file for your device. You can either:
-	- use `python -m esphome wizard yourdevice.yml` - type answers to the six questions the wizard asks
-	- if your board isn't available in the wizard yet, use the manual YAML method below
-	- write a config file manually:
-		```yaml
-		esphome:
-		  name: yourdevice
-
-		libretuya:
-		  board: wr3
-
-		logger:
-		api:
-		  password: ""
-		ota:
-		  password: ""
-
-		wifi:
-		  ssid: "YourWiFiSSID"
-		  password: "SecretPa$$w0rd"
-		  ap:
-		    ssid: "Yourdevice Fallback Hotspot"
-		    password: "Dv2hZMGZRUvy"
-		```
-5. Install LibreTuya: `platformio platform install https://github.com/kuba2k2/libretuya`. This step is necessary, as otherwise ESPHome will try to use a version from the registry, which is often outdated.
-6. Edit the config file to use your installed LT version:
-	```yaml
-	libretuya:
-	  board: wr3
-	  framework:
-	    version: latest
-	```
-7. `python -m esphome compile yourdevice.yml`
-8. The binary file, ready for uploading, is now in `.esphome/build/yourdevice/.pioenvs/yourdevice/`. Refer to your board README to find appropriate flashing instructions.
--- a/docs/getting-started/README.md
+++ b/docs/getting-started/README.md
@@ -0,0 +1,38 @@
+# Getting started
+
+Using LibreTuya is simple, just like every other PlatformIO development platform.
+
+1. [Install PlatformIO](https://platformio.org/platformio-ide)
+2. `platformio platform install https://github.com/kuba2k2/libretuya`
+
+## Board selection
+
+- Go to [Boards & CPU list](../status/supported.md).
+- Find the board your device has (usually, the model number is written on the silkscreen).
+	- If your board isn't available yet, use one of the "Generic" boards that matches the CPU you have.
+- Click on the board name. From the documentation page, note the board code.
+- Use this code to create a PlatformIO project.
+
+## GPIO usage
+
+!!! important
+	This can be confusing at first, so make sure to read this part carefully to understand it.
+
+	Input/output pin numbers in Arduino code (i.e. `digitalWrite()`) use Arduino pin numbers - for example `D1`, `D3`. This is the same as simply `1` or `3`, but it cannot be confused with CPU GPIO numbers.
+
+	On the board pinout page, the purple blocks represent Arduino pins, while the dark red blocks refer to GPIO numbers.
+
+	Projects like ESPHome also use Arduino pin numbering.
+
+## Develop your own project
+
+If you're developing your own embedded software, and want it to run on LibreTuya-supported chips, create a project.
+
+- use PlatformIO IDE (PIO Home -> Open -> New Project)
+- run `pio project init` in your desired project directory
+
+Next, read [Uploading](uploading.md) guide to run your project!
+
+## Run community projects
+
+LibreTuya was developed with popular community projects in mind. Currently, unofficial [ESPHome port](../projects/esphome.md) is available ([the PR](https://github.com/esphome/esphome/pull/3509) will hopefully be merged into upstream at some point).
--- a/docs/getting-started/uploading.md
+++ b/docs/getting-started/uploading.md
@@ -0,0 +1,6 @@
+# Uploading
+
+The uploading/flashing procedure is different for every chip family:
+
+- BK72xx / BK7231 - [click here](../platform/beken-72xx/flashing.md)
+- Realtek AmebaZ (RTL8710BN/BX) - [click here](../platform/realtek-ambz/flashing.md)
--- a/tools/util/markdown.py
+++ b/tools/util/markdown.py
@@ -3,8 +3,6 @@
 from os.path import join
 from typing import List

-from tools.util.fileio import writetext
-

 class Markdown:
    items: List[str]
@@ -15,7 +13,9 @@ class Markdown:
        self.output = join(dir, f"{name}.md")

    def write(self):
-        writetext(self.output, self.items)
+        with open(self.output, "w", encoding="utf-8") as f:
+            f.write("\n".join(self.items))
+            f.write("\n")

    def pad(self, s: str, i: int) -> str:
        return s + " " * (i - len(s))
--- a/docs/ota/README.md
+++ b/docs/ota/README.md
@@ -29,7 +29,7 @@ For easier understanding, these update types will be referred to in this documen
 ## Custom family IDs

 {%
-   include-markdown "../supported_families.md"
+   include-markdown "../status/supported_families.md"
 %}

 ## Extension tags
--- a/docs/flashing-uf2ota.md
+++ b/docs/flashing-uf2ota.md
--- a/docs/platform/beken-72xx/flashing.md
+++ b/docs/platform/beken-72xx/flashing.md
@@ -10,6 +10,14 @@ Downloading is done using UART. For best experience, you should have two USB<->U

 	If you're not using auto-reset, you'll have to reset the chip manually when upload starts (you have 10 seconds to do that).

+- UART1 is used for uploading the code. This adapter will be used by PlatformIO.
+- UART2 allows for log output. You can have a terminal session continuously open on this adapter.
+
+!!! hint
+	If you only have a single adapter, or just want to use the UART1 (upload) port only, you can change the logging port.
+
+	Refer to [Options & config](../../reference/config.md) (`Serial output` section). Set `LT_UART_DEFAULT_PORT` to `1`, which will use UART1 for all output.
+
 ## Automatically - using PlatformIO (recommended)

 LibreTuya has built-in firmware uploaders. Pressing `Upload` in PlatformIO IDE does all the work for you.
@@ -30,7 +38,7 @@ upload_port = COM96
 ## Manually - using `uf2upload`

 {%
-   include-markdown "../../flashing-uf2ota.md"
+   include-markdown "../../ota/flashing.md"
 %}

 ## Manually - using raw binaries/BkWriter
--- a/docs/platform/realtek-ambz/flashing.md
+++ b/docs/platform/realtek-ambz/flashing.md
@@ -3,7 +3,10 @@
 - [Flashing (Tuya manual)](https://developer.tuya.com/en/docs/iot/burn-and-authorize-wr-series-modules?id=Ka789pjc581u8)
 - [ImageTool (AmebaZ/AmebaD)](https://images.tuyacn.com/smart/Image_Tool/Image_Tool.zip)

-Downloading is done using UART. It is required to put the chip into download mode, prior to flashing. This can be done by resetting the chip, while pulling UART2_TX to GND. If successful, the chip should print few garbage characters every second.
+Downloading is done using UART2 (sometimes called Log_UART). Refer to your board documentation to find the correct pins.
+
+!!! important
+	It is required to put the chip into download mode, prior to flashing. This can be done by resetting the chip, while pulling UART2_TX to GND. If successful, the chip should print few garbage characters every second.

