[release] v0.12.6

* Fix toolchain for BK7231 on ARM cpus

* Fix format

* PR comments

* PR Comments, part 2

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+ko_fi: kuba2k2
+custom:
+  - "https://paypal.me/kuba2k2"

.github/workflows/docs.yml

@@ -13,6 +13,20 @@ jobs:
       - name: Checkout main
         uses: actions/checkout@v2
 
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install ltchiptool
+        run: pip install ltchiptool
+
+      - name: Generate static JSON files
+        run: |
+          mkdir -p site/
+          python docs/build_json.py
+          cp *.json site/
+
       - name: Set custom domain
         run: |
           mkdir -p site/

.gitignore

@@ -256,6 +256,5 @@ cython_debug/
 # mkdocs
 xml/
 ltapi/
-ltambz/
 hashChanges.yaml
 .piopm

README.md

@@ -22,7 +22,7 @@ The main goal of this project is to provide a usable build environment for IoT d
 the project focuses on developing working Arduino-compatible cores for supported families. The cores are inspired by Espressif's official core for ESP32,
 which should make it easier to port/run existing ESP apps on Tuya IoT (and 3-rd party) modules.
 
-LibreTuya also provides a common interface for all family implementations. The interface is based on ESP32 official libraries.
+**There's an [ESPHome port](https://docs.libretuya.ml/docs/projects/esphome/) based on LibreTuya, which supports BK7231 and RTL8710B chips.**
 
 **Note:** this project is work-in-progress.
 
@@ -31,11 +31,7 @@ LibreTuya also provides a common interface for all family implementations. The i
 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!
-4. See the [docs](https://kuba2k2.github.io/libretuya/) for any questions/problems.
-
-## Board List
-
-See [Boards & CPU list](https://kuba2k2.github.io/libretuya/docs/status/supported/).
+4. See the [docs](https://docs.libretuya.ml/) for any questions/problems.
 
 ## Arduino Core support status
 

SUMMARY.md

@@ -1,37 +1,30 @@
 * [Home](README.md)
-* 😊 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)
+* [😊 Getting started](docs/getting-started/README.md)
+	* [ESPHome](docs/projects/esphome.md)
+* [📲 Flashing/dumping](docs/flashing/)
+* [💻 Supported boards & chips](docs/status/supported.md)
+* 📖 Reference
+	* Chip families
+		* [Beken BK72xx](docs/platform/beken-72xx/README.md)
+		* [Realtek Ameba - info](docs/platform/realtek-amb/README.md)
+		* [Realtek AmebaZ](docs/platform/realtek-ambz/README.md)
+			* [Debugging](docs/platform/realtek-ambz/debugging.md)
+			* [Exception decoder](docs/platform/realtek-ambz/exception-decoder.md)
+			* C library
+				* [Built-in functions](docs/platform/realtek-ambz/stdlib.md)
+				* [Memory management](docs/platform/realtek-ambz/memory-management.md)
+	* [🔧 LT configuration](docs/reference/config.md)
+	* [✔️ Implementation status](docs/status/arduino.md)
+	* [🔌 Boards documentation](boards/)
+	* [🔋 Examples](examples/)
+	* [📖 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)
 		* [Wiring custom methods](ltapi/_libre_tuya_custom_8h.md)
 		* [Logger](ltapi/lt__logger_8h.md)
 		* [Chip & family IDs](ltapi/_chip_type_8h_source.md)
 		* [POSIX utilities](ltapi/lt__posix__api_8h.md)
-	* Common API
+	* 📖 Common API
 		* [FS](ltapi/classfs_1_1_f_s.md)
 		* [Preferences](ltapi/class_i_preferences.md)
 		* [SoftwareSerial](ltapi/class_software_serial.md)
@@ -39,7 +32,7 @@
 			* [TCP Client](ltapi/class_i_wi_fi_client.md)
 			* [SSL Client](ltapi/class_i_wi_fi_client_secure.md)
 			* [TCP Server](ltapi/class_i_wi_fi_server.md)
-	* [LibreTuya libraries](docs/libs-built-in.md)
+	* [📖 LibreTuya libraries](docs/libs-built-in.md)
 		* [base64](ltapi/classbase64.md)
 		* [Flash](ltapi/class_flash_class.md)
 		* [HTTPClient](ltapi/class_h_t_t_p_client.md)
@@ -61,6 +54,5 @@
 	* [✈️ 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)
+	* [📓 TODO](TODO.md)
+* [🔗 Resources](docs/resources/)

TODO.md

@@ -2,6 +2,16 @@
 
 ## General
 
+### Environment stability
+
+Do not publish *any* SDK functions, macros, defines and includes. Define only what's needed in LT's public headers (like `Arduino.h`). Everything else is taken from `sdk_extern.h` or `WVariant.h` (TODO decide whether to keep WV public / make both private / get rid of WV and use sdk_extern only). Private headers are included by LT's .cpp units (maybe a dedicated private header that would include sdk_extern + Arduino.h).
+
+Developers wanting to use SDK functions need to include them.
+
+Explicit is better than implicit.
+
+- consider moving to C++17 (GNU)? or any newer than C++11
+
 ### New families
 
 - BL602
@@ -10,6 +20,7 @@
 - RTL8720D
 - W600 and/or W800
 - LN8825
+- BK7231Q
 - host-native family
 
 ### Tools
@@ -30,7 +41,6 @@
 
 ## BK7231
 
-- implement OTA
 - fix WiFi on BK7231N, test other functionality
 - fix SSL (mbedTLS)
 - I2C (Wire)
@@ -39,5 +49,5 @@
 
 ## RTL8710B
 
-- move to GNU++11 (and verify that it works) - take all stdio functions from stdio.h
+- take all stdio functions from stdio.h
 - rewrite most of Wiring (it was copied from `ambd_arduino`, and is ugly)

arduino/beken-72xx/cores/arduino/Arduino.h

@@ -6,8 +6,10 @@
 #include "WCharacterFixup.h"
 #endif
 
+#define delay delayMilliseconds // change delay()'s signature - it's defined as static inline in WVariant.h
 #include <api/ArduinoAPI.h>
 #include <core/LibreTuyaAPI.h>
+#undef delay
 
 // Include family-specific code
 #include "WVariant.h"

arduino/beken-72xx/cores/arduino/LibreTuyaAPI.cpp

@@ -17,11 +17,14 @@ extern "C" {
 
 #include <flash_pub.h>
 #include <param_config.h>
+#include <start_type_pub.h>
 #include <sys_ctrl.h>
 #include <sys_rtos.h>
+#include <wdt_pub.h>
 #include <wlan_ui_pub.h>
 
 extern uint8_t system_mac[];
+extern uint32_t wdt_ctrl(uint32_t cmd, void *param);
 
 } // extern "C"
 
@@ -29,6 +32,36 @@ void LibreTuya::restart() {
 	bk_reboot();
 }
 
+void LibreTuya::restartDownloadMode() {
+	bk_reboot();
+}
+
+ResetReason LibreTuya::getResetReason() {
+	switch (bk_misc_get_start_type()) {
+		case RESET_SOURCE_POWERON:
+			return RESET_REASON_POWER;
+
+		case RESET_SOURCE_REBOOT:
+			return RESET_REASON_SOFTWARE;
+
+		case RESET_SOURCE_WATCHDOG:
+			return RESET_REASON_WATCHDOG;
+
+		case RESET_SOURCE_CRASH_XAT0:
+		case RESET_SOURCE_CRASH_UNDEFINED:
+		case RESET_SOURCE_CRASH_PREFETCH_ABORT:
+		case RESET_SOURCE_CRASH_DATA_ABORT:
+		case RESET_SOURCE_CRASH_UNUSED:
+		case RESET_SOURCE_CRASH_PER_XAT0:
+			return RESET_REASON_CRASH;
+
+		case RESET_SOURCE_DEEPPS_GPIO:
+		case RESET_SOURCE_DEEPPS_RTC:
+			return RESET_REASON_SLEEP;
+	}
+	return RESET_REASON_UNKNOWN;
+}
+
 /* CPU-related */
 
 ChipType LibreTuya::getChipType() {
@@ -154,6 +187,22 @@ bool LibreTuya::otaSwitch(bool force) {
 	return otaHasImage2(); // false if second image is not valid
 }
 
+/* Watchdog */
+
+bool LibreTuya::wdtEnable(uint32_t timeout) {
+	wdt_ctrl(WCMD_SET_PERIOD, &timeout);
+	wdt_ctrl(WCMD_POWER_UP, NULL);
+}
+
+void LibreTuya::wdtDisable() {
+	wdt_ctrl(WCMD_POWER_DOWN, NULL);
+}
+
+void LibreTuya::wdtFeed() {
+	wdt_ctrl(WCMD_RELOAD_PERIOD, NULL);
+}
+
 /* Global instance */
 
 LibreTuya LT;
+LibreTuya ESP = LT;

arduino/beken-72xx/cores/arduino/SerialClass.cpp

@@ -24,10 +24,29 @@ SerialClass::SerialClass(uint8_t port) {
 	this->buf  = NULL;
 }
 
+#if LT_AUTO_DOWNLOAD_REBOOT
+static uint8_t adrState		  = 0;
+static const uint8_t adrCmd[] = {0x01, 0xE0, 0xFC, 0x01, 0x00};
+
+static void adrParse(uint8_t c) {
+	// parse and respond to link check command (CMD_LinkCheck=0)
+	adrState = (adrState + 1) * (c == adrCmd[adrState]);
+	if (adrState == 5) {
+		LT_I("Auto download mode: rebooting");
+		LT.restart();
+	}
+}
+#endif
+
 static void callback(int port, void *param) {
 	RingBuffer *buf = (RingBuffer *)param;
 	int ch;
 	while ((ch = uart_read_byte(port)) != -1) {
+#if LT_AUTO_DOWNLOAD_REBOOT && defined(PIN_SERIAL1_RX)
+		// parse UART protocol commands on UART1
+		if (port == UART1_PORT)
+			adrParse(ch);
+#endif
 		buf->store_char(ch);
 	}
 }

arduino/beken-72xx/cores/arduino/WVariant.h

@@ -9,9 +9,10 @@ extern "C" {
 #include "sdk_extern.h"
 #include "sdk_mem.h"
 
-// allow BDK use its own delay() and let Arduino code use delayMilliseconds()
-void delayMilliseconds(unsigned long);
-#define delay delayMilliseconds
+// define an inline delay() which overrides BDK's delay()
+static inline __attribute__((always_inline)) void delay(unsigned long ms) {
+	delayMilliseconds(ms);
+}
 
 // from fixups/arch_main.c
 extern unsigned char __bk_rf_is_init;

arduino/beken-72xx/cores/arduino/main.cpp

@@ -16,6 +16,10 @@ beken_thread_t mainThread;
 void initArduino() {
 	// set default UART output port
 	uart_print_port = LT_UART_DEFAULT_PORT - 1;
+#if LT_AUTO_DOWNLOAD_REBOOT && defined(PIN_SERIAL1_RX) && defined(PIN_SERIAL1_TX)
+	// initialize auto-download-reboot parser
+	Serial1.begin(115200);
+#endif
 }
 
 bool startMainTask() {

arduino/beken-72xx/cores/arduino/wiring.c

@@ -1,20 +1,57 @@
 /* Copyright (c) Kuba Szczodrzyński 2022-06-19. */
 
 #include <Arduino.h>
+#include <arm_arch.h>
+#include <bk_timer.h>
+#include <bk_timer_pub.h>
 #include <rtos_pub.h>
 #include <sys_rtos.h>
 
+#define TICKS_PER_US	   (CFG_XTAL_FREQUENCE / 1000 / 1000)
+#define US_PER_OVERFLOW	   (portTICK_PERIOD_MS * 1000)
+#define TICKS_PER_OVERFLOW (TICKS_PER_US * US_PER_OVERFLOW)
+
 void delayMilliseconds(unsigned long ms) {
 	rtos_delay_milliseconds(ms);
 }
 
+static uint32_t getTicksCount() {
+	// copied from bk_timer_ctrl(), for speeds
+	uint32_t timeout = 0;
+	REG_WRITE(TIMER0_2_READ_CTL, (BKTIMER0 << 2) | 1);
+	while (REG_READ(TIMER0_2_READ_CTL) & 1) {
+		timeout++;
+		if (timeout > (120 * 1000))
+			return 0;
+	}
+	return REG_READ(TIMER0_2_READ_VALUE);
+}
+
 void delayMicroseconds(unsigned int us) {
-	// TODO implement this properly
-	us /= 10;
+#if LT_MICROS_HIGH_RES
+	if (us == 0)
+		return;
+	us--;
+	uint32_t startTick = getTicksCount();
+	/* startTick2 accounts for the case where the timer counter overflows */
+	uint32_t startTick2 = startTick - TICKS_PER_OVERFLOW;
+	uint32_t delayTicks = TICKS_PER_US * us;
+	while (delayTicks > TICKS_PER_OVERFLOW) {
+		// The delay is longer than what the timer can count.
+		// Let it overflow until only a fraction of TICKS_PER_OVERFLOW remain.
+		while (getTicksCount() > startTick) {}
+		while (getTicksCount() < startTick) {}
+		delayTicks -= TICKS_PER_OVERFLOW;
+	}
+	while ((getTicksCount() - startTick < delayTicks) || // normal case
+		   (getTicksCount() - startTick2 < delayTicks)	 // counter overflow case
+	) {}
+#else
 	volatile uint32_t i, j;
 	for (i = 0; i < us; i++) {
-		for (j = 0; j < 100; j++) {}
+		for (j = 0; j < 6; j++) {}
 	}
+#endif
 }
 
 unsigned long millis() {
@@ -22,8 +59,47 @@ unsigned long millis() {
 }
 
 unsigned long micros() {
-	// TODO implement this properly
+#if (CFG_SOC_NAME == SOC_BK7231)
+#error "Not implemented"
+#endif
+
+#if LT_MICROS_HIGH_RES
+	static uint32_t lastMillis		= 0;
+	static uint32_t correctedMillis = 0;
+	static uint32_t lastTicks		= 0;
+	uint32_t nowMillis				= millis();
+	uint32_t nowTicks				= getTicksCount();
+	bool tickOverflow				= nowTicks < lastTicks;
+	bool millisUpdated				= nowMillis != lastMillis;
+	if (millisUpdated) {
+		/* reset artificially corrected millis */
+		correctedMillis = nowMillis;
+	} else if (tickOverflow) {
+		/*
+		This can happen if micros is called from within a interruptLock block (interrupts disabled).
+		In this case, if the tick counter rolls over, millis() won't be updated, and micros will
+		lag by US_PER_OVERFLOW milliseconds (one rollover).
+		The workaround only works as long as micros() calls happen within 2ms of eachother.
+		WARNING: if interrupts are disabled for more than 2ms, micros() and millis() will temporarily get out of sync.
+		*/
+		correctedMillis += portTICK_PERIOD_MS;
+	}
+	lastMillis = nowMillis;
+	lastTicks  = nowTicks;
+	return correctedMillis * 1000 + nowTicks / (CFG_XTAL_FREQUENCE / 1000 / 1000);
+#else
+#if 0
+	uint32_t timeout = 0;
+	REG_WRITE(TIMER3_5_READ_CTL, (BKTIMER3 << 2) | 1);
+	while (REG_READ(TIMER3_5_READ_CTL) & 1) {
+		timeout++;
+		if (timeout > (120 * 1000))
+			return 0;
+	}
+	return millis() * 1000 + REG_READ(TIMER3_5_READ_VALUE) / 32;
+#endif
 	return millis() * 1000;
+#endif
 }
 
 void yield() {

arduino/beken-72xx/cores/arduino/wiring_analog.c

@@ -106,7 +106,7 @@ void analogWrite(pin_size_t pinNumber, int value) {
 	pwm.duty_cycle3 = 0;
 #endif
 