 ## Automatically - using PlatformIO (recommended)

@@ -20,7 +23,7 @@ upload_port = COM60
 ## Manually - using `uf2upload`

 {%
-   include-markdown "../../flashing-uf2ota.md"
+   include-markdown "../../ota/flashing.md"
 %}

 ## Manually - using raw binaries/BkWriter
--- a/docs/projects/esphome.md
+++ b/docs/projects/esphome.md
@@ -0,0 +1,96 @@
+# ESPHome
+
+!!! note
+	Read [Getting started](../getting-started/README.md) first.
+
+## Install ESPHome
+
+Because ESPHome does not natively support running on non-ESP chips, you need to use a fork of the project.
+
+Assuming you have PlatformIO, git and Python installed:
+
+1. Open a terminal/cmd.exe, create `esphome` directory and `cd` into it.
+2. `git clone https://github.com/kuba2k2/libretuya-esphome -b platform/libretuya` (you need the `platform/libretuya` branch)
+
+!!! note
+	For Linux users (or if `python -m esphome` doesn't work for you):
+
+	- unistall ESPHome first: `pip uninstall esphome`
+	- install the forked version: `pip install -e .`
+
+## Create your device config
+
+1. Go to [Boards & CPU list](https://kuba2k2.github.io/libretuya/docs/supported/), click on your board and remember your board code.
+2. Create a YAML config file for your device. You can either:
+	- use `python -m esphome wizard yourdevice.yml` - type answers to the six questions the wizard asks, OR:
+	- if your board isn't available in the wizard yet, use the manual YAML method below
+	- write a config file manually:
+		```yaml
+		esphome:
+		  name: yourdevice
+
+		libretuya:
+		  board: wr3  # THIS IS YOUR BOARD CODE
+		  framework:
+		  	version: latest
+
+		logger:
+		api:
+		  password: ""
+		ota:
+		  password: ""
+
+		wifi:
+		  ssid: "YourWiFiSSID"
+		  password: "SecretPa$$w0rd"
+		  ap:
+		    ssid: "Yourdevice Fallback Hotspot"
+		    password: "Dv2hZMGZRUvy"
+		```
+
+## Configuration options
+
+All options from [Options & config](../reference/config.md) can be customized in the `libretuya:` block:
+
+```yaml
+libretuya:
+  framework:
+    version: latest
+  lt_config:
+    LT_LOG_HEAP: 1
+	LT_UART_DEFAULT_PORT: 2
+	LT_UART_SILENT_ALL: 0
+```
+(this is only an example)
+
+Additionally, few options have their dedicated keys:
+
+```yaml
+libretuya:
+  framework:
+    version: latest
+  # verbose/trace/debug/info/warn/error/fatal
+  loglevel: warn
+  # suppress chip's SDK log messages
+  # (same as LT_UART_SILENT_ALL above)
+  sdk_silent: true
+  # disable SWD/JTAG so that all GPIOs can be used
+  # set to false if you want to attach a debugger
+  gpio_recover: true
+```
+(these values are defaults)
+
+## Compile & upload
+
+- `python -m esphome compile yourdevice.yml` - this will only compile the code
+- `python -m esphome upload yourdevice.yml` - this will upload the previously compiled code
+- `python -m esphome run yourdevice.yml` - this will compile and upload the code
+
+!!! info
+	If you want to flash manually:
+
+	The binary file, ready for uploading, will be in `.esphome/build/yourdevice/.pioenvs/yourdevice/`.
+
+	Refer to your board README to find appropriate flashing instructions.
+
+	Or [flash with `tuya-cloudcutter`](../cloudcutter.md).
--- a/docs/reference/config.md
+++ b/docs/reference/config.md
@@ -15,7 +15,7 @@ custom_fw_version = 1.2.0
 ## LibreTuya options

 !!! note
-    See [LibreTuyaConfig.h](../ltapi/_libre_tuya_config_8h_source.md) for most options and their defaults.
+    See [LibreTuyaConfig.h](../../ltapi/_libre_tuya_config_8h_source.md) for most options and their defaults.

 All options are configurable via C++ defines in PlatformIO project file. For example:
 ```ini
--- a/docs/reference/project-structure.md
+++ b/docs/reference/project-structure.md
--- a/docs/implementation-status.md
+++ b/docs/implementation-status.md
@@ -1,7 +1,7 @@
 # Implementation status

 {%
-   include-markdown "../README.md"
+   include-markdown "../../README.md"
   start="\n## Arduino Core support status\n"
   end="\n## License\n"
 %}
--- a/docs/status/supported.md
+++ b/docs/status/supported.md
@@ -26,7 +26,7 @@ A list of chip families currently supported by this project.
 !!! note
    The term *family* was chosen over *platform*, in order to reduce possible confusion between LibreTuya supported "platforms" and PlatformIO's "platform", as an entire package. *Family* is also more compatible with the UF2 term.

-The following list corresponds to UF2 OTA format family names, and is also [available as JSON](../families.json). The IDs are also present in [ChipType.h](../ltapi/_chip_type_8h_source.md).
+The following list corresponds to UF2 OTA format family names, and is also [available as JSON](../../families.json). The IDs are also present in [ChipType.h](../../ltapi/_chip_type_8h_source.md).

 {%
   include-markdown "supported_families.md"
--- a/docs/status/supported_boards.md
+++ b/docs/status/supported_boards.md
@@ -0,0 +1,32 @@
+<!-- This file is auto-generated -->
+
+Name                                                                      | MCU       | Flash | RAM     | Pins*       | Wi-Fi | BLE | ZigBee | Family name
+--------------------------------------------------------------------------|-----------|-------|---------|-------------|-------|-----|--------|----------------
+**Generic**                                                               |           |       |         |             |       |     |        |
+[BK7231N (Tuya QFN32)](../../boards/generic-bk7231n-qfn32-tuya/README.md) | BK7231N   | 2 MiB | 256 KiB | 19 (19 I/O) | ✔️    | ✔️  | ❌      | `beken-7231n`
+[BK7231T (Tuya QFN32)](../../boards/generic-bk7231t-qfn32-tuya/README.md) | BK7231T   | 2 MiB | 256 KiB | 19 (19 I/O) | ✔️    | ✔️  | ❌      | `beken-7231t`
+[RTL8710BN (2M/468k)](../../boards/generic-rtl8710bn-2mb-468k/README.md)  | RTL8710BN | 2 MiB | 256 KiB | 18 (18 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+[RTL8710BN (2M/788k)](../../boards/generic-rtl8710bn-2mb-788k/README.md)  | RTL8710BN | 2 MiB | 256 KiB | 18 (18 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+[RTL8720CF (2M/992k)](../../boards/generic-rtl8720cf-2mb-992k/README.md)  | RTL8720CF | 2 MiB | 256 KiB | 20 (20 I/O) | ✔️    | ✔️  | ❌      | `realtek-ambz2`
+**Ai-Thinker Co., Ltd.**                                                  |           |       |         |             |       |     |        |
+[BW12](../../boards/bw12/README.md)                                       | RTL8710BX | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+[BW15](../../boards/bw15/README.md)                                       | RTL8720CF | 2 MiB | 256 KiB | 16 (13 I/O) | ✔️    | ✔️  | ❌      | `realtek-ambz2`
+**Tuya Inc.**                                                             |           |       |         |             |       |     |        |
+[CB2S](../../boards/cb2s/README.md)                                       | BK7231N   | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ✔️  | ❌      | `beken-7231n`
+[WB2L](../../boards/wb2l/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 7 (5 I/O)   | ✔️    | ✔️  | ❌      | `beken-7231t`
+[WB2S](../../boards/wb2s/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ✔️  | ❌      | `beken-7231t`
+[WB3L](../../boards/wb3l/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 21 (17 I/O) | ✔️    | ✔️  | ❌      | `beken-7231t`
+[WB3S](../../boards/wb3s/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 22 (16 I/O) | ✔️    | ✔️  | ❌      | `beken-7231t`
+[WR2](../../boards/wr2/README.md)                                         | RTL8710BN | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR2E](../../boards/wr2e/README.md)                                       | RTL8710BN | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR3](../../boards/wr3/README.md)                                         | RTL8710BN | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR3E](../../boards/wr3e/README.md)                                       | RTL8710BN | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR3N](../../boards/wr3n/README.md)                                       | RTL8710BN | 2 MiB | 256 KiB | 16 (10 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR2L](../../boards/wr2l/README.md)                                       | RTL8710BX | 2 MiB | 256 KiB | 7 (5 I/O)   | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR2LE](../../boards/wr2le/README.md)                                     | RTL8710BX | 2 MiB | 256 KiB | 7 (5 I/O)   | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR3L](../../boards/wr3l/README.md)                                       | RTL8710BX | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+[WR3LE](../../boards/wr3le/README.md)                                     | RTL8710BX | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
+**Unknown**                                                               |           |       |         |             |       |     |        |
+[LSC LMA35](../../boards/lsc-lma35/README.md)                             | BK7231N   | 2 MiB | 256 KiB | 22 (15 I/O) | ✔️    | ✔️  | ❌      | `beken-7231n`
+**N/A**                                                                   |           |       |         |             |       |     |        |
+[Native](../../boards/generic-native/README.md)                           | NATIVE    | 4 MiB | 4 MiB   | -           | ✔️    | ❌   | ❌      | `host-native`
--- a/docs/status/supported_chips.md
+++ b/docs/status/supported_chips.md
--- a/docs/status/supported_families.md
+++ b/docs/status/supported_families.md
--- a/docs/status/unsupported_boards_tuya_all.md
+++ b/docs/status/unsupported_boards_tuya_all.md
--- a/docs/supported_boards.md
+++ b/docs/supported_boards.md
@@ -1,30 +0,0 @@
-<!-- This file is auto-generated -->
-
-Name                                                                   | MCU       | Flash | RAM     | Pins*       | Wi-Fi | BLE | ZigBee | Family name
-----------------------------------------------------------------------|-----------|-------|---------|-------------|-------|-----|--------|----------------
-**Generic**                                                            |           |       |         |             |       |     |        |
-[BK7231N (Tuya QFN32)](../boards/generic-bk7231n-qfn32-tuya/README.md) | BK7231N   | 2 MiB | 256 KiB | 19 (19 I/O) | ✔️    | ✔️  | ❌      | `beken-7231n`
-[BK7231T (Tuya QFN32)](../boards/generic-bk7231t-qfn32-tuya/README.md) | BK7231T   | 2 MiB | 256 KiB | 19 (19 I/O) | ✔️    | ✔️  | ❌      | `beken-7231t`
-[RTL8710BN (2M/468k)](../boards/generic-rtl8710bn-2mb-468k/README.md)  | RTL8710BN | 2 MiB | 256 KiB | 18 (18 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-[RTL8710BN (2M/788k)](../boards/generic-rtl8710bn-2mb-788k/README.md)  | RTL8710BN | 2 MiB | 256 KiB | 18 (18 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-[RTL8720CF (2M/992k)](../boards/generic-rtl8720cf-2mb-992k/README.md)  | RTL8720CF | 2 MiB | 256 KiB | 20 (20 I/O) | ✔️    | ✔️  | ❌      | `realtek-ambz2`