-	if (value) {
+	if (dutyCycle) {
 		if (!pinEnabled(pin, PIN_PWM)) {
 			// enable PWM and set its value
 			pwm.cfg.bits.en		= PWM_ENABLE;
@@ -131,7 +131,6 @@ void analogWrite(pin_size_t pinNumber, int value) {
 			// disable PWM
 			pwm.cfg.bits.en = PWM_DISABLE;
 			__wrap_bk_printf_disable();
-			sddev_control(PWM_DEV_NAME, CMD_PWM_SET_DUTY_CYCLE, &pwm);
 			sddev_control(PWM_DEV_NAME, CMD_PWM_DEINIT_PARAM, &pwm);
 			__wrap_bk_printf_enable();
 			pin->enabled &= ~PIN_PWM;

arduino/beken-72xx/cores/arduino/wiring_irq.c

@@ -4,6 +4,7 @@
 
 static void *irqHandlerList[PINS_COUNT] = {NULL};
 static void *irqHandlerArgs[PINS_COUNT] = {NULL};
+static bool irqChangeList[PINS_COUNT];
 
 static void irqHandler(unsigned char gpio) {
 	int pin = -1;
@@ -17,6 +18,15 @@ static void irqHandler(unsigned char gpio) {
 		return;
 	if (!irqHandlerList[pin])
 		return;
+	if (irqChangeList[pin]) {
+		if (pinTable[pin].mode == INPUT_PULLDOWN) {
+			pinTable[pin].mode = INPUT_PULLUP;
+			gpio_int_enable(pinTable[pin].gpio, GPIO_INT_LEVEL_FALLING, irqHandler);
+		} else if (pinTable[pin].mode == INPUT_PULLUP) {
+			pinTable[pin].mode = INPUT_PULLDOWN;
+			gpio_int_enable(pinTable[pin].gpio, GPIO_INT_LEVEL_RISING, irqHandler);
+		}
+	}
 	if (irqHandlerArgs[pin] == NULL) {
 		((voidFuncPtr)irqHandlerList[pin])();
 	} else {
@@ -36,28 +46,40 @@ void attachInterruptParam(pin_size_t interruptNumber, voidFuncPtrParam callback,
 		return;
 	uint32_t event	= 0;
 	PinMode modeNew = 0;
+	bool change		= 0;
+
 	switch (mode) {
 		case LOW:
 			event	= GPIO_INT_LEVEL_LOW;
 			modeNew = INPUT_PULLUP;
+			change	= false;
 			break;
 		case HIGH:
 			event	= GPIO_INT_LEVEL_HIGH;
 			modeNew = INPUT_PULLDOWN;
+			change	= false;
 			break;
 		case FALLING:
 			event	= GPIO_INT_LEVEL_FALLING;
 			modeNew = INPUT_PULLUP;
+			change	= false;
 			break;
 		case RISING:
 			event	= GPIO_INT_LEVEL_RISING;
 			modeNew = INPUT_PULLDOWN;
+			change	= false;
+			break;
+		case CHANGE:
+			event	= GPIO_INT_LEVEL_FALLING;
+			modeNew = INPUT_PULLUP;
+			change	= true;
 			break;
 		default:
 			return;
 	}
 	irqHandlerList[interruptNumber] = callback;
 	irqHandlerArgs[interruptNumber] = param;
+	irqChangeList[interruptNumber]	= change;
 	gpio_int_enable(pin->gpio, event, irqHandler);
 	pin->enabled |= PIN_IRQ | PIN_GPIO;
 	pin->mode = modeNew;
@@ -71,6 +93,7 @@ void detachInterrupt(pin_size_t interruptNumber) {
 		return;
 	irqHandlerList[interruptNumber] = NULL;
 	irqHandlerArgs[interruptNumber] = NULL;
+	irqChangeList[interruptNumber]	= false;
 	gpio_int_disable(pin->gpio);
 	pin->enabled &= ~PIN_IRQ;
 }

arduino/beken-72xx/libraries/WiFi/WiFiAP.cpp

@@ -10,6 +10,9 @@ bool WiFiClass::softAP(const char *ssid, const char *passphrase, int channel, bo
 
 	LT_HEAP_I();
 
+	// Beken SDK bug: bk_wlan_ap_init_adv() doesn't null-terminate the passphrase
+	memset(g_ap_param_ptr->key, '\0', 65);
+
 	strcpy(AP_CFG->wifi_ssid, ssid);
 	if (passphrase) {
 		strcpy(AP_CFG->wifi_key, passphrase);
@@ -27,6 +30,13 @@ bool WiFiClass::softAP(const char *ssid, const char *passphrase, int channel, bo
 
 	LT_IM(WIFI, "Creating SoftAP %s", ssid);
 
+	if (!AP_CFG->local_ip_addr[0]) {
+		LT_DM(WIFI, "Setting default IP config");
+		softAPConfig((uint32_t)0, (uint32_t)0, (uint32_t)0);
+	}
+
+	LT_DM(WIFI, "Static IP: %s / %s / %s", AP_CFG->local_ip_addr, AP_CFG->net_mask, AP_CFG->gateway_ip_addr);
+
 	__wrap_bk_printf_disable();
 	OSStatus ret = bk_wlan_start_ap_adv(AP_CFG);
 	__wrap_bk_printf_enable();
@@ -65,6 +75,9 @@ bool WiFiClass::softAPConfig(IPAddress localIP, IPAddress gateway, IPAddress sub
 }
 
 bool WiFiClass::softAPdisconnect(bool wifiOff) {
+	if (!(getMode() & WIFI_MODE_AP))
+		// do not call SDK methods before even initializing WiFi first
+		return true;
 	return bk_wlan_stop(BK_SOFT_AP) == kNoErr;
 }
 

arduino/beken-72xx/libraries/WiFi/WiFiData.h

@@ -21,4 +21,5 @@ typedef struct {
 	void *statusLink;
 	rw_evt_type lastStaEvent;
 	rw_evt_type lastApEvent;
+	bool apEnabled;
 } WiFiData;

arduino/beken-72xx/libraries/WiFi/WiFiGeneric.cpp

@@ -44,16 +44,13 @@ bool WiFiClass::modePriv(WiFiMode mode, WiFiModeAction sta, WiFiModeAction ap) {
 
 	if (ap == WLMODE_ENABLE) {
 		LT_DM(WIFI, "Enabling AP");
-		bk_wlan_ap_init(NULL);
-#if CFG_WPA_CTRL_IFACE
-		wlan_ap_enable();
-		wlan_ap_reload();
-		uap_ip_down();
-#endif
+		// fake it - on BK7231, enabling the AP without starting it breaks all connection attempts
+		data.apEnabled = true;
 		wifiEventSendArduino(ARDUINO_EVENT_WIFI_AP_START);
 	} else if (ap == WLMODE_DISABLE) {
 		LT_DM(WIFI, "Disabling AP");
 		bk_wlan_stop(BK_SOFT_AP);
+		data.apEnabled = false;
 		wifiEventSendArduino(ARDUINO_EVENT_WIFI_AP_STOP);
 	}
 
@@ -71,7 +68,7 @@ bool WiFiClass::modePriv(WiFiMode mode, WiFiModeAction sta, WiFiModeAction ap) {
 
 WiFiMode WiFiClass::getMode() {
 	uint8_t sta = !!bk_wlan_has_role(VIF_STA) * WIFI_MODE_STA;
-	uint8_t ap	= !!bk_wlan_has_role(VIF_AP) * WIFI_MODE_AP;
+	uint8_t ap	= data.apEnabled * WIFI_MODE_AP; // report the faked value
 	return (WiFiMode)(sta | ap);
 }
 

arduino/beken-72xx/libraries/WiFi/WiFiScan.cpp

@@ -41,15 +41,25 @@ static void scanHandler(void *ctx, uint8_t param) {
 	wifiEventSendArduino(ARDUINO_EVENT_WIFI_SCAN_DONE);
 
 end:
-	scan->running = false;
-	xSemaphoreGive(cls->data.scanSem);
+	scan->timeout = 0;
+	if (scan->running) {
+		// running == false means it was discarded (timeout)
+		scan->running = false;
+		xSemaphoreGive(cls->data.scanSem);
+	}
 	LT_HEAP_I();
 	return;
 }
 
 int16_t WiFiClass::scanNetworks(bool async, bool showHidden, bool passive, uint32_t maxMsPerChannel, uint8_t channel) {
-	if (scan && scan->running)
-		return WIFI_SCAN_RUNNING;
+	if (scan && scan->running) {
+		if (scan->timeout && millis() > scan->timeout) {
+			LT_WM(WIFI, "Scan timeout, discarding");
+			scan->running = false;
+		} else {
+			return WIFI_SCAN_RUNNING;
+		}
+	}
 	enableSTA(true);
 	scanDelete();
 	scanInit();
@@ -63,6 +73,7 @@ int16_t WiFiClass::scanNetworks(bool async, bool showHidden, bool passive, uint3
 	LT_HEAP_I();
 
 	scan->running = true;
+	scan->timeout = millis() + maxMsPerChannel * 20 + 1000;
 
 	int16_t ret = WIFI_SCAN_RUNNING;
 	if (!async) {

arduino/beken-72xx/libraries/WiFi/WiFiUdp.h

@@ -0,0 +1,8 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-09-10. */
+
+#pragma once
+
+#include <api/WiFi/WiFi.h>
+#include <lwip/LwIPUdp.h>
+
+typedef LwIPUDP WiFiUDP;

arduino/libretuya/api/SoftwareSerial.cpp

@@ -2,6 +2,8 @@
 
 #include "SoftwareSerial.h"
 
+#ifdef LT_ARD_HAS_SOFTSERIAL
+
 SoftwareSerial::SoftwareSerial(pin_size_t receivePin, pin_size_t transmitPin, bool inverted) {
 	data.rx.buf = NULL;
 	data.tx.buf = NULL;
@@ -39,3 +41,5 @@ size_t SoftwareSerial::write(uint8_t c) {
 	}
 	return 1;
 }
+
+#endif

arduino/libretuya/api/SoftwareSerial.h

@@ -2,6 +2,8 @@
 
 #pragma once
 
+#ifdef LT_ARD_HAS_SOFTSERIAL
+
 #include <Arduino.h>
 #include <api/HardwareSerial.h>
 #include <api/RingBuffer.h>
@@ -71,4 +73,4 @@ class SoftwareSerial : public HardwareSerial {
 	using Print::write;
 };
 