-**Ai-Thinker Co., Ltd.**                                               |           |       |         |             |       |     |        |
-[BW12](../boards/bw12/README.md)                                       | RTL8710BX | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-[BW15](../boards/bw15/README.md)                                       | RTL8720CF | 2 MiB | 256 KiB | 16 (13 I/O) | ✔️    | ✔️  | ❌      | `realtek-ambz2`
-**Tuya Inc.**                                                          |           |       |         |             |       |     |        |
-[CB2S](../boards/cb2s/README.md)                                       | BK7231N   | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ✔️  | ❌      | `beken-7231n`
-[WB2L](../boards/wb2l/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 7 (5 I/O)   | ✔️    | ✔️  | ❌      | `beken-7231t`
-[WB2S](../boards/wb2s/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ✔️  | ❌      | `beken-7231t`
-[WB3L](../boards/wb3l/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 21 (17 I/O) | ✔️    | ✔️  | ❌      | `beken-7231t`
-[WB3S](../boards/wb3s/README.md)                                       | BK7231T   | 2 MiB | 256 KiB | 22 (16 I/O) | ✔️    | ✔️  | ❌      | `beken-7231t`
-[WR2](../boards/wr2/README.md)                                         | RTL8710BN | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR2E](../boards/wr2e/README.md)                                       | RTL8710BN | 2 MiB | 256 KiB | 11 (8 I/O)  | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR3](../boards/wr3/README.md)                                         | RTL8710BN | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR3E](../boards/wr3e/README.md)                                       | RTL8710BN | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR3N](../boards/wr3n/README.md)                                       | RTL8710BN | 2 MiB | 256 KiB | 16 (10 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR2L](../boards/wr2l/README.md)                                       | RTL8710BX | 2 MiB | 256 KiB | 7 (5 I/O)   | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR2LE](../boards/wr2le/README.md)                                     | RTL8710BX | 2 MiB | 256 KiB | 7 (5 I/O)   | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR3L](../boards/wr3l/README.md)                                       | RTL8710BX | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-[WR3LE](../boards/wr3le/README.md)                                     | RTL8710BX | 2 MiB | 256 KiB | 16 (12 I/O) | ✔️    | ❌   | ❌      | `realtek-ambz`
-**N/A**                                                                |           |       |         |             |       |     |        |
-[Native](../boards/generic-native/README.md)                           | NATIVE    | 4 MiB | 4 MiB   | -           | ✔️    | ❌   | ❌      | `host-native`
--- a/docs/update_docs.py
+++ b/docs/update_docs.py
@@ -4,25 +4,17 @@ import sys
 from os.path import dirname, join

 sys.path.append(join(dirname(__file__), ".."))
+
 import re
-from typing import Dict, List, Set, Tuple
+from typing import Dict, List, Set

 import colorama
 from colorama import Fore, Style
+from ltchiptool import Board, Family
+from ltchiptool.util import readjson, readtext, sizeof
+from markdown import Markdown

-from tools.util.fileio import readjson, readtext
-from tools.util.markdown import Markdown
-from tools.util.obj import get, sizeof
-from tools.util.platform import (
-    get_board_list,
-    get_board_manifest,
-    get_families,
-    get_family,
-)
-
-
-def load_boards() -> Dict[str, dict]:
-    return {board: get_board_manifest(board) for board in get_board_list()}
+OUTPUT = join(dirname(__file__), "status")


 def load_chip_type_h() -> str:
@@ -41,24 +33,15 @@ def load_chip_type_h() -> str:
    return code


-def check_mcus(boards: List[Tuple[str, dict]]) -> bool:
-    for board_name, board in boards:
+def check_mcus(boards: List[Board]) -> bool:
+    for board in boards:
        # check if all boards' MCUs are defined in families.json
-        family_name: str = get(board, "build.family")
-        mcu_name: str = get(board, "build.mcu")
-        family = get_family(short_name=family_name)
-        if not family:
-            print(
-                Fore.RED
-                + f"ERROR: Family '{family_name}' of board '{board_name}' does not exist"
-                + Style.RESET_ALL
-            )
-            return False
-        mcus = [mcu.lower() for mcu in family.mcus]
+        mcu_name: str = board["build.mcu"]
+        mcus = [mcu.lower() for mcu in board.family.mcus]
        if mcu_name not in mcus:
            print(
                Fore.RED
-                + f"ERROR: MCU '{mcu_name}' of board '{board_name}' is not defined for family '{family_name}'"
+                + f"ERROR: MCU '{mcu_name}' of board '{board.name}' is not defined for family '{board.family.name}'"
                + Style.RESET_ALL
            )
            return False
@@ -67,19 +50,19 @@ def check_mcus(boards: List[Tuple[str, dict]]) -> bool:

 def get_family_mcus() -> Set[str]:
    out = []
-    for family in get_families():
+    for family in Family.get_all():
        out += family.mcus
    return set(out)


 def get_family_names() -> Set[str]:
-    return set(family.short_name for family in get_families())
+    return set(family.short_name for family in Family.get_all())


-def get_board_mcus(boards: List[Tuple[str, dict]]) -> Set[str]:
+def get_board_mcus(boards: List[Board]) -> Set[str]:
    out = set()
-    for _, board in boards:
-        mcu_name: str = get(board, "build.mcu")
+    for board in boards:
+        mcu_name: str = board["build.mcu"]
        out.add(mcu_name.upper())
    return out

@@ -101,38 +84,37 @@ def get_enum_families(code: str) -> Set[str]:
    return set(family[2:] for family in get_enum_keys(code, "ChipFamily"))


-def board_sort(tpl):
-    generic = tpl[0].lower().startswith("generic")
-    vendor = get(tpl[1], "vendor")
+def board_json_sort(tpl):
+    return tpl[1]["mcu"], tpl[0]
+
+
+def board_obj_sort(board: Board):
+    generic = board.is_generic
+    vendor = board.vendor
    if vendor == "N/A":
        vendor = "\xff"
        generic = False
    return (
        not generic,  # reverse
        vendor,
-        get(tpl[1], "build.mcu"),
-        get(tpl[1], "mcu"),
-        tpl[0],
+        board["build.mcu"],
+        board["mcu"],
+        board.name,
    )


-def get_board_symbol(board_name: str, board: dict) -> str:
-    symbol = get(board, "symbol")
-    if not symbol and board_name.startswith("generic-"):
-        symbol = board_name[8:]
-    else:
-        symbol = symbol or board_name.upper()
-    return symbol
+def get_board_symbol(board: Board) -> str:
+    return board.symbol or board.generic_name or board.name.upper()


 def write_chips(mcus: List[str]):
-    md = Markdown(dirname(__file__), "supported_chips")
+    md = Markdown(OUTPUT, "supported_chips")
    md.add_list(*mcus)
    md.write()


-def write_boards(boards: List[Tuple[str, dict]]):
-    md = Markdown(dirname(__file__), "supported_boards")
+def write_boards(boards: List[Board]):
+    md = Markdown(OUTPUT, "supported_boards")