-#define HAS_SERIAL_CLASS 1
+#endif

arduino/libretuya/api/WiFi/WiFiType.h

@@ -137,9 +137,10 @@ typedef struct {
 } WiFiScanAP;
 
 typedef struct {
-	bool running   = false;
-	uint8_t count  = 0;
-	WiFiScanAP *ap = NULL;
+	bool running		  = false;
+	unsigned long timeout = 0;
+	uint8_t count		  = 0;
+	WiFiScanAP *ap		  = NULL;
 } WiFiScanData;
 
 typedef enum {

arduino/libretuya/api/WiFiUdp.h

@@ -5,7 +5,28 @@
 
 class IWiFiUDP : public UDP {
   public:
-	uint8_t beginMulticast(IPAddress ip, uint16_t port);
-	int beginMulticastPacket();
-	int beginPacket();
+	IWiFiUDP() {}
+
+	~IWiFiUDP() {}
+
+	virtual uint8_t begin(IPAddress ip, uint16_t port)			= 0;
+	virtual uint8_t begin(uint16_t port)						= 0;
+	virtual uint8_t beginMulticast(IPAddress ip, uint16_t port) = 0;
+	virtual void stop()											= 0;
+	virtual int beginMulticastPacket()							= 0;
+	virtual int beginPacket()									= 0;
+	virtual int beginPacket(IPAddress ip, uint16_t port)		= 0;
+	virtual int beginPacket(const char *host, uint16_t port)	= 0;
+	virtual int endPacket()										= 0;
+	virtual size_t write(uint8_t)								= 0;
+	virtual size_t write(const uint8_t *buffer, size_t size)	= 0;
+	virtual int parsePacket()									= 0;
+	virtual int available()										= 0;
+	virtual int read()											= 0;
+	virtual int read(unsigned char *buffer, size_t len)			= 0;
+	virtual int read(char *buffer, size_t len)					= 0;
+	virtual int peek()											= 0;
+	virtual void flush()										= 0;
+	virtual IPAddress remoteIP()								= 0;
+	virtual uint16_t remotePort()								= 0;
 };

arduino/libretuya/core/ChipType.h

@@ -11,8 +11,9 @@ enum ChipFamily {
 	F_RTL8710B = 0x22E0D6FC, // Realtek AmebaZ (realtek-ambz)
 	F_RTL8720C = 0xE08F7564, // Realtek AmebaZ2
 	F_RTL8720D = 0x3379CFE2, // Realtek AmebaD
-	F_BK7231T  = 0x675A40B0, // Beken 7231T
+	F_BK7231U  = 0x675A40B0, // Beken 7231U/7231T
 	F_BK7231N  = 0x7B3EF230, // Beken 7231N
+	F_BK7251   = 0x6A82CC42, // Beken 7251/7252
 	F_BL602	   = 0xDE1270B7, // Boufallo 602
 	F_XR809	   = 0x51E903A8, // Xradiotech 809
 	F_NATIVE   = 0xDEADBEEF, // Host-native
@@ -29,6 +30,8 @@ enum ChipType {
 	RTL8711BN = CHIP_TYPE(F_RTL8710B, 0xFD), // CHIPID_8711BN / QFN48
 	RTL8711BU = CHIP_TYPE(F_RTL8710B, 0xFC), // CHIPID_8711BG / QFN68
 	// Beken 72XX
-	BK7231T = CHIP_TYPE(F_BK7231T, 0x1A), // *SCTRL_CHIP_ID = 0x7231a
+	BK7231T = CHIP_TYPE(F_BK7231U, 0x1A), // *SCTRL_CHIP_ID = 0x7231a
 	BK7231N = CHIP_TYPE(F_BK7231N, 0x1C), // *SCTRL_CHIP_ID = 0x7231c
+	BL2028N = CHIP_TYPE(F_BK7231N, 0x1C), // *SCTRL_CHIP_ID = 0x7231c
+	BK7252	= CHIP_TYPE(F_BK7251, 0x00),  // TODO
 };

arduino/libretuya/core/LibreTuyaClass.cpp

@@ -50,6 +50,33 @@ const char *LibreTuya::getDeviceName() {
 	return deviceName;
 }
 
+/**
+ * @brief Get a textual representation of a reset reason.
+ *
+ * @param reason value to convert to text, uses getResetReason() by default
+ */
+const char *LibreTuya::getResetReasonName(ResetReason reason) {
+	if (reason >= RESET_REASON_MAX)
+		reason = getResetReason();
+	switch (reason) {
+		case RESET_REASON_POWER:
+			return "Power-On";
+		case RESET_REASON_BROWNOUT:
+			return "Brownout";
+		case RESET_REASON_HARDWARE:
+			return "HW Reboot";
+		case RESET_REASON_SOFTWARE:
+			return "SW Reboot";
+		case RESET_REASON_WATCHDOG:
+			return "WDT Reset";
+		case RESET_REASON_CRASH:
+			return "Crash";
+		case RESET_REASON_SLEEP:
+			return "Sleep Wakeup";
+	}
+	return "Unknown";
+}
+
 /**
  * @brief Get CPU frequency in MHz.
  */

arduino/libretuya/core/LibreTuyaClass.h

@@ -7,6 +7,18 @@
 #include "LibreTuyaAPI.h"
 #include <core/ChipType.h>
 
+typedef enum {
+	RESET_REASON_UNKNOWN  = 0,
+	RESET_REASON_POWER	  = 1,
+	RESET_REASON_BROWNOUT = 2,
+	RESET_REASON_HARDWARE = 3,
+	RESET_REASON_SOFTWARE = 4,
+	RESET_REASON_WATCHDOG = 5,
+	RESET_REASON_CRASH	  = 6,
+	RESET_REASON_SLEEP	  = 7,
+	RESET_REASON_MAX	  = 8,
+} ResetReason;
+
 /**
  * @brief Flash chip ID structure.
  */
@@ -31,17 +43,34 @@ class LibreTuya {
 	ChipFamily getChipFamily();
 	const char *getChipFamilyName();
 	const char *getDeviceName();
+	const char *getResetReasonName(ResetReason reason = RESET_REASON_MAX);
 	uint32_t getCpuFreqMHz();
 	uint32_t getFlashChipSize();
 	uint8_t otaGetTarget();
 	bool otaRollback();
 	bool otaCanRollback();
 
+  public: /* Compatibility methods */
+	/**
+	 * @brief Alias of getMaxAllocHeap().
+	 */
+	inline uint32_t getMaxFreeBlockSize() {
+		return getMaxAllocHeap();
+	}
+
   public: /* Family-defined methods */
 	/**
 	 * @brief Reboot the CPU.
 	 */
 	void restart();
+	/**
+	 * @brief Reboot the CPU and stay in download mode (if possible).
+	 */
+	void restartDownloadMode();
+	/**
+	 * @brief Get the reason of last chip reset.
+	 */
+	ResetReason getResetReason();
 	/**
 	 * @brief Reconfigure GPIO pins used for debugging
 	 * (SWD/JTAG), so that they can be used as normal I/O.
@@ -139,6 +168,23 @@ class LibreTuya {
 	 * @return false if writing failed; true otherwise
 	 */
 	bool otaSwitch(bool force = false);
+
+  public: /* Watchdog */
+	/**
+	 * @brief Enable the hardware watchdog.
+	 *
+	 * @param timeout watchdog timeout, milliseconds (defaults to 10s)
+	 * @return whether the chip has a hardware watchdog
+	 */
+	bool wdtEnable(uint32_t timeout = 10000);
+	/**
+	 * @brief Disable the hardware watchdog.
+	 */
+	void wdtDisable();
+	/**
+	 * @brief Feed/reset the hardware watchdog timer.
+	 */
+	void wdtFeed();
 };
 
 extern LibreTuya LT;

arduino/libretuya/core/LibreTuyaConfig.h

@@ -82,6 +82,14 @@
 #define LT_USE_TIME 0
 #endif
 
+#ifndef LT_MICROS_HIGH_RES // NOTE: this is also defined in fixups/clock_rtos.c
+#define LT_MICROS_HIGH_RES 1
+#endif
+
+#ifndef LT_AUTO_DOWNLOAD_REBOOT
+#define LT_AUTO_DOWNLOAD_REBOOT 1
+#endif
+
 // Per-module logging output - applies to all loglevels
 #ifndef LT_DEBUG_ALL
 #define LT_DEBUG_ALL 0

arduino/libretuya/core/lt_logger.h

@@ -13,7 +13,8 @@
 			lt_log(level, caller, line, #module ": " __VA_ARGS__);                                                     \
 		}                                                                                                              \
 	} while (0)
-void lt_log(const uint8_t level, const char *caller, const unsigned short line, const char *format, ...);
+void lt_log(const uint8_t level, const char *caller, const unsigned short line, const char *format, ...)
+	__attribute__((format(printf, 4, 5)));
 #else
 #define LT_LOG(level, caller, line, ...) lt_log(level, __VA_ARGS__)
 #define LT_LOGM(level, module, caller, line, ...)                                                                      \
@@ -22,7 +23,7 @@ void lt_log(const uint8_t level, const char *caller, const unsigned short line,
 			lt_log(level, #module ": " __VA_ARGS__);                                                                   \
 		}                                                                                                              \
 	} while (0)
-void lt_log(const uint8_t level, const char *format, ...);
+void lt_log(const uint8_t level, const char *format, ...) __attribute__((format(printf, 2, 3)));
 #endif
 
 /**

arduino/libretuya/core/main.cpp

@@ -52,10 +52,12 @@ void runPeriodicTasks() {
 int main(void) {
 	// print a startup banner
 	LT_BANNER();
-	// initialize Arduino framework
-	initArduino();
 	// initialize C library
 	__libc_init_array();
+	// inform about the reset reason
+	LT_I("Reset reason: %u", LT.getResetReason());
+	// initialize Arduino framework
+	initArduino();
 	// optionally initialize per-variant code
 	initVariant();
 	// initialize FAL

arduino/libretuya/libraries/NetUtils/lwip/LwIPUdp.cpp

@@ -0,0 +1,286 @@
+/*
+  Udp.cpp - UDP class for Raspberry Pi
+  Copyright (c) 2016 Hristo Gochkov  All right reserved.
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if LT_ARD_HAS_WIFI && LT_HAS_LWIP
+
+#include "LwIPUdp.h"
+#include <errno.h>
+
+extern "C" {
+
+#include <lwip/netdb.h>
+#include <lwip/sockets.h>
+
+} // extern "C"
+
+#undef write
+#undef read
+
+LwIPUDP::LwIPUDP() : udp_server(-1), server_port(0), remote_port(0), tx_buffer(0), tx_buffer_len(0), rx_buffer(0) {}
+
+LwIPUDP::~LwIPUDP() {
+	stop();
+}
+
+uint8_t LwIPUDP::begin(IPAddress address, uint16_t port) {
+	stop();
+
+	server_port = port;
+
+	tx_buffer = new char[1460];
+	if (!tx_buffer) {
+		log_e("could not create tx buffer: %d", errno);
+		return 0;
+	}
+
+	if ((udp_server = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
+		log_e("could not create socket: %d", errno);
+		return 0;
+	}
+
+	int yes = 1;
+	if (setsockopt(udp_server, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
+		log_e("could not set socket option: %d", errno);
+		stop();
+		return 0;
+	}
+
+	struct sockaddr_in addr;
+	memset((char *)&addr, 0, sizeof(addr));
+	addr.sin_family		 = AF_INET;
+	addr.sin_port		 = htons(server_port);
+	addr.sin_addr.s_addr = (in_addr_t)address;
+	if (bind(udp_server, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+		log_e("could not bind socket: %d", errno);
+		stop();
+		return 0;
+	}
+	fcntl(udp_server, F_SETFL, O_NONBLOCK);
+	return 1;
+}
+
+uint8_t LwIPUDP::begin(uint16_t p) {
+	return begin(IPAddress(INADDR_ANY), p);
+}
+
+uint8_t LwIPUDP::beginMulticast(IPAddress a, uint16_t p) {
+	if (begin(IPAddress(INADDR_ANY), p)) {
+		if ((uint32_t)a != 0) {
+			struct ip_mreq mreq;
+			mreq.imr_multiaddr.s_addr = (in_addr_t)a;
+			mreq.imr_interface.s_addr = INADDR_ANY;
+			if (setsockopt(udp_server, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0) {
+				log_e("could not join igmp: %d", errno);
+				stop();
+				return 0;
+			}
+			multicast_ip = a;
+		}
+		return 1;
+	}
+	return 0;
+}
+
+void LwIPUDP::stop() {
+	if (tx_buffer) {
+		delete[] tx_buffer;
+		tx_buffer = NULL;
+	}
+	tx_buffer_len = 0;
+	if (rx_buffer) {
+		cbuf *b	  = rx_buffer;
+		rx_buffer = NULL;
+		delete b;
+	}
+	if (udp_server == -1)
+		return;
+	if ((uint32_t)multicast_ip != 0) {
+		struct ip_mreq mreq;
+		mreq.imr_multiaddr.s_addr = (in_addr_t)multicast_ip;
+		mreq.imr_interface.s_addr = (in_addr_t)0;
+		setsockopt(udp_server, IPPROTO_IP, IP_DROP_MEMBERSHIP, &mreq, sizeof(mreq));
+		multicast_ip = IPAddress(INADDR_ANY);
+	}
+	close(udp_server);
+	udp_server = -1;
+}
+
+int LwIPUDP::beginMulticastPacket() {
+	if (!server_port || multicast_ip == IPAddress(INADDR_ANY))
+		return 0;
+	remote_ip	= multicast_ip;
+	remote_port = server_port;
+	return beginPacket();
+}
+
+int LwIPUDP::beginPacket() {
+	if (!remote_port)
+		return 0;
+
+	// allocate tx_buffer if is necessary
+	if (!tx_buffer) {
+		tx_buffer = new char[1460];
+		if (!tx_buffer) {
+			log_e("could not create tx buffer: %d", errno);
+			return 0;
+		}
+	}
+
+	tx_buffer_len = 0;
+
+	// check whereas socket is already open
+	if (udp_server != -1)
+		return 1;
+
+	if ((udp_server = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
+		log_e("could not create socket: %d", errno);
+		return 0;
+	}
+
+	fcntl(udp_server, F_SETFL, O_NONBLOCK);
+
+	return 1;
+}
+
+int LwIPUDP::beginPacket(IPAddress ip, uint16_t port) {
+	remote_ip	= ip;
+	remote_port = port;
+	return beginPacket();
+}
+
+int LwIPUDP::beginPacket(const char *host, uint16_t port) {
+	struct hostent *server;
+	server = gethostbyname(host);
+	if (server == NULL) {
+		log_e("could not get host from dns: %d", errno);
+		return 0;
+	}
+	return beginPacket(IPAddress((const uint8_t *)(server->h_addr_list[0])), port);
+}
+
+int LwIPUDP::endPacket() {
+	struct sockaddr_in recipient;
+	recipient.sin_addr.s_addr = (uint32_t)remote_ip;
+	recipient.sin_family	  = AF_INET;
+	recipient.sin_port		  = htons(remote_port);
+	int sent = sendto(udp_server, tx_buffer, tx_buffer_len, 0, (struct sockaddr *)&recipient, sizeof(recipient));
+	if (sent < 0) {
+		log_e("could not send data: %d", errno);
+		return 0;
+	}
+	return 1;
+}
+
+size_t LwIPUDP::write(uint8_t data) {
+	if (tx_buffer_len == 1460) {
+		endPacket();
+		tx_buffer_len = 0;
+	}
+	tx_buffer[tx_buffer_len++] = data;
+	return 1;
+}
+
+size_t LwIPUDP::write(const uint8_t *buffer, size_t size) {
+	size_t i;
+	for (i = 0; i < size; i++)
+		write(buffer[i]);
+	return i;
+}
+
+int LwIPUDP::parsePacket() {
+	if (rx_buffer)
+		return 0;
+	struct sockaddr_in si_other;
+	int slen  = sizeof(si_other), len;
+	char *buf = new char[1460];
+	if (!buf) {
+		return 0;
+	}
+	if ((len = recvfrom(udp_server, buf, 1460, MSG_DONTWAIT, (struct sockaddr *)&si_other, (socklen_t *)&slen)) == -1) {
+		delete[] buf;
+		if (errno == EWOULDBLOCK) {
+			return 0;
+		}
+		log_e("could not receive data: %d", errno);
+		return 0;
+	}
+	remote_ip	= IPAddress(si_other.sin_addr.s_addr);
+	remote_port = ntohs(si_other.sin_port);
+	if (len > 0) {
+		rx_buffer = new cbuf(len);
+		rx_buffer->write(buf, len);
+	}
+	delete[] buf;
+	return len;
+}
+
+int LwIPUDP::available() {
+	if (!rx_buffer)
+		return 0;
+	return rx_buffer->available();
+}
+
+int LwIPUDP::read() {
+	if (!rx_buffer)
+		return -1;
+	int out = rx_buffer->read();
+	if (!rx_buffer->available()) {
+		cbuf *b	  = rx_buffer;
+		rx_buffer = 0;
+		delete b;
+	}
+	return out;
+}
+
+int LwIPUDP::read(unsigned char *buffer, size_t len) {
+	return read((char *)buffer, len);
+}
+
+int LwIPUDP::read(char *buffer, size_t len) {
+	if (!rx_buffer)
+		return 0;
+	int out = rx_buffer->read(buffer, len);
+	if (!rx_buffer->available()) {
+		cbuf *b	  = rx_buffer;
+		rx_buffer = 0;
+		delete b;
+	}
+	return out;
+}
+
+int LwIPUDP::peek() {
+	if (!rx_buffer)
+		return -1;
+	return rx_buffer->peek();
+}
+
+void LwIPUDP::flush() {
+	if (!rx_buffer)
+		return;
+	cbuf *b	  = rx_buffer;
+	rx_buffer = 0;
+	delete b;
+}
+
+IPAddress LwIPUDP::remoteIP() {
+	return remote_ip;
+}
+
+uint16_t LwIPUDP::remotePort() {
+	return remote_port;
+}
+
+#endif

arduino/libretuya/libraries/NetUtils/lwip/LwIPUdp.h

@@ -0,0 +1,43 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-09-10. */
+
+#pragma once
+
+#include <api/WiFi/WiFi.h>
+#include <api/WiFiUdp.h>
+#include <cbuf.h>
+
+class LwIPUDP : public IWiFiUDP {
+  private:
+	int udp_server;
+	IPAddress multicast_ip;
+	IPAddress remote_ip;
+	uint16_t server_port;
+	uint16_t remote_port;
+	char *tx_buffer;
+	size_t tx_buffer_len;
+	cbuf *rx_buffer;
+
+  public:
+	LwIPUDP();
+	~LwIPUDP();
+	uint8_t begin(IPAddress ip, uint16_t port);
+	uint8_t begin(uint16_t port);
+	uint8_t beginMulticast(IPAddress ip, uint16_t port);
+	void stop();
+	int beginMulticastPacket();
+	int beginPacket();
+	int beginPacket(IPAddress ip, uint16_t port);
+	int beginPacket(const char *host, uint16_t port);
+	int endPacket();
+	size_t write(uint8_t);
+	size_t write(const uint8_t *buffer, size_t size);
+	int parsePacket();
+	int available();
+	int read();
+	int read(unsigned char *buffer, size_t len);
+	int read(char *buffer, size_t len);
+	int peek();
+	void flush();
+	IPAddress remoteIP();
+	uint16_t remotePort();
+};

arduino/libretuya/libraries/mDNS/LwIPmDNS.cpp

@@ -38,6 +38,7 @@ static void mdnsStatusCallback(struct netif *netif, uint8_t result) {
 }
 
 bool mDNS::begin(const char *hostname) {
+	setInstanceName(hostname);
 	LT_DM(MDNS, "Starting (%s)", hostname);
 #if LWIP_VERSION_MAJOR >= 2 && LWIP_VERSION_MINOR >= 1
 	mdns_resp_register_name_result_cb(mdnsStatusCallback);

arduino/realtek-ambz/cores/arduino/LibreTuyaAPI.cpp

@@ -2,14 +2,31 @@
 
 #include <LibreTuyaAPI.h>
 
+#include <Flash.h>
+
 extern "C" {
 #include <flash_api.h>
 #include <rtl8710b.h>
 #include <sys_api.h>
+#include <wdt_api.h>
 }
 
 void LibreTuya::restart() {
+	// The Watchdog Way
+	wdtEnable(1L);
+	while (1) {}
+}
+
+void LibreTuya::restartDownloadMode() {
+	// mww 0x40000138 0x8
+	HAL_WRITE32(SYSTEM_CTRL_BASE, REG_SYS_NORESET_FF, 0x08);
+	// reboot it the ugly way
 	sys_reset();
+	while (1) {}
+}
+
+ResetReason LibreTuya::getResetReason() {
+	return RESET_REASON_UNKNOWN;
 }
 
 void LibreTuya::gpioRecover() {
@@ -24,7 +41,7 @@ void LibreTuya::gpioRecover() {
 ChipType LibreTuya::getChipType() {
 	uint8_t chipId;
 	EFUSE_OneByteReadROM(9902, 0xF8, &chipId, L25EOUTVOLTAGE);
-	return CHIP_TYPE_ENUM(F_RTL8710B, chipId);
+	return CHIP_TYPE_ENUM(FAMILY, chipId);
 }
 
 const char *LibreTuya::getChipModel() {
@@ -140,25 +157,24 @@ bool LibreTuya::otaSwitch(bool force) {
 	if (!force && otaGetRunning() != otaGetStoredIndex())
 		// OTA has already been switched
 		return true;
-	// this function does:
-	// - read OTA1 firmware magic from 0xB000
-	// - read OTA2 address from 0x9000
-	// - read OTA2 firmware magic from that address
 	// - read current OTA switch value from 0x9004
-	// - reset OTA switch to 0xFFFFFFFF if it's 0x0
-	// - check first non-zero bit of OTA switch
+	// - reset OTA switch to 0xFFFFFFFE if it's 0x0
+	// - else check first non-zero bit of OTA switch
 	// - write OTA switch with first non-zero bit cleared
-	// sys_clear_ota_signature();
-	// ok, this function is broken (crashes with HardFault)
 
 	if (!otaHasImage1() || !otaHasImage2())
 		return false;
 
 	uint32_t value = HAL_READ32(SPI_FLASH_BASE, FLASH_SYSTEM_OFFSET + 4);
 	if (value == 0) {
-		// TODO does this work at all?
-		FLASH_EreaseDwordsXIP(FLASH_SYSTEM_OFFSET + 4, 1);
+		uint8_t *system = (uint8_t *)malloc(64);
+		Flash.readBlock(FLASH_SYSTEM_OFFSET, system, 64);
+		// reset OTA switch
+		((uint32_t *)system)[1] = -2;
+		Flash.eraseSector(FLASH_SYSTEM_OFFSET);
+		return Flash.writeBlock(FLASH_SYSTEM_OFFSET, system, 64);
 	}
+
 	uint8_t i;
 	// find first non-zero bit
 	for (i = 0; i < 32; i++) {
@@ -172,6 +188,22 @@ bool LibreTuya::otaSwitch(bool force) {
 	return true;
 }
 
+/* Watchdog */
+
+bool LibreTuya::wdtEnable(uint32_t timeout) {
+	watchdog_init(timeout);
+	watchdog_start();
+}
+
+void LibreTuya::wdtDisable() {
+	watchdog_stop();
+}
+
+void LibreTuya::wdtFeed() {
+	watchdog_refresh();
+}
+
 /* Global instance */
 
 LibreTuya LT;
+LibreTuya ESP = LT;

arduino/realtek-ambz/libraries/SoftwareSerial/SoftwareSerial.cpp

@@ -83,6 +83,8 @@ void SoftwareSerial::begin(unsigned long baudrate, uint16_t config) {
 }
 
 void SoftwareSerial::end() {
+	if (!(bool)this)
+		return;
 	gtimer_stop(OBJ);
 	gtimer_deinit(OBJ);
 	free(OBJ);

arduino/realtek-ambz/libraries/WiFi/WiFiSTA.cpp

@@ -201,9 +201,8 @@ const String WiFiClass::psk() {
 }
 
 uint8_t *WiFiClass::BSSID() {
-	uint8_t bssid[ETH_ALEN];
-	wext_get_bssid(NETNAME_STA, bssid);
-	return bssid;
+	wext_get_bssid(NETNAME_STA, wifi.bssid.octet);
+	return wifi.bssid.octet;
 }
 
 int8_t WiFiClass::RSSI() {

arduino/realtek-ambz/libraries/WiFi/WiFiUdp.h

@@ -0,0 +1,8 @@
+/* Copyright (c) Kuba Szczodrzyński 2022-09-10. */
+
+#pragma once
+
+#include <api/WiFi/WiFi.h>
+#include <lwip/LwIPUdp.h>
+
+typedef LwIPUDP WiFiUDP;

boards/SUMMARY.md

@@ -2,12 +2,18 @@
 
 - [Generic - BK7231N (Tuya QFN32)](../boards/generic-bk7231n-qfn32-tuya/README.md)
 - [Generic - BK7231T (Tuya QFN32)](../boards/generic-bk7231t-qfn32-tuya/README.md)
+- [Generic - BK7252](../boards/generic-bk7252/README.md)
 - [Generic - RTL8710BN (2M/468k)](../boards/generic-rtl8710bn-2mb-468k/README.md)
 - [Generic - RTL8710BN (2M/788k)](../boards/generic-rtl8710bn-2mb-788k/README.md)
+- [Generic - RTL8710BX (4M/980k)](../boards/generic-rtl8710bx-4mb-980k/README.md)
 - [Generic - RTL8720CF (2M/992k)](../boards/generic-rtl8720cf-2mb-992k/README.md)
 - [BW12](../boards/bw12/README.md)
 - [BW15](../boards/bw15/README.md)
+- [CB2L](../boards/cb2l/README.md)
 - [CB2S](../boards/cb2s/README.md)
+- [CB3L](../boards/cb3l/README.md)
+- [CB3S](../boards/cb3s/README.md)
+- [CB3SE](../boards/cb3se/README.md)
 - [WB2L](../boards/wb2l/README.md)
 - [WB2S](../boards/wb2s/README.md)
 - [WB3L](../boards/wb3l/README.md)
@@ -22,4 +28,5 @@
 - [WR3L](../boards/wr3l/README.md)
 - [WR3LE](../boards/wr3le/README.md)
 - [LSC LMA35](../boards/lsc-lma35/README.md)
+- [LSC LMA35 T](../boards/lsc-lma35-t/README.md)
 - [Generic - Host-native](../boards/generic-native/README.md)

boards/_base/beken-7231n-tuya.json

@@ -1,24 +1,6 @@
 {
 	"build": {
 		"bkcrypt_coeffs": "510fb093a3cbeadc5993a17ec7adeb03",
-		"bkboot_version": "1.0.1-bk7231n",
-		"bkrbl_size_app": "0x107800"
-	},
-	"flash": {
-		"bootloader": "0x000000+0x11000",
-		"app": "0x011000+0x119000",
-		"download": "0x12A000+0xA6000",
-		"tlv": "0x1D0000+0x1000",
-		"net": "0x1D1000+0x2000",
-		"kvs": "0x1D3000+0x8000",
-		"userdata": "0x1DB000+0x25000"
-	},
-	"upload": {
-		"maximum_size": 1083136
-	},
-	"doc": {
-		"extra": [
-			"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."
-		]
+		"bkboot_version": "1.0.1-bk7231n"
 	}
 }

boards/_base/beken-7231n.json

@@ -2,11 +2,27 @@
 	"build": {
 		"family": "BK7231N",
 		"ldscript_sdk": "bk7231n_bsp.ld",
-		"ldscript_arduino": "bk7231n_bsp.ld"
+		"ldscript_arduino": "bk7231n_bsp.ld",
+		"bkboot_version": "1.0.1-bk7231n",
+		"bkrbl_size_app": "0x108700"
+	},
+	"flash": {
+		"bootloader": "0x000000+0x11000",
+		"app": "0x011000+0x119000",
+		"download": "0x12A000+0xA6000",
+		"calibration": "0x1D0000+0x1000",
+		"net": "0x1D1000+0x1000",
+		"tlv": "0x1D2000+0x1000",
+		"kvs": "0x1D3000+0x8000",
+		"userdata": "0x1DB000+0x25000"
 	},
 	"upload": {
+		"maximum_size": 1083136,
 		"speed": 460800
 	},
+	"connectivity": [
+		"ble"
+	],
 	"doc": {
 		"params": {
 			"extra": {

boards/_base/beken-7231t-tuya.json

@@ -1,24 +1,6 @@
 {
 	"build": {
 		"bkcrypt_coeffs": "510fb093a3cbeadc5993a17ec7adeb03",
-		"bkboot_version": "1.0.5-bk7231s",
-		"bkrbl_size_app": "0x107800"
-	},
-	"flash": {
-		"bootloader": "0x000000+0x11000",
-		"app": "0x011000+0x121000",
-		"download": "0x132000+0xA6000",
-		"kvs": "0x1D8000+0x8000",
-		"tlv": "0x1E0000+0x1000",
-		"net": "0x1E1000+0x2000",
-		"userdata": "0x1E3000+0x1D000"
-	},
-	"upload": {
-		"maximum_size": 1083136
-	},
-	"doc": {
-		"extra": [
-			"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."
-		]
+		"bkboot_version": "1.0.5-bk7231s"
 	}
 }