    header = [
        "Name",
        "MCU",
@@ -147,34 +129,33 @@ def write_boards(boards: List[Tuple[str, dict]]):
    rows = []

    vendor_prev = ""
-    for board_name, board in boards:
-        family = get_family(short_name=get(board, "build.family"))
+    for board in boards:
        # add board vendor as a row
-        vendor = get(board, "vendor")
+        vendor = board["vendor"]
        if vendor_prev != vendor:
            rows.append([f"**{vendor}**"])
            vendor_prev = vendor
        # count total pin count & IO count
        pins = "-"
-        pinout: Dict[str, dict] = get(board, "pcb.pinout")
+        pinout: Dict[str, dict] = board["pcb.pinout"]
        if pinout:
            pinout = [pin for name, pin in pinout.items() if name.isnumeric()]
            pins_total = len(pinout)
            pins_io = sum(1 for pin in pinout if "ARD" in pin)
            pins = f"{pins_total} ({pins_io} I/O)"
        # format row values
-        symbol = get_board_symbol(board_name, board)
-        board_url = f"[{symbol}](../boards/{board_name}/README.md)"
+        symbol = get_board_symbol(board)
+        board_url = f"[{symbol}](../../boards/{board.name}/README.md)"
        row = [
            board_url,
-            get(board, "build.mcu").upper(),
-            sizeof(get(board, "upload.flash_size")),
-            sizeof(get(board, "upload.maximum_ram_size")),
+            board["build.mcu"].upper(),
+            sizeof(board["upload.flash_size"]),
+            sizeof(board["upload.maximum_ram_size"]),
            pins,
-            "✔️" if "wifi" in get(board, "connectivity") else "❌",
-            "✔️" if "ble" in get(board, "connectivity") else "❌",
-            "✔️" if "zigbee" in get(board, "connectivity") else "❌",
-            f"`{family.name}`",
+            "✔️" if "wifi" in board["connectivity"] else "❌",
+            "✔️" if "ble" in board["connectivity"] else "❌",
+            "✔️" if "zigbee" in board["connectivity"] else "❌",
+            f"`{board.family.name}`",
        ]
        rows.append(row)
    md.add_table(header, *rows)
@@ -186,7 +167,7 @@ def write_unsupported_boards(
    name: str,
    supported: List[str],
 ):
-    md = Markdown(dirname(__file__), name)
+    md = Markdown(OUTPUT, name)
    header = [
        "Name",
        "MCU",
@@ -202,7 +183,7 @@ def write_unsupported_boards(
        series_rows = []
        series_rows.append([f"**{series_name.upper()} Series**"])
        boards = series[series_name]
-        for board_name, board in sorted(boards.items(), key=board_sort):
+        for board_name, board in sorted(boards.items(), key=board_json_sort):
            if board_name in supported:
                continue
            row = [
@@ -223,7 +204,7 @@ def write_unsupported_boards(


 def write_families():
-    md = Markdown(dirname(__file__), "supported_families")
+    md = Markdown(OUTPUT, "supported_families")
    header = [
        "Title",
        "Name (parent)",
@@ -234,7 +215,7 @@ def write_families():
    ]
    rows = []

-    for family in get_families():
+    for family in Family.get_all():
        row = [
            # Title
            "[{}]({})".format(
@@ -272,14 +253,14 @@ def write_families():
    md.write()


-def write_boards_list(boards: List[Tuple[str, dict]]):
+def write_boards_list(boards: List[Board]):
    md = Markdown(dirname(__file__), join("..", "boards", "SUMMARY"))
    items = []
-    for board_name, board in boards:
-        symbol = get_board_symbol(board_name, board)
-        if board_name.startswith("generic-"):
-            symbol = get(board, "name")
-        items.append(f"[{symbol}](../boards/{board_name}/README.md)")
+    for board in boards:
+        symbol = get_board_symbol(board)
+        if board.is_generic:
+            symbol = board["name"]
+        items.append(f"[{symbol}](../boards/{board.name}/README.md)")
    md.add_list(*items)
    md.write()

@@ -287,18 +268,17 @@ def write_boards_list(boards: List[Tuple[str, dict]]):
 if __name__ == "__main__":
    colorama.init()

-    boards = load_boards()
-    boards = sorted(boards.items(), key=board_sort)
+    boards = map(Board, Board.get_list())
+    boards = sorted(boards, key=board_obj_sort)
    code = load_chip_type_h()

    errors = False

-    for name, board in boards:
-        variant = get(board, "build.variant")
-        if name != variant:
+    for board in boards:
+        if board.name != board["source"]:
            print(
                Fore.RED
-                + f"ERROR: Invalid build.variant of '{name}': '{variant}'"
+                + f"ERROR: Invalid build.variant of '{board['source']}': '{board.name}'"
                + Style.RESET_ALL
            )
            errors = True
@@ -345,5 +325,5 @@ if __name__ == "__main__":
        write_unsupported_boards(
            series=data,
            name=f"unsupported_{name}",
-            supported=[tpl[0] for tpl in boards],
+            supported=[board.name for board in boards],
        )
--- a/examples/PinScan/.gitignore
+++ b/examples/PinScan/.gitignore
@@ -0,0 +1 @@
+.pio
--- a/examples/PinScan/README.md
+++ b/examples/PinScan/README.md
@@ -0,0 +1,116 @@
+# PinScan
+
+This example allows to quickly check all digital/analog pins of an IoT device.
+
+By using a simple TUI (text user interface), you can check which I/O pins correspond to i.e. button presses, as well as write to one of the pins to see which LED lights up.
+
+!!! warning
+	Messing with pins in a device can potentially damage some parts of it. Be careful when writing voltages to digital and PWM pins.
+
+Uploading the example and opening up a terminal (e.g. PuTTY) presents this menu:
+```
+LibreTuya v0.8.0, PinScan v1.0
+Board: cb2s
+I/O count: 11
+Digital I/O count: 11
+Analog input count: 1
+-------- UART2 --------
+Commands:
+        d - Check digital pins
+        a - Check analog pins
+        s - Select UART port
+        t - Toggle ANSI control codes
+        r - Reboot (for uploading)
+        q - Go back to menu, at any time
+        ? - Print help text, also for subcommands
+```
+
+The interface expects one-letter commands, without confirmation by `Enter`. The only part which expects an `Enter` keypress is inputting pin numbers and UART port numbers.
+
+Pressing `q` at any time goes back to the main menu, terminating the current process.
+
+!!! note
+	PinScan works best with a terminal supporting ANSI escape codes (PuTTY does), but this behavior can be disabled using `t`.
+
+Switching to another UART port is possible (for example if the default port is on the pins you want to check) using `s` command. Do not change the port after using any I/O commands, as it won't work; reboot it using `r` before.
+
+By setting `USE_WIFI` in `main.h` to 1, a Telnet server is enabled on port 23. This allows to test I/O pins without having physical, wired access to the device (i.e. using OTA). Make sure to specify correct WiFi credentials.
+
+!!! hint
+	If your board isn't supported by LT yet, use one of the generic boards.
+
+	If your board doesn't even have a known pinout, use `d`/`s` commands of PinScan to ease the mapping of all board pins.
+
+## Digital pins
+
+```
+Digital I/O
+-------- UART2 --------
+Commands:
+        r - Realtime readout of all pins
+        o - Read one pin continuously
+        s - Manual Scan - toggle each pin
+        h - Write HIGH to a pin
+        l - Write LOW to a pin
+        p - Output using pull up/down (default)
+        w - Output using write low/high (less safe)
+```
+
+### Realtime readout of all pins
+
+```
+ D0  D1  D2  D3  D4  D5  D6  D7  D8  D9 D10
+ LO  LO  HI  HI  HI  HI  LO  LO  --  --  LO
+```
+
+Screen contents will update when voltage on one of the pins changes. Pins marked with `--` mean the currently used UART port (which can be changed using `s` command; after reboot).
+
+!!! tldr
+	Try pressing a button to see which pin changes.
+
+### Read one pin continuously
+
+Enter the pin number, it will be probed until you press `q`.
+
+### Manual Scan - toggle each pin
+
+```
+ D0  D1  D2  D3  D4  D5  D6  D7  D8  D9 D10
+ HI  LO  LO  LO  LO  LO  LO  LO  --  --  LO
+```
+
+A pin will be toggled every 500ms, starting with D0. Type `n` to move to the next pin.
+
+!!! tldr
+	Go through the pins to see which lights up an LED.
+
+### Write HIGH/LOW to a pin
+
+Self-explanatory.
+
+### Output using pull/write
+
+Outputs can be toggled by using internal pull-up/pull-down resistors, or by simply writing a voltage. Writing is more current-efficient, but is also less safe if something else supplies different voltage to the pin.
+
+This affects scan and write high/low commands.
+
+!!! tldr
+	Use `write` output mode (carefully) if there's an LED which doesn't light up with default pull mode.
+
+## Analog pins
+
+```
+Analog inputs
+-------- UART2 --------
+Commands:
+        r - Realtime readout of all pins
+        o - Read one pin once
+```
+
+### Realtime readout of all pins
+
+Read voltage (in millivolts) on all available analog pins, until `q` is pressed.
+
+### Read one pin once
+
+No need to explain.
--- a/examples/PinScan/platformio.ini
+++ b/examples/PinScan/platformio.ini
@@ -0,0 +1,12 @@
+[env]
+platform = libretuya
+framework = arduino
+
+[env:bk7231n]
+board = generic-bk7231n-qfn32-tuya
+
+[env:bk7231t]
+board = generic-bk7231t-qfn32-tuya
+
+[env:rtl8710b]
+board = generic-rtl8710bn-2mb-788k
--- a/examples/PinScan/src/analog.cpp
+++ b/examples/PinScan/src/analog.cpp
@@ -0,0 +1,70 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-07-31. */
+
+#include "pinscan.h"
+
+static unsigned long last = 0;
+
+static void readAnalog(uint8_t number, pin_size_t pin) {
+	stream->write("A");
+	stream->write('0' + number);
+	stream->print(": ");
+	stream->print(analogReadVoltage(pin));
+	stream->print(" mV\t");
+}
+
+void runAnalog() {
+	if (mode[1] == '\0')
+		return;
+	int pin = 0;
+	switch (mode[1]) {
+		case '?':
+			printHelp('a');
+			break;
+
+		case 'r':
+			if (millis() - last < DELAY_READ)
+				return;
+			last = millis();
+			printAnsi(ANSI_LINE_START);
+#ifdef PIN_A0
+			readAnalog(0, PIN_A0);
+#endif
+#ifdef PIN_A1
+			readAnalog(1, PIN_A1);
+#endif
+#ifdef PIN_A2
+			readAnalog(2, PIN_A2);
+#endif
+			if (!ansi)
+				stream->println();
+			return;
+
+		case 'o':
+			pin = inputPin();
+			// clang-format off
+#ifdef PIN_A0
+			if (pin == 0) {
+				readAnalog(0, PIN_A0);
+			} else
+#endif
+#ifdef PIN_A1
+			if (pin == 1) {
+				readAnalog(0, PIN_A0);
+			} else
+#endif
+#ifdef PIN_A2
+			if (pin == 2) {
+				readAnalog(2, PIN_A2);
+			} else
+#endif
+			// clang-format on
+			{
+				stream->print("Pin unavailable");
+			}
+			stream->println();
+			mode[1]		  = '?';
+			ansiSkipErase = true;
+			return;
+	}
+	mode[1] = '\0';
+}
--- a/examples/PinScan/src/digital.cpp
+++ b/examples/PinScan/src/digital.cpp
@@ -0,0 +1,210 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-07-31. */
+
+#include "pinscan.h"
+
+#define PULL  0
+#define WRITE 1
+
+static bool pins[NUM_DIGITAL_PINS] = {};
+static bool used[NUM_DIGITAL_PINS] = {};
+static bool active				   = false;
+static int pin					   = -1;
+
+static unsigned long last = 0;
+static bool outputMode	  = PULL;
+
+static void printPin(bool state) {
+	if (ansi) {
+		stream->print(state ? (ANSI_RED "HI" ANSI_RESET) : (ANSI_BLUE "LO" ANSI_RESET));
+	} else {
+		stream->print(state ? "HI" : "LO");
+	}
+}
+
+static void printState() {
+	printAnsi(ANSI_TWO_LINES);
+	printAnsi(ANSI_ERASE_LINE);
+	for (pin_size_t i = 0; i < NUM_DIGITAL_PINS; i++) {
+		if (i < 10)
+			stream->write(' ');
+		stream->write('D');
+		stream->print(i);
+		stream->write(' ');
+	}
+	stream->println();
+	printAnsi(ANSI_ERASE_LINE);
+	for (pin_size_t i = 0; i < NUM_DIGITAL_PINS; i++) {
+		stream->write(' ');
+		if (used[i]) {
+			printPin(pins[i]);
+		} else {
+			stream->print("--");
+		}
+		stream->write(' ');
+	}
+	stream->println();
+}
+
+static void irqHandler(void *ptr) {
+	bool *pin	 = (bool *)ptr;
+	pin_size_t i = pin - pins;
+	pins[i]		 = digitalRead(i);
+	// change interrupt level according to current state
+	PinStatus status = pins[i] ? FALLING : RISING;
+	attachInterruptParam(i, irqHandler, status, ptr);
+	printState();
+}
+
+static void digitalAllIrq() {
+#if USE_WIFI
+	LT_I("Disabling logger");
+	lt_log_disable();
+	Serial.end();
+#endif
+	for (pin_size_t i = 0; i < NUM_DIGITAL_PINS; i++) {
+		if (pinSkip[0] == i || pinSkip[1] == i) {
+			used[i] = false;
+			continue;
+		}
+		pinMode(i, INPUT);
+		pins[i] = digitalRead(i);
+		used[i] = true;
+		// choose interrupt level according to current state
+		PinStatus status = pins[i] ? FALLING : RISING;
+		attachInterruptParam(i, irqHandler, status, pins + i);
+	}
+	active = true;
+}
+
+static void digitalOut(pin_size_t pin, PinStatus state) {
+	if (outputMode == PULL) {
+		pinMode(pin, state ? INPUT_PULLUP : INPUT_PULLDOWN);
+	} else {
+		pinMode(pin, OUTPUT);
+		digitalWrite(pin, state);
+	}
+	pins[pin] = state;
+}
+
+static int digitalAllLow() {
+	int first = -1;
+	for (pin_size_t i = 0; i < NUM_DIGITAL_PINS; i++) {
+		if (pinSkip[0] == i || pinSkip[1] == i) {
+			used[i] = false;
+			continue;
+		}
+		if (first == -1)
+			first = i;
+		digitalOut(i, LOW);
+		used[i] = true;
+	}
+	active = true;
+	return first;
+}
+
+void digitalDetach() {
+	outputMode = PULL;
+	if (!active)
+		return;
+	for (pin_size_t i = 0; i < NUM_DIGITAL_PINS; i++) {
+		if (pinSkip[0] == i || pinSkip[1] == i) {
+			continue;
+		}
+		if (used[i])
+			detachInterrupt(i);
+		used[i] = false;
+		pinMode(i, INPUT_PULLDOWN);
+	}
+	active = false;
+	pin	   = -1;
+#if USE_WIFI
+	lt_log_set_port(LT_UART_DEFAULT_LOGGER);
+	Serial.begin(115200);
+	LT_I("Logger enabled");
+#endif
+}
+
+void runDigital() {
+	if (mode[1] == '\0')
+		return;
+	switch (mode[1]) {
+		case '?':
+			printHelp('d');
+			pin = -1;
+			break;
+
+		case 'p':
+			outputMode = PULL;
+			stream->println("Will pull outputs UP/DOWN");
+			mode[1]		  = '?';
+			ansiSkipErase = true;
+			return;
+		case 'w':
+			outputMode = WRITE;
+			stream->println("Will write LOW/HIGH to outputs");
+			mode[1]		  = '?';
+			ansiSkipErase = true;
+			return;
+
+		case 'r':
+			if (!active) {
+				digitalAllIrq();
+				if (ansi)
+					printHelp('d');
+				printAnsi("\n\n"); // reserve two lines for readouts
+				printState();
+			}
+			return;
+
+		case 'o':
+			if (pin == -1) {
+				pin = inputPin();
+				pinMode(pin, INPUT);
+			}
+			printAnsi(ANSI_LINE_START);
+			stream->print("Pin D");
+			stream->print(pin);
+			stream->print(" state: ");
+			printPin(digitalRead(pin));
+			if (!ansi)
+				stream->println();
+			return;
+
+		case 's':
+			if (pin == -1) {
+				// choose the first pin
+				pin = digitalAllLow();
+				if (ansi)
+					printHelp('d');