boards/_base/beken-7231t.json

@@ -1,17 +0,0 @@
-{
-	"build": {
-		"family": "BK7231T",
-		"ldscript_sdk": "bk7231_bsp.ld",
-		"ldscript_arduino": "bk7231_bsp.ld"
-	},
-	"upload": {
-		"speed": 921600
-	},
-	"doc": {
-		"params": {
-			"extra": {
-				"Bluetooth": "BLE v4.2"
-			}
-		}
-	}
-}

boards/_base/beken-7231u.json

@@ -0,0 +1,33 @@
+{
+	"build": {
+		"family": "BK7231U",
+		"ldscript_sdk": "bk7231_bsp.ld",
+		"ldscript_arduino": "bk7231_bsp.ld",
+		"bkboot_version": "1.0.8-bk7231u",
+		"bkrbl_size_app": "0x108700"
+	},
+	"flash": {
+		"bootloader": "0x000000+0x11000",
+		"app": "0x011000+0x121000",
+		"download": "0x132000+0xA6000",
+		"kvs": "0x1D8000+0x8000",
+		"calibration": "0x1E0000+0x1000",
+		"tlv": "0x1E1000+0x1000",
+		"net": "0x1E2000+0x1000",
+		"userdata": "0x1E3000+0x1D000"
+	},
+	"upload": {
+		"maximum_size": 1083136,
+		"speed": 921600
+	},
+	"connectivity": [
+		"ble"
+	],
+	"doc": {
+		"params": {
+			"extra": {
+				"Bluetooth": "BLE v4.2"
+			}
+		}
+	}
+}

boards/_base/beken-7252.json

@@ -0,0 +1,40 @@
+{
+	"build": {
+		"family": "BK7251",
+		"f_cpu": "180000000L",
+		"ldscript_sdk": "bk7231_bsp.ld",
+		"ldscript_arduino": "bk7231_bsp.ld",
+		"bkboot_version": "0.1.3-bk7252",
+		"bkrbl_size_app": "0x1A0000"
+	},
+	"flash": {
+		"bootloader": "0x000000+0x11000",
+		"app": "0x011000+0x1BA000",
+		"filesystem": "0x1CB000+0x119000",
+		"kvs": "0x2E4000+0x8000",
+		"download": "0x2EC000+0x112000",
+		"calibration": "0x3FE000+0x1000",
+		"tlv": "0x3FF000+0x1000"
+	},
+	"debug": {
+		"gdb_init": [
+			"mem 0x200000 0x400000 ro"
+		]
+	},
+	"upload": {
+		"maximum_ram_size": 524288,
+		"flash_size": 4194304,
+		"maximum_size": 1703936,
+		"speed": 921600
+	},
+	"connectivity": [
+		"ble"
+	],
+	"doc": {
+		"params": {
+			"extra": {
+				"Bluetooth": "BLE v5.0"
+			}
+		}
+	}
+}

boards/_base/beken-72xx.json

@@ -3,15 +3,12 @@
 		"f_cpu": "120000000L",
 		"prefix": "arm-none-eabi-",
 		"bkota": {
-			"encryption": "aes256",
-			"compression": "gzip",
-			"key": "0123456789ABCDEF0123456789ABCDEF",
-			"iv": "0123456789ABCDEF"
+			"encryption": "none",
+			"compression": "gzip"
 		}
 	},
 	"connectivity": [
-		"wifi",
-		"ble"
+		"wifi"
 	],
 	"debug": {
 		"protocol": "openocd",
@@ -47,8 +44,10 @@
 		},
 		"links": {
 			"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"
-		}
+			"Flashing guide": "../../docs/platform/beken-72xx/flashing.md"
+		},
+		"extra": [
+			"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."
+		]
 	}
 }

boards/_base/ic/bk7231-qfn40.json

@@ -0,0 +1,186 @@
+{
+	"pcb": {
+		"ic": {
+			"10": {
+				"C_NAME": "GPIO25",
+				"GPIO": "P25",
+				"IRQ": null,
+				"USB": "DP"
+			},
+			"11": {
+				"C_NAME": "GPIO33",
+				"GPIO": "P33",
+				"IRQ": null,
+				"DVP": "PD1"
+			},
+			"12": {
+				"C_NAME": "GPIO32",
+				"GPIO": "P32",
+				"IRQ": null,
+				"DVP": "PD0"
+			},
+			"13": {
+				"C_NAME": "GPIO29",
+				"GPIO": "P29",
+				"IRQ": null,
+				"DVP": "PCLK"
+			},
+			"14": {
+				"C_NAME": "GPIO27",
+				"GPIO": "P27",
+				"IRQ": null,
+				"DVP": "MCLK"
+			},
+			"15": {
+				"C_NAME": "GPIO30",
+				"GPIO": "P30",
+				"IRQ": null,
+				"DVP": "HSYNC"
+			},
+			"16": {
+				"C_NAME": "GPIO31",
+				"GPIO": "P31",
+				"IRQ": null,
+				"DVP": "VSYNC"
+			},
+			"17": {
+				"C_NAME": "GPIO34",
+				"GPIO": "P34",
+				"IRQ": null,
+				"DVP": "PD2"
+			},
+			"18": {
+				"C_NAME": "GPIO35",
+				"GPIO": "P35",
+				"IRQ": null,
+				"DVP": "PD3"
+			},
+			"19": {
+				"C_NAME": "GPIO36",
+				"GPIO": "P36",
+				"IRQ": null,
+				"DVP": "PD4"
+			},
+			"20": {
+				"C_NAME": "GPIO37",
+				"GPIO": "P37",
+				"IRQ": null,
+				"DVP": "PD5"
+			},
+			"21": {
+				"C_NAME": "GPIO38",
+				"GPIO": "P38",
+				"IRQ": null,
+				"DVP": "PD6"
+			},
+			"22": {
+				"C_NAME": "GPIO39",
+				"GPIO": "P39",
+				"IRQ": null,
+				"DVP": "PD7"
+			},
+			"23": {
+				"C_NAME": "GPIO14",
+				"GPIO": "P14",
+				"IRQ": null,
+				"SD": "CLK",
+				"SPI": "SCK"
+			},
+			"24": {
+				"C_NAME": "GPIO16",
+				"GPIO": "P16",
+				"IRQ": null,
+				"SD": "D0",
+				"SPI": "MOSI"
+			},
+			"25": {
+				"C_NAME": "GPIO15",
+				"GPIO": "P15",
+				"IRQ": null,
+				"SD": "CMD",
+				"SPI": "CS"
+			},
+			"26": {
+				"C_NAME": "GPIO17",
+				"GPIO": "P17",
+				"IRQ": null,
+				"SD": "D1",
+				"SPI": "MISO"
+			},
+			"27": {
+				"C_NAME": "GPIO23",
+				"GPIO": "P23",
+				"IRQ": null,
+				"ADC": 3,
+				"JTAG": "TDO",
+				"FLASH": "FSO"
+			},
+			"28": {
+				"C_NAME": "GPIO22",
+				"GPIO": "P22",
+				"IRQ": null,
+				"JTAG": "TDI",
+				"FLASH": "FSI"
+			},
+			"29": {
+				"C_NAME": "GPIO21",
+				"GPIO": "P21",
+				"IRQ": null,
+				"I2C": "1_SDA",
+				"JTAG": "TMS",
+				"I2S": "MCLK",
+				"FLASH": "^FCS"
+			},
+			"30": {
+				"C_NAME": "GPIO20",
+				"GPIO": "P20",
+				"IRQ": null,
+				"I2C": "1_SCL",
+				"JTAG": "TCK",
+				"FLASH": "FSCK"
+			},
+			"31": {
+				"IO": "I",
+				"CTRL": "CEN"
+			},
+			"32": {
+				"C_NAME": "GPIO8",
+				"GPIO": "P8",
+				"IRQ": null,
+				"PWM": 2
+			},
+			"33": {
+				"C_NAME": "GPIO9",
+				"GPIO": "P9",
+				"IRQ": null,
+				"PWM": 3
+			},
+			"34": {
+				"C_NAME": "GPIO10",
+				"GPIO": "P10",
+				"IRQ": null,
+				"UART": "1_RX"
+			},
+			"35": {
+				"C_NAME": "GPIO11",
+				"GPIO": "P11",
+				"IRQ": null,
+				"UART": "1_TX"
+			},
+			"36": {
+				"C_NAME": "GPIO1",
+				"GPIO": "P1",
+				"IRQ": null,
+				"UART": "2_RX",
+				"I2C": "2_SDA"
+			},
+			"37": {
+				"C_NAME": "GPIO0",
+				"GPIO": "P0",
+				"IRQ": null,
+				"UART": "2_TX",
+				"I2C": "2_SCL"
+			}
+		}
+	}
+}

boards/_base/ic/bk7252-qfn68.json

@@ -0,0 +1,259 @@
+{
+	"pcb": {
+		"ic": {
+			"13": {
+				"C_NAME": "GPIO28",
+				"GPIO": "P28",
+				"IRQ": null,
+				"USB": "DN"
+			},
+			"14": {
+				"C_NAME": "GPIO25",
+				"GPIO": "P25",
+				"IRQ": null,
+				"USB": "DP"
+			},
+			"16": {
+				"C_NAME": "GPIO12",
+				"GPIO": "P12",
+				"IRQ": null,
+				"ADC": 6,
+				"UART": "1_CTS"
+			},
+			"17": {
+				"C_NAME": "GPIO13",
+				"GPIO": "P13",
+				"IRQ": null,
+				"ADC": 7,
+				"UART": "1_RTS"
+			},
+			"18": {
+				"C_NAME": "GPIO33",
+				"GPIO": "P33",
+				"IRQ": null,
+				"DVP": "PD1"
+			},
+			"19": {
+				"C_NAME": "GPIO32",
+				"GPIO": "P32",
+				"IRQ": null,
+				"DVP": "PD0"
+			},
+			"20": {
+				"C_NAME": "GPIO29",
+				"GPIO": "P29",
+				"IRQ": null,
+				"DVP": "PCLK"
+			},
+			"21": {
+				"C_NAME": "GPIO27",
+				"GPIO": "P27",
+				"IRQ": null,
+				"DVP": "MCLK"
+			},
+			"22": {
+				"C_NAME": "GPIO30",
+				"GPIO": "P30",
+				"IRQ": null,
+				"DVP": "HSYNC"
+			},
+			"23": {
+				"C_NAME": "GPIO31",
+				"GPIO": "P31",
+				"IRQ": null,
+				"DVP": "VSYNC"
+			},
+			"24": {
+				"C_NAME": "GPIO34",
+				"GPIO": "P34",
+				"IRQ": null,
+				"DVP": "PD2"
+			},
+			"25": {
+				"C_NAME": "GPIO35",
+				"GPIO": "P35",
+				"IRQ": null,
+				"DVP": "PD3"
+			},
+			"26": {
+				"C_NAME": "GPIO36",
+				"GPIO": "P36",
+				"IRQ": null,
+				"DVP": "PD4"
+			},
+			"27": {
+				"C_NAME": "GPIO37",
+				"GPIO": "P37",
+				"IRQ": null,
+				"DVP": "PD5"
+			},
+			"28": {
+				"C_NAME": "GPIO38",
+				"GPIO": "P38",
+				"IRQ": null,
+				"DVP": "PD6"
+			},
+			"29": {
+				"C_NAME": "GPIO39",
+				"GPIO": "P39",
+				"IRQ": null,
+				"DVP": "PD7"
+			},
+			"30": {
+				"C_NAME": "GPIO19",
+				"GPIO": "P19",
+				"IRQ": null,
+				"SD": "D1"
+			},
+			"31": {
+				"C_NAME": "GPIO17",
+				"GPIO": "P17",
+				"IRQ": null,
+				"SD": "D1",
+				"SPI": "MISO"
+			},
+			"32": {
+				"C_NAME": "GPIO14",
+				"GPIO": "P14",
+				"IRQ": null,
+				"SD": "CLK",
+				"SPI": "SCK"
+			},
+			"33": {
+				"C_NAME": "GPIO16",
+				"GPIO": "P16",
+				"IRQ": null,
+				"SD": "D0",
+				"SPI": "MOSI"
+			},
+			"34": {
+				"C_NAME": "GPIO15",
+				"GPIO": "P15",
+				"IRQ": null,
+				"SD": "CMD",
+				"SPI": "CS"
+			},
+			"35": {
+				"C_NAME": "GPIO18",
+				"GPIO": "P18",
+				"IRQ": null,
+				"SD": "D2"
+			},
+			"36": {
+				"C_NAME": "GPIO24",
+				"GPIO": "P24",
+				"IRQ": null,
+				"PWM": 4
+			},
+			"37": {
+				"C_NAME": "GPIO26",
+				"GPIO": "P26",
+				"IRQ": null,
+				"PWM": 5,
+				"IRDA": null
+			},
+			"38": {
+				"C_NAME": "GPIO23",
+				"GPIO": "P23",
+				"IRQ": null,
+				"ADC": 3,
+				"JTAG": "TDO",
+				"FLASH": "FSO"
+			},
+			"39": {
+				"C_NAME": "GPIO22",
+				"GPIO": "P22",
+				"IRQ": null,
+				"JTAG": "TDI",
+				"FLASH": "FSI"
+			},
+			"40": {
+				"C_NAME": "GPIO21",
+				"GPIO": "P21",
+				"IRQ": null,
+				"I2C": "1_SDA",
+				"JTAG": "TMS",
+				"I2S": "MCLK",
+				"FLASH": "^FCS"
+			},
+			"41": {
+				"C_NAME": "GPIO20",
+				"GPIO": "P20",
+				"IRQ": null,
+				"I2C": "1_SCL",
+				"JTAG": "TCK",
+				"FLASH": "FSCK"
+			},
+			"43": {
+				"IO": "I",
+				"CTRL": "CEN"
+			},
+			"45": {
+				"C_NAME": "GPIO5",
+				"GPIO": "P5",
+				"IRQ": null,
+				"ADC": 2,
+				"I2S": "DOUT"
+			},
+			"46": {
+				"C_NAME": "GPIO3",
+				"GPIO": "P3",
+				"IRQ": null,
+				"ADC": 5,
+				"I2S": "WS"
+			},
+			"47": {
+				"C_NAME": "GPIO4",
+				"GPIO": "P4",
+				"IRQ": null,
+				"ADC": 1,
+				"I2S": "DIN"
+			},
+			"48": {
+				"C_NAME": "GPIO2",
+				"GPIO": "P2",
+				"IRQ": null,
+				"ADC": 4,
+				"I2S": "SCK"
+			},
+			"49": {
+				"C_NAME": "GPIO6",
+				"GPIO": "P6",
+				"IRQ": null,
+				"PWM": 0
+			},
+			"50": {
+				"C_NAME": "GPIO7",
+				"GPIO": "P7",
+				"IRQ": null,
+				"PWM": 1
+			},
+			"62": {
+				"C_NAME": "GPIO10",
+				"GPIO": "P10",
+				"IRQ": null,
+				"UART": "1_RX"
+			},
+			"63": {
+				"C_NAME": "GPIO11",
+				"GPIO": "P11",
+				"IRQ": null,
+				"UART": "1_TX"
+			},
+			"64": {
+				"C_NAME": "GPIO1",
+				"GPIO": "P1",
+				"IRQ": null,
+				"UART": "2_RX",
+				"I2C": "2_SDA"
+			},
+			"65": {
+				"C_NAME": "GPIO0",
+				"GPIO": "P0",
+				"IRQ": null,
+				"UART": "2_TX",
+				"I2C": "2_SCL"
+			}
+		}
+	}
+}

boards/_base/pcb/cb2l-test.json

@@ -0,0 +1,120 @@
+{
+	"pcb": {
+		"scale": 11,
+		"test_pads": {
+			"TRST": "cb2l.back.rst.anchor",
+			"TRX1": "cb2l.back.u1_rxd.anchor",
+			"TTX1": "cb2l.back.u1_txd.anchor",
+			"TTX2": "cb2l.back.u2_txd.anchor",
+			"TGND": "cb2l.back.gnd.anchor",
+			"TCSN": "cb2l.back.f_csn.anchor"
+		},
+		"back": [
+			{
+				"type": "rect",
+				"pos": "0,0",
+				"size": "15,17.3",
+				"preset": "${MASK_PRESET}"
+			},
+			{
+				"name": "pins_horz7_2mm_0.7mm",
+				"pos": "1.15,17.3",
+				"vars": {
+					"PINTYPE": "${PINTYPE_HORZ}",
+					"PINDIR": "down"
+				}
+			},
+			{
+				"name": "test_pad_1mm",
+				"pos": "1.5,7.5"
+			},
+			{
+				"name": "label_line_2mm_down",
+				"pos": "0.4,4.7",
+				"vars": {
+					"DIR": "right",
+					"W": 0.2,
+					"H": 2.7
+				}
+			},
+			{
+				"id": "u1_rxd.anchor",
+				"type": "rect",
+				"pos": "0.9,5.0",
+				"size": "0,0",
+				"label_dir": "left",
+				"label_size": 2
+			},
+			{
+				"name": "test_pad_1mm",
+				"pos": "2.2,5.9"
+			},
+			{
+				"id": "u2_txd",
+				"name": "label_line_2mm_up",
+				"pos": "2.2,5.1",
+				"vars": {
+					"DIR": "left",
+					"W": 1.5,
+					"H": 2
+				}
+			},
+			{
+				"name": "test_pad_1mm",
+				"pos": "4.0,5.9"
+			},
+			{
+				"id": "u1_txd",
+				"name": "label_line_2mm_up",
+				"pos": "4.0,5.1",
+				"vars": {
+					"DIR": "left",
+					"W": 3.3,
+					"H": 4
+				}
+			},
+			{
+				"name": "test_pad_1mm",
+				"pos": "9.2,5.9"
+			},
+			{
+				"id": "gnd",
+				"name": "label_line_2mm_up",
+				"pos": "9.2,5.1",
+				"vars": {
+					"DIR": "left",
+					"W": 8.5,
+					"H": 6
+				}
+			},
+			{
+				"name": "test_pad_1mm",
+				"pos": "2.2,10.7"
+			},
+			{
+				"id": "rst",
+				"name": "label_line_2mm_up",
+				"pos": "2.2,9.9",
+				"vars": {
+					"DIR": "left",
+					"W": 1.5,
+					"H": 1.0
+				}
+			},
+			{
+				"name": "test_pad_1mm",
+				"pos": "2.2,12.0"
+			},
+			{
+				"id": "f_csn",
+				"name": "label_line_2mm_down",
+				"pos": "2.2,12.8",
+				"vars": {
+					"DIR": "left",
+					"W": 1.5,
+					"H": 1.0
+				}
+			}
+		]
+	}
+}

boards/_base/pcb/cb2l.json

@@ -0,0 +1,66 @@
+{
+	"pcb": {
+		"templates": [
+			"tuya2l",
+			"rf-15mm-type1",
+			"tuya2l-shield"
+		],
+		"vars": {
+			"MASK_PRESET": "mask_white",
+			"TRACE_COLOR": "#E0E0E0",
+			"SILK_COLOR": "black",
+			"PINTYPE_HORZ": "pin_horz_2mm_cast_hole"
+		},
+		"pinout_hidden": "I2S,I2C,JTAG,FLASH",
+		"pinout": {
+			"1": {
+				"IC": 24,
+				"ARD": "D0"
+			},
+			"2": {
+				"IC": 23,
+				"ARD": "D1"
+			},
+			"3": {
+				"IC": 22,
+				"ARD": "D2"
+			},
+			"4": {
+				"IC": 15,
+				"ARD": "D3"
+			},
+			"5": {
+				"IC": 16,
+				"ARD": "D4"
+			},
+			"6": {
+				"GND": null
+			},
+			"7": {
+				"PWR": 3.3
+			},
+			"TGND": {
+				"GND": null
+			},
+			"TRST": {
+				"CTRL": "CEN"
+			},
+			"TRX1": {
+				"IC": 26,
+				"ARD": "D5"
+			},
+			"TTX2": {
+				"IC": 29,
+				"ARD": "D6"
+			},
+			"TTX1": {
+				"IC": 27,
+				"ARD": "D7"
+			},
+			"TCSN": {
+				"IC": 19,
+				"ARD": "D8"
+			}
+		}
+	}
+}

boards/_base/pcb/cb3l.json

@@ -0,0 +1,83 @@
+{
+	"pcb": {
+		"templates": [
+			"esp12s",
+			"esp12e-shield",
+			"tuya-16x24",
+			"rf-16mm-type1"
+		],
+		"vars": {
+			"MASK_PRESET": "mask_blue_light",
+			"TRACE_COLOR": "#58839B",
+			"SILK_COLOR": "white",
+			"PINTYPE_VERT": "pin_vert_2mm_cast_hole",
+			"PINTYPE_HORZ": "pin_horz_2mm_cast_hole"
+		},
+		"pinout_hidden": "I2S,SD,SPI,I2C,JTAG,FLASH",
+		"pinout": {
+			"1": {
+				"IC": 21
+			},
+			"2": {
+				"IC": 17,
+				"ARD": [
+					"D0",
+					"A0"
+				]
+			},
+			"3": {
+				"IC": 21
+			},
+			"4": {
+				"IC": 11,
+				"ARD": "D1"
+			},
+			"5": {
+				"IC": 15,
+				"ARD": "D2"
+			},
+			"6": {
+				"IC": 16,
+				"ARD": "D3"
+			},
+			"7": {
+				"IC": 22,
+				"ARD": "D4"
+			},
+			"8": {
+				"PWR": 3.3
+			},
+			"9": {
+				"GND": null
+			},
+			"10": {
+				"IC": 25,
+				"ARD": "D5"
+			},
+			"11": {
+				"IC": 29,
+				"ARD": "D6"
+			},
+			"12": {
+				"IC": 19,
+				"ARD": "D7"
+			},
+			"13": {
+				"IC": 24,
+				"ARD": "D8"
+			},
+			"14": {
+				"IC": 23,
+				"ARD": "D9"
+			},
+			"15": {
+				"IC": 26,
+				"ARD": "D10"
+			},
+			"16": {
+				"IC": 27,
+				"ARD": "D11"
+			}
+		}
+	}
+}

boards/_base/pcb/cb3s.json

@@ -0,0 +1,108 @@
+{
+	"pcb": {
+		"templates": [
+			"esp12e-22",
+			"esp12e-shield-nohole",
+			"tuya-16x24",
+			"rf-16mm-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,SD,SPI,SCL2",
+		"pinout": {
+			"1": {
+				"IC": 21
+			},
+			"2": {
+				"IC": 17,
+				"ARD": [
+					"D0",
+					"A0"
+				]
+			},
+			"3": {
+				"IC": 21
+			},
+			"4": {
+				"IC": 11,
+				"ARD": "D1"
+			},
+			"5": {
+				"IC": 15,
+				"ARD": "D2"
+			},
+			"6": {
+				"IC": 16,
+				"ARD": "D3"
+			},
+			"7": {
+				"IC": 22,
+				"ARD": "D4"
+			},
+			"8": {
+				"PWR": 3.3
+			},
+			"9": {
+				"GND": null
+			},
+			"10": {
+				"IC": 25,
+				"ARD": "D5"
+			},
+			"11": {
+				"IC": 29,
+				"ARD": "D6"
+			},
+			"12": {
+				"IC": 19,
+				"ARD": "D7"
+			},
+			"13": {
+				"IC": 24,
+				"ARD": "D8"
+			},
+			"14": {
+				"IC": 23,
+				"ARD": "D9"
+			},
+			"15": {
+				"IC": 26,
+				"ARD": "D10"
+			},
+			"16": {
+				"IC": 27,
+				"ARD": "D11"
+			},
+			"17": {
+				"IC": 17,
+				"ARD": [
+					"D0",
+					"A0"
+				]
+			},
+			"18": {
+				"IC": 18,
+				"ARD": "D12"
+			},
+			"19": {
+				"IC": 19,
+				"ARD": "D7"
+			},
+			"20": {
+				"IC": 20,
+				"ARD": "D13"
+			},
+			"21": {
+				"NC": null
+			},
+			"22": {
+				"NC": null
+			}
+		}
+	}
+}

boards/_base/pcb/cb3se.json

@@ -0,0 +1,106 @@
+{
+	"pcb": {
+		"templates": [
+			"esp12e-22",
+			"esp12e-shield-nohole",
+			"tuya-16x24",
+			"rf-16mm-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,SD,JTAG,FLASH,SCL1",
+		"pinout": {
+			"1": {
+				"IC": 21
+			},
+			"2": {
+				"IC": 17,
+				"ARD": [
+					"D0",
+					"A0"
+				]
+			},
+			"3": {
+				"IC": 21
+			},
+			"4": {
+				"IC": 11,
+				"ARD": "D1"
+			},
+			"5": {
+				"IC": 15,
+				"ARD": "D2"
+			},
+			"6": {
+				"IC": 16,
+				"ARD": "D3"
+			},
+			"7": {
+				"IC": 22,
+				"ARD": "D4"
+			},
+			"8": {
+				"PWR": 3.3
+			},
+			"9": {
+				"GND": null
+			},
+			"10": {
+				"IC": 25,
+				"ARD": "D5"
+			},
+			"11": {
+				"IC": 29,
+				"ARD": "D6"
+			},
+			"12": {
+				"IC": 28,
+				"ARD": "D7"
+			},
+			"13": {
+				"IC": 24,
+				"ARD": "D8"
+			},
+			"14": {
+				"IC": 23,
+				"ARD": "D9"
+			},
+			"15": {
+				"IC": 26,
+				"ARD": "D10"
+			},
+			"16": {
+				"IC": 27,
+				"ARD": "D11"
+			},
+			"17": {
+				"IC": 13,
+				"ARD": "D12"
+			},
+			"18": {
+				"IC": 18,
+				"ARD": "D13"
+			},
+			"19": {
+				"GND": null
+			},
+			"20": {
+				"IC": 20,
+				"ARD": "D14"
+			},
+			"21": {
+				"IC": 14,
+				"ARD": "D15"
+			},
+			"22": {
+				"IC": 12,
+				"ARD": "D16"
+			}
+		}
+	}
+}

boards/_base/realtek-ambz-4mb-980k.json

@@ -0,0 +1,18 @@
+{
+	"build": {
+		"ldscript_sdk": "rlx8711B-symbol-v02-img2_xip1_4M_980k_cpp.ld",
+		"ldscript_arduino": "rlx8711B-symbol-v02-img2_xip1_4M_980k_cpp.ld",
+		"amb_boot_all": "boot_all_C556.bin"
+	},
+	"flash": {
+		"ota1": "0x00B000+0xF5000",
+		"ota2": "0x100000+0xF5000",
+		"kvs": "0x1F5000+0x8000",
+		"userdata": "0x1FD000+0x202000",
+		"rdp": "0x3FF000+0x1000"
+	},
+	"upload": {
+		"flash_size": 4194304,
+		"maximum_size": 1003520
+	}
+}

boards/_base/realtek-ambz.json

@@ -47,10 +47,9 @@
 			}
 		},
 		"links": {
-			"General info": "../../docs/platform/realtek/README.md",
-			"Debugging": "../../docs/platform/realtek/debugging.md",
+			"General info": "../../docs/platform/realtek-amb/README.md",
 			"Flashing guide": "../../docs/platform/realtek-ambz/flashing.md",
-			"ImageTool (AmebaZ/AmebaD)": "https://images.tuyacn.com/smart/Image_Tool/Image_Tool.zip"
+			"Debugging": "../../docs/platform/realtek-ambz/debugging.md"
 		},
 		"extra": [
 			"RDP is most likely not used in Tuya firmwares, as the System Data partition contains an incorrect offset 0xFF000 for RDP, which is in the middle of OTA2 image.",

boards/_base/realtek-ambz2.json

@@ -29,7 +29,7 @@
 			"voltage": "3.0V - 3.6V"
 		},
 		"links": {
-			"General info": "../../docs/platform/realtek/README.md"
+			"General info": "../../docs/platform/realtek-amb/README.md"
 		}
 	}
 }

boards/bw12.json

@@ -3,7 +3,7 @@
 		"realtek-ambz",
 		"realtek-ambz-2mb-468k",
 		"realtek-ambz-bx",
-		"pcb/ic-rtl8710bn",
+		"ic/rtl8710bn",
 		"pcb/bw12"
 	],
 	"build": {
@@ -17,6 +17,7 @@
 		"symbol": "BW12"
 	},
 	"doc": {
+		"fccid": "2ARI3-BW1X",
 		"links": {
 			"Vendor datasheet": "https://docs.ai-thinker.com/_media/rtl8710/hardware/bw12_datasheet_en.pdf"
 		}

boards/bw12/README.md

@@ -4,14 +4,13 @@
 
 [Product page](http://www.ai-thinker.com/pro_view-13.html)
 