+				printAnsi("\n\n"); // reserve two lines for readouts
+				printState();
+			}
+			if (mode[2] == 'n') {
+				// go to next pin; leave the current as LOW
+				digitalOut(pin, LOW);
+				do {
+					if (++pin >= NUM_DIGITAL_PINS)
+						pin = 0;
+				} while (used[pin] == false);
+				printState();
+			}
+			mode[2] = '\0';
+			// toggle the pin every 500ms
+			if (millis() - last < 500)
+				return;
+			last = millis();
+			digitalOut(pin, (PinStatus)!pins[pin]);
+			printState();
+			return;
+
+		case 'h':
+		case 'l':
+			pin = inputPin();
+			digitalOut(pin, mode[1] == 'h' ? HIGH : LOW);
+			stream->println("OK");
+			mode[1]		  = '?';
+			ansiSkipErase = true;
+			return;
+	}
+	mode[1] = '\0';
+}
--- a/examples/PinScan/src/help.cpp
+++ b/examples/PinScan/src/help.cpp
@@ -0,0 +1,67 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-07-31. */
+
+#include "pinscan.h"
+
+void printHelp(uint8_t mode) {
+	printAnsiErase();
+	switch (mode) {
+		case '\0':
+			stream->setTimeout(10000);
+			stream->println("LibreTuya v" LT_VERSION_STR ", PinScan v" EXAMPLE_VER);
+			stream->println("Board: " LT_BOARD_STR);
+			stream->print("I/O count: ");
+			stream->println(PINS_COUNT);
+			stream->print("Digital I/O count: ");
+			stream->println(NUM_DIGITAL_PINS);
+			stream->print("Analog input count: ");
+			stream->println(NUM_ANALOG_INPUTS);
+			break;
+		case 'd':
+			stream->println("Digital I/O");
+			break;
+		case 'a':
+			stream->println("Analog inputs");
+			break;
+	}
+	line();
+	stream->println("Commands:");
+	switch (mode) {
+		case '\0':
+			// clang-format off
+			stream->println(
+				TAB "d - Check digital pins" EOL
+				TAB "a - Check analog pins" EOL
+				// TAB "p - Check PWM outputs" EOL
+#if !USE_WIFI
+				TAB "s - Select UART port" EOL
+#endif
+				TAB "t - Toggle ANSI control codes" EOL
+				TAB "r - Reboot (for uploading)" EOL
+				TAB "q - Go back to menu, at any time" EOL
+				TAB "? - Print help text, also for subcommands" EOL
+			);
+			// clang-format on
+			break;
+		case 'd':
+			// clang-format off
+			stream->println(
+				TAB "r - Realtime readout of all pins" EOL
+				TAB "o - Read one pin continuously" EOL
+				TAB "s - Manual Scan - toggle each pin" EOL
+				TAB "h - Write HIGH to a pin" EOL
+				TAB "l - Write LOW to a pin" EOL
+				TAB "p - Output using pull up/down (default)" EOL
+				TAB "w - Output using write low/high (less safe)" EOL
+			);
+			// clang-format on
+			break;
+		case 'a':
+			// clang-format off
+			stream->println(
+				TAB "r - Realtime readout of all pins" EOL
+				TAB "o - Read one pin once" EOL
+			);
+			// clang-format on
+			break;
+	}
+}
--- a/examples/PinScan/src/pinscan.cpp
+++ b/examples/PinScan/src/pinscan.cpp
@@ -0,0 +1,185 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-07-31. */
+
+#include "pinscan.h"
+
+#if USE_WIFI
+#include <WiFi.h>
+#include <WiFiMulti.h>
+
+static WiFiMulti wm;
+static WiFiServer server(23);
+static WiFiClient client;
+#endif
+
+Stream *stream		  = NULL;
+uint8_t mode[]		  = {'?', '\0', '\0', '\0'};
+pin_size_t pinSkip[2] = {255, 255};
+int output			  = -1;
+
+static void parseMode();
+
+void setup() {
+	Serial.begin(115200);
+#if USE_WIFI
+	wm.addAP(WIFI_SSID, WIFI_PASS);
+	while (wm.run() != WL_CONNECTED) {
+		Serial.println("WiFi connection failed, retrying in 5s");
+		delay(5000);
+	}
+	server.begin();
+	server.setNoDelay(true);
+#else
+	stream	   = &Serial;
+#if LT_UART_DEFAULT_SERIAL == 0
+	output	   = 0;
+	pinSkip[0] = PIN_SERIAL0_TX;
+	pinSkip[1] = PIN_SERIAL0_RX;
+#elif LT_UART_DEFAULT_SERIAL == 1
+	output	   = 1;
+	pinSkip[0] = PIN_SERIAL1_TX;
+	pinSkip[1] = PIN_SERIAL1_RX;
+#elif LT_UART_DEFAULT_SERIAL == 2
+	output	   = 2;
+	pinSkip[0] = PIN_SERIAL2_TX;
+	pinSkip[1] = PIN_SERIAL2_RX;
+#endif
+#endif
+}
+
+void loop() {
+#if USE_WIFI
+	while (wm.run() != WL_CONNECTED) {
+		Serial.println("WiFi connection dropped, retrying in 5s");
+		delay(5000);
+	}
+	if (!stream) {
+		client = server.accept();
+		if (client) {
+			stream = &client;
+			printHelp();
+		}
+	} else if (!client.connected()) {
+		stream = NULL;
+		client.stop();
+		client = WiFiClient();
+	}
+#endif
+
+	if (stream && stream->available()) {
+		// put the char in first free mode item
+		bool modeSet = false;
+		for (uint8_t i = 0; i < sizeof(mode) / sizeof(uint8_t); i++) {
+			if (mode[i] == '\0') {
+				mode[i] = stream->read();
+				// make the next mode show help screen
+				if (i < sizeof(mode) - 1) {
+					mode[++i] = '?';
+				}
+				// clear the following items, if any
+				while (i < sizeof(mode) - 1) {
+					mode[++i] = '\0';
+				}
+				modeSet = true;
+				break;
+			}
+		}
+		if (!modeSet) {
+			// no free mode items, reset everything
+			memset(mode, '\0', sizeof(mode));
+			while (stream->available()) {
+				stream->read();
+			}
+		}
+		// LT_I("New mode: %s", mode);
+	}
+
+	// check for any 'q' keypresses
+	for (uint8_t i = 0; i < sizeof(mode) / sizeof(uint8_t); i++) {
+		if (mode[i] == 'q') {
+			if (mode[0] == 'd')
+				digitalDetach();
+			memset(mode, '\0', sizeof(mode));
+			mode[0] = '?';
+			break;
+		}
+	}
+
+	if (stream)
+		parseMode();
+}
+
+static void parseMode() {
+	if (mode[0] == '\0')
+		return;
+	int serial = 0;
+	switch (mode[0]) {
+		case '?':
+			printHelp();
+			break;
+		case 'd':
+			runDigital();
+			return;
+		case 'a':
+			runAnalog();
+			return;
+		case 'r':
+			LT.restart();
+			while (1) {}
+			return;
+
+#if !USE_WIFI
+		case 's':
+			stream->print("Choose output UART: ");
+			serial = stream->parseInt();
+			stream->println();
+			// clang-format off
+#ifdef PIN_SERIAL0_TX
+			if (serial == 0) {
+				stream = &Serial0;
+				pinSkip[0] = PIN_SERIAL0_TX;
+				pinSkip[1] = PIN_SERIAL0_RX;
+			} else
+#endif
+#ifdef PIN_SERIAL1_TX
+			if (serial == 1) {
+				stream = &Serial1;
+				pinSkip[0] = PIN_SERIAL1_TX;
+				pinSkip[1] = PIN_SERIAL1_RX;
+			} else
+#endif
+#ifdef PIN_SERIAL2_TX
+			if (serial == 2) {
+				stream = &Serial2;
+				pinSkip[0] = PIN_SERIAL2_TX;
+				pinSkip[1] = PIN_SERIAL2_RX;
+			} else
+#endif
+			// clang-format on
+			{
+				stream->print("Port unavailable");
+				break;
+			}
+			output = serial;
+			((SerialClass *)stream)->begin(115200);
+			stream->println();
+			mode[0] = '?';
+			return;
+#endif
+
+		case 't':
+			ansi = !ansi;
+			stream->print("ANSI control codes ");
+			if (ansi) {
+				stream->println("enabled");
+				mode[0]		  = '?';
+				ansiSkipErase = true;
+				return;
+			} else {
+				stream->println("disabled");
+			}
+			break;
+		default:
+			break;
+	}
+	mode[0] = '\0';
+}
--- a/examples/PinScan/src/pinscan.h
+++ b/examples/PinScan/src/pinscan.h
@@ -0,0 +1,39 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-07-31. */
+
+#include <Arduino.h>
+
+#define USE_WIFI   0   // set up a WiFi telnet server
+#define DELAY_READ 100 // interval for realtime readouts
+
+#define WIFI_SSID "MySSID"
+#define WIFI_PASS "Secr3tPa$$w0rd"
+
+#define EXAMPLE_VER "1.0"
+
+#define EOL "\r\n"
+#define TAB "\t"
+
+#define ANSI_ERASE		"\x1B[2J"
+#define ANSI_HOME		"\x1B[H"
+#define ANSI_LINE_START "\x1B[0G"
+#define ANSI_TWO_LINES	"\x1B[2F"
+#define ANSI_ERASE_LINE "\x1B[0K"
+#define ANSI_BLUE		"\x1B[0;34m"
+#define ANSI_RED		"\x1B[0;31m"
+#define ANSI_RESET		"\x1B[0m"
+
+extern Stream *stream;
+extern uint8_t mode[];
+extern pin_size_t pinSkip[2];
+extern int output;
+extern bool ansi;