-- [General info](../../docs/platform/realtek/README.md)
-- [Debugging](../../docs/platform/realtek/debugging.md)
+- [General info](../../docs/platform/realtek-amb/README.md)
 - [Flashing guide](../../docs/platform/realtek-ambz/flashing.md)
-- [ImageTool (AmebaZ/AmebaD)](https://images.tuyacn.com/smart/Image_Tool/Image_Tool.zip)
+- [Debugging](../../docs/platform/realtek-ambz/debugging.md)
 - [Vendor datasheet](https://docs.ai-thinker.com/_media/rtl8710/hardware/bw12_datasheet_en.pdf)
 
 Parameter    | Value
--------------|----------------------------------
+-------------|------------------------------------------
 Board code   | `bw12`
 MCU          | RTL8710BX
 Manufacturer | Realtek
@@ -22,6 +21,7 @@ RAM size     | 256 KiB
 Voltage      | 3.0V - 3.6V
 I/O          | 11x GPIO, 6x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
+FCC ID       | [2ARI3-BW1X](https://fccid.io/2ARI3-BW1X)
 
 ## Usage
 
@@ -36,6 +36,15 @@ board = bw12
 framework = arduino
 ```
 
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: bw12
+  framework:
+    version: dev
+```
+
 ## Pinout
 
 ![Pinout](pinout_bw12.svg)

boards/bw12/variant.h

@@ -49,3 +49,32 @@
 #define PIN_SERIAL0_TX          10u // PA_23
 #define PIN_SERIAL2_RX          1u  // PA_29
 #define PIN_SERIAL2_TX          5u  // PA_30
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC1  3u  // PA_19
+#define PIN_FUNCTION_CS0   3u  // PA_19
+#define PIN_FUNCTION_CS1   3u  // PA_19
+#define PIN_FUNCTION_CTS0  3u  // PA_19
+#define PIN_FUNCTION_MISO0 4u  // PA_22
+#define PIN_FUNCTION_MISO1 4u  // PA_22
+#define PIN_FUNCTION_MOSI0 10u // PA_23
+#define PIN_FUNCTION_MOSI1 10u // PA_23
+#define PIN_FUNCTION_PA00  2u  // PA_0
+#define PIN_FUNCTION_PA05  0u  // PA_5
+#define PIN_FUNCTION_PA12  7u  // PA_12
+#define PIN_FUNCTION_PA14  6u  // PA_14
+#define PIN_FUNCTION_PA15  8u  // PA_15
+#define PIN_FUNCTION_PA18  9u  // PA_18
+#define PIN_FUNCTION_PA19  3u  // PA_19
+#define PIN_FUNCTION_PA22  4u  // PA_22
+#define PIN_FUNCTION_PA23  10u // PA_23
+#define PIN_FUNCTION_PA29  1u  // PA_29
+#define PIN_FUNCTION_PA30  5u  // PA_30
+#define PIN_FUNCTION_RTS0  4u  // PA_22
+#define PIN_FUNCTION_RX0   9u  // PA_18
+#define PIN_FUNCTION_RX2   1u  // PA_29
+#define PIN_FUNCTION_SCK0  9u  // PA_18
+#define PIN_FUNCTION_SCK1  9u  // PA_18
+#define PIN_FUNCTION_TX0   10u // PA_23
+#define PIN_FUNCTION_TX2   5u  // PA_30

boards/bw15.json

@@ -3,7 +3,7 @@
 		"realtek-ambz2",
 		"realtek-ambz2-8720",
 		"realtek-ambz2-2mb-992k",
-		"pcb/ic-rtl8720cf",
+		"ic/rtl8720cf",
 		"pcb/bw15"
 	],
 	"build": {
@@ -17,6 +17,7 @@
 		"symbol": "BW15"
 	},
 	"doc": {
+		"fccid": "2AXVG-BW15",
 		"links": {
 			"Vendor datasheet": "https://docs.ai-thinker.com/_media/rtl8710/docs/bw15_datasheet_en.pdf"
 		}

boards/bw15/README.md

@@ -4,11 +4,11 @@
 
 [Product page](https://docs.ai-thinker.com/_media/rtl8710/docs/bw15_datasheet_en.pdf)
 
-- [General info](../../docs/platform/realtek/README.md)
+- [General info](../../docs/platform/realtek-amb/README.md)
 - [Vendor datasheet](https://docs.ai-thinker.com/_media/rtl8710/docs/bw15_datasheet_en.pdf)
 
 Parameter    | Value
--------------|--------------------------
+-------------|------------------------------------------
 Board code   | `bw15`
 MCU          | RTL8720CF
 Manufacturer | Realtek
@@ -20,6 +20,7 @@ Voltage      | 3.0V - 3.6V
 I/O          | 13x GPIO, 8x PWM, 3x UART
 Wi-Fi        | 802.11 b/g/n
 BLE          | v4.2
+FCC ID       | [2AXVG-BW15](https://fccid.io/2AXVG-BW15)
 
 ## Usage
 
@@ -34,6 +35,15 @@ board = bw15
 framework = arduino
 ```
 
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: bw15
+  framework:
+    version: dev
+```
+
 ## Pinout
 
 ![Pinout](pinout_bw15.svg)

boards/cb2l.json

@@ -0,0 +1,23 @@
+{
+	"_base": [
+		"beken-72xx",
+		"beken-7231n",
+		"beken-7231n-tuya",
+		"ic/bk7231-qfn32",
+		"pcb/cb2l",
+		"pcb/cb2l-test"
+	],
+	"build": {
+		"mcu": "bk7231n",
+		"variant": "cb2l"
+	},
+	"name": "CB2L Wi-Fi Module",
+	"url": "https://developer.tuya.com/en/docs/iot/cb2l-module-datasheet?id=Kai2eku1m3pyl",
+	"vendor": "Tuya Inc.",
+	"doc": {
+		"fccid": "2ANDL-CB2L"
+	},
+	"pcb": {
+		"symbol": "CB2L"
+	}
+}

boards/cb2l/README.md

@@ -0,0 +1,82 @@
+# CB2L Wi-Fi Module
+
+*by Tuya Inc.*
+
+[Product page](https://developer.tuya.com/en/docs/iot/cb2l-module-datasheet?id=Kai2eku1m3pyl)
+
+- [General info](../../docs/platform/beken-72xx/README.md)
+- [Flashing guide](../../docs/platform/beken-72xx/flashing.md)
+
+Parameter    | Value
+-------------|------------------------------------------
+Board code   | `cb2l`
+MCU          | BK7231N
+Manufacturer | Beken
+Series       | BK72XX
+Frequency    | 120 MHz
+Flash size   | 2 MiB
+RAM size     | 256 KiB
+Voltage      | 3.0V - 3.6V
+I/O          | 9x GPIO, 5x PWM, 2x UART
+Wi-Fi        | 802.11 b/g/n
+Bluetooth    | BLE v5.1
+FCC ID       | [2ANDL-CB2L](https://fccid.io/2ANDL-CB2L)
+
+## Usage
+
+**Board code:** `cb2l`
+
+In `platformio.ini`:
+
+```ini
+[env:cb2l]
+platform = libretuya
+board = cb2l
+framework = arduino
+```
+
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: cb2l
+  framework:
+    version: dev
+```
+
+## Pinout
+
+![Pinout](pinout_cb2l.svg)
+
+## Arduino Core pin mapping
+
+No. | Pin | UART     | I²C      | SPI | PWM  | Other
+----|-----|----------|----------|-----|------|------
+D0  | P8  |          |          |     | PWM2 |
+D1  | P7  |          |          |     | PWM1 |
+D2  | P6  |          |          |     | PWM0 |
+D3  | P26 |          |          |     | PWM5 |
+D4  | P24 |          |          |     | PWM4 |
+D5  | P10 | UART1_RX |          |     |      |
+D6  | P0  | UART2_TX | I2C2_SCL |     |      |
+D7  | P11 | UART1_TX |          |     |      |
+D8  | P21 |          | I2C1_SDA |     |      | TMS
+
+## 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
+Calibration     | 0x1D0000 | 4 KiB / 0x1000     | 0x1D1000
+Network Data    | 0x1D1000 | 4 KiB / 0x1000     | 0x1D2000
+TLV Store       | 0x1D2000 | 4 KiB / 0x1000     | 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.

boards/cb2l/pinout_cb2l.svg

@@ -0,0 +1,258 @@
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+</svg>

boards/cb2l/pins_arduino.h

@@ -0,0 +1 @@
+#include "variant.h"

boards/cb2l/variant.cpp

@@ -0,0 +1,30 @@
+/* This file was auto-generated from cb2l.json using boardgen */
+
+#include <Arduino.h>
+
+extern "C" {
+
+// clang-format off
+PinInfo pinTable[PINS_COUNT] = {
+	// D0: P8, PWM2
+	{GPIO8,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D1: P7, PWM1
+	{GPIO7,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D2: P6, PWM0
+	{GPIO6,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D3: P26, PWM5, IRDA
+	{GPIO26, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D4: P24, PWM4
+	{GPIO24, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D5: P10, UART1_RX
+	{GPIO10, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D6: P0, UART2_TX, I2C2_SCL
+	{GPIO0,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART,           PIN_NONE, 0},
+	// D7: P11, UART1_TX
+	{GPIO11, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D8: P21, I2C1_SDA, TMS, MCLK, ^FCS
+	{GPIO21, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_I2S | PIN_JTAG, PIN_NONE, 0},
+};
+// clang-format on
+
+} // extern "C"

boards/cb2l/variant.h

@@ -0,0 +1,49 @@
+/* This file was auto-generated from cb2l.json using boardgen */
+
+#pragma once
+
+#include <WVariant.h>
+
+// clang-format off
+
+// Pins
+// ----
+#define PINS_COUNT         9
+#define NUM_DIGITAL_PINS   9
+#define NUM_ANALOG_OUTPUTS 0
+
+// SPI Interfaces
+// --------------
+#define SPI_INTERFACES_COUNT 0
+
+// Wire Interfaces
+// ---------------
+#define WIRE_INTERFACES_COUNT 0
+
+// Serial ports
+// ------------
+#define SERIAL_INTERFACES_COUNT 1
+#define PIN_SERIAL1_RX          5u // GPIO10
+#define PIN_SERIAL1_TX          7u // GPIO11
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_P0   6u // GPIO0
+#define PIN_FUNCTION_P6   2u // GPIO6
+#define PIN_FUNCTION_P7   1u // GPIO7
+#define PIN_FUNCTION_P8   0u // GPIO8
+#define PIN_FUNCTION_P10  5u // GPIO10
+#define PIN_FUNCTION_P11  7u // GPIO11
+#define PIN_FUNCTION_P21  8u // GPIO21
+#define PIN_FUNCTION_P24  4u // GPIO24
+#define PIN_FUNCTION_P26  3u // GPIO26
+#define PIN_FUNCTION_PWM0 2u // GPIO6
+#define PIN_FUNCTION_PWM1 1u // GPIO7
+#define PIN_FUNCTION_PWM2 0u // GPIO8
+#define PIN_FUNCTION_PWM4 4u // GPIO24
+#define PIN_FUNCTION_PWM5 3u // GPIO26
+#define PIN_FUNCTION_RX1  5u // GPIO10
+#define PIN_FUNCTION_SCL2 6u // GPIO0
+#define PIN_FUNCTION_SDA1 8u // GPIO21
+#define PIN_FUNCTION_TX1  7u // GPIO11
+#define PIN_FUNCTION_TX2  6u // GPIO0

boards/cb2s.json

@@ -3,7 +3,7 @@
 		"beken-72xx",
 		"beken-7231n",
 		"beken-7231n-tuya",
-		"pcb/ic-bk7231-qfn32",
+		"ic/bk7231-qfn32",
 		"pcb/cb2s",
 		"pcb/cb2s-test"
 	],
@@ -14,6 +14,9 @@
 	"name": "CB2S Wi-Fi Module",
 	"url": "https://developer.tuya.com/en/docs/iot/cb2s-module-datasheet?id=Kafgfsa2aaypq",
 	"vendor": "Tuya Inc.",
+	"doc": {
+		"fccid": "2ANDL-CB2S"
+	},
 	"pcb": {
 		"symbol": "CB2S"
 	}

boards/cb2s/README.md

@@ -6,10 +6,9 @@
 
 - [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   | `cb2s`
 MCU          | BK7231N
 Manufacturer | Beken
@@ -21,6 +20,7 @@ Voltage      | 3.0V - 3.6V
 I/O          | 11x GPIO, 5x PWM, 2x UART, 1x ADC
 Wi-Fi        | 802.11 b/g/n
 Bluetooth    | BLE v5.1
+FCC ID       | [2ANDL-CB2S](https://fccid.io/2ANDL-CB2S)
 