+extern bool ansiSkipErase;
+
+extern void printHelp(uint8_t mode = '\0');
+extern void printAnsi(const char *str);
+extern void printAnsiErase();
+extern void line();
+extern int inputPin();
+extern void runAnalog();
+extern void runDigital();
+extern void digitalDetach();
--- a/examples/PinScan/src/ui.cpp
+++ b/examples/PinScan/src/ui.cpp
@@ -0,0 +1,37 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-07-31. */
+
+#include "pinscan.h"
+
+bool ansi		   = true;
+bool ansiSkipErase = false;
+
+void printAnsi(const char *str) {
+	if (ansi)
+		stream->print(str);
+}
+
+void printAnsiErase() {
+	if (!ansiSkipErase)
+		printAnsi(ANSI_ERASE ANSI_HOME);
+	ansiSkipErase = false;
+}
+
+void line() {
+	stream->print("--------");
+	if (output == -1) {
+		stream->print("TELNET");
+	} else {
+		stream->print(" UART");
+		stream->print(output);
+		stream->write(' ');
+	}
+	stream->print("--------");
+	stream->println();
+}
+
+int inputPin() {
+	stream->print("Enter pin number: ");
+	int pin = stream->parseInt();
+	stream->println();
+	return pin;
+}
--- a/platform.json
+++ b/platform.json
@@ -6,7 +6,7 @@
    "type": "git",
    "url": "https://github.com/kuba2k2/platformio-libretuya"
  },
-  "version": "0.8.0",
+  "version": "0.9.0",
  "frameworks": {
    "arduino": {
      "title": "Generic Arduino framework",
@@ -120,6 +120,11 @@
        "~1.100301.0"
      ]
    },
+    "tool-ltchiptool": {
+      "type": "uploader",
+      "version": "https://github.com/libretuya/ltchiptool#v1.4.0",
+      "note": "This is used only for C/C++ code from ltchiptool."
+    },
    "tool-openocd": {
      "type": "uploader",
      "optional": true,
--- a/platform.py
+++ b/platform.py
@@ -1,26 +1,48 @@
 # Copyright (c) Kuba Szczodrzyński 2022-04-20.

+import importlib
 import json
 import sys
+from os import system
 from os.path import dirname, join
 from typing import Dict

-from platformio import util
 from platformio.debug.config.base import DebugConfigBase
 from platformio.debug.exception import DebugInvalidOptionsError
-from platformio.managers.platform import PlatformBase
 from platformio.package.exception import MissingPackageManifestError
 from platformio.package.manager.base import BasePackageManager
 from platformio.package.meta import PackageItem, PackageSpec
+from platformio.platform.base import PlatformBase
 from platformio.platform.board import PlatformBoardConfig
+from semantic_version import Version

-# Make tools available
-sys.path.insert(0, dirname(__file__))

-from tools.util.platform import get_board_manifest
+# Install & import tools
+def check_ltchiptool():
+    global ltchiptool
+    import ltchiptool
+
+    importlib.reload(ltchiptool)
+    if Version(ltchiptool.get_version()) < Version("1.4.0"):
+        raise ImportError("Version too old")
+
+
+try:
+    check_ltchiptool()
+except (ImportError, AttributeError):
+    print("Installing/updating ltchiptool")
+    system(" ".join([sys.executable, "-m", "pip install -U ltchiptool"]))
+    try:
+        check_ltchiptool()
+    except (ImportError, AttributeError) as e:
+        print(
+            f"!!! Installing ltchiptool failed, or version outdated. Cannot continue: {e}"
+        )
+        raise e

 # Remove current dir so it doesn't conflict with PIO
-sys.path.remove(dirname(__file__))
+if dirname(__file__) in sys.path:
+    sys.path.remove(dirname(__file__))

 libretuya_packages = None
 manifest_default = {"version": "0.0.0", "description": "", "keywords": []}
@@ -189,7 +211,7 @@ class LibretuyaPlatform(PlatformBase):

    def update_board(self, board: PlatformBoardConfig):
        if "_base" in board:
-            board._manifest = get_board_manifest(board._manifest)
+            board._manifest = ltchiptool.Board.get_data(board._manifest)

        # add "arduino" framework
        has_arduino = any("arduino" in fw for fw in board.manifest["frameworks"])
--- a/platform/beken-7231n/config/sys_config.h
+++ b/platform/beken-7231n/config/sys_config.h
@@ -129,4 +129,6 @@
 #define THD_UMP3_PRIORITY			  4
 #define THD_WPAS_PRIORITY			  5
 #define THDD_KEY_SCAN_PRIORITY		  7
+#define UART1_USE_FIFO_REC			  0
+#define UART2_USE_FIFO_REC			  0
 #define WIFI_DEFAULT_BLE_REQUEST	  1
--- a/platform/beken-7231t/config/sys_config.h
+++ b/platform/beken-7231t/config/sys_config.h
@@ -113,4 +113,6 @@
 #define THD_UMP3_PRIORITY				4
 #define THD_WPAS_PRIORITY				5
 #define THDD_KEY_SCAN_PRIORITY			7
+#define UART1_USE_FIFO_REC				0
+#define UART2_USE_FIFO_REC				0
 #define WIFI_DEFAULT_BLE_REQUEST		1
--- a/platform/common/fixups/lib_inc/udp.h
+++ b/platform/common/fixups/lib_inc/udp.h
@@ -7,6 +7,4 @@
 // this is included only by wifi_simple_config.c
 // which uses lwip_ntohl without parentheses
 // so the #define from lwip/def.h doesn't work
-#ifndef lwip_ntohl
 #define lwip_ntohl lwip_htonl
-#endif
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Kuba Szczodrzyński	aae2f65b9e	[release] v0.9.0 Some checks failed Lint check / Lint with clang-format (push) Has been cancelled Details Lint check / Lint with black (push) Has been cancelled Details PlatformIO Publish / publish (push) Has been cancelled Details	2022-08-06 13:42:37 +02:00
Kuba Szczodrzyński	d02197474e	[docs] Update ESPHome docs, add cloudcutter guide	2022-08-06 13:37:47 +02:00
Kuba Szczodrzyński	41b37e9c24	[core] Update ltchiptool to v1.4.0	2022-08-06 13:06:44 +02:00
Kuba Szczodrzyński	b03400fac2	[beken-72xx] Implement OTA API, add Update debugging	2022-08-06 11:36:53 +02:00
Kuba Szczodrzyński	3e808f7b6b	[beken-72xx] Write OTA package to UF2 image	2022-08-05 20:29:48 +02:00
Kuba Szczodrzyński	1e3a8971fb	[core] Migrate tools to ltchiptool	2022-08-05 20:29:45 +02:00
Kuba Szczodrzyński	d8c0105b97	[examples] Fix PinScan compilation on realtek-ambz	2022-08-03 12:48:50 +02:00
Kuba Szczodrzyński	b3689cbac8	[beken-72xx] Specify keys for OTA packaging	2022-08-01 19:56:34 +02:00
Kuba Szczodrzyński	1b5d6472f7	[examples] Fix PinScan telnet functionality	2022-08-01 11:28:56 +02:00
Kuba Szczodrzyński	e9511c507a	[core] Allow disabling LT logger programmatically	2022-08-01 11:28:16 +02:00
Kuba Szczodrzyński	365f64ded5	[beken-72xx] Make Serial.end() disable hardware UART	2022-08-01 11:27:57 +02:00
Kuba Szczodrzyński	3601fa63d8	[examples] Add PinScan example	2022-08-01 10:52:58 +02:00
Kuba Szczodrzyński	5d00ddf516	[beken-72xx] Fix detaching interrupt handler	2022-07-31 23:25:12 +02:00
Kuba Szczodrzyński	0051453cad	[beken-72xx] Implement interrupts	2022-07-31 21:35:02 +02:00
Kuba Szczodrzyński	7920ea2dda	[beken-72xx] Fix SerialClass character reading	2022-07-31 14:52:09 +02:00
Kuba Szczodrzyński	9416e45a75	[docs] Restructure documentation, clarify some parts	2022-07-31 13:05:24 +02:00
Kuba Szczodrzyński	98a65c81af	[boards] Add usage info to board README	2022-07-31 12:47:24 +02:00
Kuba Szczodrzyński	8e1f06e79b	[boards] Add LSC LMA35 board, update boardgen	2022-07-30 19:48:58 +02:00
Kuba Szczodrzyński	58a09f453d	[realtek-ambz] Fix errors related to lwIP	2022-07-30 17:18:46 +02:00
Kuba Szczodrzyński	7dc69982b6	[beken-72xx] Fix putchar_p UART index	2022-07-30 15:42:30 +02:00
Kuba Szczodrzyński	46e4041ed8	[beken-72xx] Mark mDNS as broken	2022-07-28 22:18:04 +02:00
Kuba Szczodrzyński	0e129130b1	[core] Print errors about starting main task	2022-07-28 20:29:53 +02:00
Kuba Szczodrzyński	33c9868f90	[core] Remove duplicated WMath functions	2022-07-28 13:46:42 +02:00