 ## Usage
 
@@ -35,6 +35,15 @@ board = cb2s
 framework = arduino
 ```
 
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: cb2s
+  framework:
+    version: dev
+```
+
 ## Pinout
 
 ![Pinout](pinout_cb2s.svg)
@@ -67,8 +76,9 @@ 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
+Calibration     | 0x1D0000 | 4 KiB / 0x1000     | 0x1D1000
+Network Data    | 0x1D1000 | 4 KiB / 0x1000     | 0x1D2000
+TLV Store       | 0x1D2000 | 4 KiB / 0x1000     | 0x1D3000
 Key-Value Store | 0x1D3000 | 32 KiB / 0x8000    | 0x1DB000
 User Data       | 0x1DB000 | 148 KiB / 0x25000  | 0x200000
 

boards/cb2s/variant.h

@@ -35,3 +35,30 @@
 #define PIN_SERIAL1_TX          5u // GPIO11
 #define PIN_SERIAL2_RX          9u // GPIO1
 #define PIN_SERIAL2_TX          8u // GPIO0
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC3 3u  // GPIO23
+#define PIN_FUNCTION_P0   8u  // GPIO0
+#define PIN_FUNCTION_P1   9u  // GPIO1
+#define PIN_FUNCTION_P6   0u  // GPIO6
+#define PIN_FUNCTION_P7   1u  // GPIO7
+#define PIN_FUNCTION_P8   2u  // GPIO8
+#define PIN_FUNCTION_P10  4u  // GPIO10
+#define PIN_FUNCTION_P11  5u  // GPIO11
+#define PIN_FUNCTION_P21  10u // GPIO21
+#define PIN_FUNCTION_P23  3u  // GPIO23
+#define PIN_FUNCTION_P24  6u  // GPIO24
+#define PIN_FUNCTION_P26  7u  // GPIO26
+#define PIN_FUNCTION_PWM0 0u  // GPIO6
+#define PIN_FUNCTION_PWM1 1u  // GPIO7
+#define PIN_FUNCTION_PWM2 2u  // GPIO8
+#define PIN_FUNCTION_PWM4 6u  // GPIO24
+#define PIN_FUNCTION_PWM5 7u  // GPIO26
+#define PIN_FUNCTION_RX1  4u  // GPIO10
+#define PIN_FUNCTION_RX2  9u  // GPIO1
+#define PIN_FUNCTION_SCL2 8u  // GPIO0
+#define PIN_FUNCTION_SDA1 10u // GPIO21
+#define PIN_FUNCTION_SDA2 9u  // GPIO1
+#define PIN_FUNCTION_TX1  5u  // GPIO11
+#define PIN_FUNCTION_TX2  8u  // GPIO0

boards/cb3l.json

@@ -0,0 +1,22 @@
+{
+	"_base": [
+		"beken-72xx",
+		"beken-7231n",
+		"beken-7231n-tuya",
+		"ic/bk7231-qfn32",
+		"pcb/cb3l"
+	],
+	"build": {
+		"mcu": "bk7231n",
+		"variant": "cb3l"
+	},
+	"name": "CB3L Wi-Fi Module",
+	"url": "https://developer.tuya.com/en/docs/iot/cb3l-module-datasheet?id=Kai51ngmrh3qm",
+	"vendor": "Tuya Inc.",
+	"doc": {
+		"fccid": "2ANDL-CB3L"
+	},
+	"pcb": {
+		"symbol": "CB3L"
+	}
+}

boards/cb3l/README.md

@@ -0,0 +1,86 @@
+# CB3L Wi-Fi Module
+
+*by Tuya Inc.*
+
+[Product page](https://developer.tuya.com/en/docs/iot/cb3l-module-datasheet?id=Kai51ngmrh3qm)
+
+- [General info](../../docs/platform/beken-72xx/README.md)
+- [Flashing guide](../../docs/platform/beken-72xx/flashing.md)
+
+Parameter    | Value
+-------------|------------------------------------------
+Board code   | `cb3l`
+MCU          | BK7231N
+Manufacturer | Beken
+Series       | BK72XX
+Frequency    | 120 MHz
+Flash size   | 2 MiB
+RAM size     | 256 KiB
+Voltage      | 3.0V - 3.6V
+I/O          | 12x GPIO, 6x PWM, 2x UART, 1x ADC
+Wi-Fi        | 802.11 b/g/n
+Bluetooth    | BLE v5.1
+FCC ID       | [2ANDL-CB3L](https://fccid.io/2ANDL-CB3L)
+
+## Usage
+
+**Board code:** `cb3l`
+
+In `platformio.ini`:
+
+```ini
+[env:cb3l]
+platform = libretuya
+board = cb3l
+framework = arduino
+```
+
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: cb3l
+  framework:
+    version: dev
+```
+
+## Pinout
+
+![Pinout](pinout_cb3l.svg)
+
+## Arduino Core pin mapping
+
+No. | Pin       | UART     | I²C      | SPI | PWM  | Other
+----|-----------|----------|----------|-----|------|------
+D0  | P23       |          |          |     |      | TDO
+D1  | P14       |          |          | SCK |      |
+D2  | P26       |          |          |     | PWM5 |
+D3  | P24       |          |          |     | PWM4 |
+D4  | P6        |          |          |     | PWM0 |
+D5  | P9        |          |          |     | PWM3 |
+D6  | P0        | UART2_TX | I2C2_SCL |     |      |
+D7  | P21       |          | I2C1_SDA |     |      | TMS
+D8  | P8        |          |          |     | PWM2 |
+D9  | P7        |          |          |     | PWM1 |
+D10 | P10       | UART1_RX |          |     |      |
+D11 | P11       | UART1_TX |          |     |      |
+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
+Calibration     | 0x1D0000 | 4 KiB / 0x1000     | 0x1D1000
+Network Data    | 0x1D1000 | 4 KiB / 0x1000     | 0x1D2000
+TLV Store       | 0x1D2000 | 4 KiB / 0x1000     | 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.

boards/cb3l/pinout_cb3l.svg

@@ -0,0 +1,253 @@
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="27.716666666666665" y="27.183333333333334">D3</text>
+    <g transform="translate(22.93102602061156,26.383333333333333)">
+        <rect fill="#afa35e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="24.416666666666664" y="27.183333333333334">PWM4</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="33.31666666666666" y="29.083333333333332"/>
+    <g transform="translate(29.53102602061156,28.383333333333333)">
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+    <g transform="translate(26.531026020611563,28.383333333333333)">
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+    </g>
+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="27.716666666666665" y="29.183333333333334">D4</text>
+    <g transform="translate(22.93102602061156,28.383333333333333)">
+        <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="24.416666666666664" y="29.183333333333334">PWM0</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="33.31666666666666" y="31.083333333333332"/>
+    <g transform="translate(29.53102602061156,30.383333333333333)">
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="31.016666666666662" y="31.183333333333334">3V3</text>
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+    <g transform="translate(56.33102602061157,30.383333333333333)">
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="57.81666666666667" y="31.183333333333334">GND</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.916666666666664" y="29.083333333333332"/>
+    <g transform="translate(56.33102602061157,28.383333333333333)">
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+    <g transform="translate(59.93102602061157,28.383333333333333)">
+        <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="61.11666666666667" y="29.183333333333334">D5</text>
+    <g transform="translate(62.93102602061157,28.383333333333333)">
+        <rect fill="#afa35e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="57.81666666666667" y="27.183333333333334">P0</text>
+    <g transform="translate(59.93102602061157,26.383333333333333)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="61.11666666666667" y="27.183333333333334">D6</text>
+    <g transform="translate(62.93102602061157,26.383333333333333)">
+        <rect fill="#dcd4ee" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="64.41666666666667" y="27.183333333333334">TX2</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.916666666666664" y="25.083333333333332"/>
+    <g transform="translate(56.33102602061157,24.383333333333333)">
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="57.81666666666667" y="25.183333333333334">P21</text>
+    <g transform="translate(59.93102602061157,24.383333333333333)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="61.11666666666667" y="25.183333333333334">D7</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.916666666666664" y="23.08333333333333"/>
+    <g transform="translate(56.33102602061157,22.38333333333333)">
+        <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="57.81666666666667" y="23.18333333333333">P8</text>
+    <g transform="translate(59.93102602061157,22.38333333333333)">
+        <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="61.11666666666667" y="23.18333333333333">D8</text>
+    <g transform="translate(62.93102602061157,22.38333333333333)">
+        <rect fill="#afa35e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="64.41666666666667" y="23.18333333333333">PWM2</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.916666666666664" y="21.08333333333333"/>
+    <g transform="translate(56.33102602061157,20.38333333333333)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="57.81666666666667" y="21.18333333333333">P7</text>
+    <g transform="translate(59.93102602061157,20.38333333333333)">
+        <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="61.11666666666667" y="21.18333333333333">D9</text>
+    <g transform="translate(62.93102602061157,20.38333333333333)">
+        <rect fill="#afa35e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="64.41666666666667" y="21.18333333333333">PWM1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.916666666666664" y="19.08333333333333"/>
+    <g transform="translate(56.33102602061157,18.38333333333333)">
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+    <g transform="translate(59.93102602061157,18.38333333333333)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="61.11666666666667" y="19.18333333333333">D10</text>
+    <g transform="translate(62.93102602061157,18.38333333333333)">
+        <rect fill="#dcd4ee" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="64.41666666666667" y="19.18333333333333">RX1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.916666666666664" y="17.08333333333333"/>
+    <g transform="translate(56.33102602061157,16.38333333333333)">
+        <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="57.81666666666667" y="17.18333333333333">P11</text>
+    <g transform="translate(59.93102602061157,16.38333333333333)">
+        <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="61.11666666666667" y="17.18333333333333">D11</text>
+    <g transform="translate(62.93102602061157,16.38333333333333)">
+        <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="64.41666666666667" y="17.18333333333333">TX1</text>
+</svg>

boards/cb3l/pins_arduino.h

@@ -0,0 +1 @@
+#include "variant.h"

boards/cb3l/variant.cpp

@@ -0,0 +1,36 @@
+/* This file was auto-generated from cb3l.json using boardgen */
+
+#include <Arduino.h>
+
+extern "C" {
+
+// clang-format off
+PinInfo pinTable[PINS_COUNT] = {
+	// D0: P23, ADC3, TDO, FSO
+	{GPIO23, PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_JTAG,           PIN_NONE, 0},
+	// D1: P14, SD_CLK, SCK
+	{GPIO14, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D2: P26, PWM5, IRDA
+	{GPIO26, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D3: P24, PWM4
+	{GPIO24, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D4: P6, PWM0
+	{GPIO6,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D5: P9, PWM3
+	{GPIO9,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D6: P0, UART2_TX, I2C2_SCL
+	{GPIO0,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART,           PIN_NONE, 0},
+	// D7: P21, I2C1_SDA, TMS, MCLK, ^FCS
+	{GPIO21, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_I2S | PIN_JTAG, PIN_NONE, 0},
+	// D8: P8, PWM2
+	{GPIO8,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D9: P7, PWM1
+	{GPIO7,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D10: P10, UART1_RX
+	{GPIO10, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D11: P11, UART1_TX
+	{GPIO11, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+};
+// clang-format on
+
+} // extern "C"

boards/cb3l/variant.h

@@ -0,0 +1,61 @@
+/* This file was auto-generated from cb3l.json using boardgen */
+
+#pragma once
+
+#include <WVariant.h>
+
+// clang-format off
+
+// Pins
+// ----
+#define PINS_COUNT         12
+#define NUM_DIGITAL_PINS   12
+#define NUM_ANALOG_INPUTS  1
+#define NUM_ANALOG_OUTPUTS 0
+
+// Analog pins
+// -----------
+#define PIN_A0 0u     // GPIO23
+#define A0     PIN_A0
+
+// SPI Interfaces
+// --------------
+#define SPI_INTERFACES_COUNT 0
+
+// Wire Interfaces
+// ---------------
+#define WIRE_INTERFACES_COUNT 0
+
+// Serial ports
+// ------------
+#define SERIAL_INTERFACES_COUNT 1
+#define PIN_SERIAL1_RX          10u // GPIO10
+#define PIN_SERIAL1_TX          11u // GPIO11
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC3 0u  // GPIO23
+#define PIN_FUNCTION_P0   6u  // GPIO0
+#define PIN_FUNCTION_P6   4u  // GPIO6
+#define PIN_FUNCTION_P7   9u  // GPIO7
+#define PIN_FUNCTION_P8   8u  // GPIO8
+#define PIN_FUNCTION_P9   5u  // GPIO9
+#define PIN_FUNCTION_P10  10u // GPIO10
+#define PIN_FUNCTION_P11  11u // GPIO11
+#define PIN_FUNCTION_P14  1u  // GPIO14
+#define PIN_FUNCTION_P21  7u  // GPIO21
+#define PIN_FUNCTION_P23  0u  // GPIO23
+#define PIN_FUNCTION_P24  3u  // GPIO24
+#define PIN_FUNCTION_P26  2u  // GPIO26
+#define PIN_FUNCTION_PWM0 4u  // GPIO6
+#define PIN_FUNCTION_PWM1 9u  // GPIO7
+#define PIN_FUNCTION_PWM2 8u  // GPIO8
+#define PIN_FUNCTION_PWM3 5u  // GPIO9
+#define PIN_FUNCTION_PWM4 3u  // GPIO24
+#define PIN_FUNCTION_PWM5 2u  // GPIO26
+#define PIN_FUNCTION_RX1  10u // GPIO10
+#define PIN_FUNCTION_SCK  1u  // GPIO14
+#define PIN_FUNCTION_SCL2 6u  // GPIO0
+#define PIN_FUNCTION_SDA1 7u  // GPIO21
+#define PIN_FUNCTION_TX1  11u // GPIO11
+#define PIN_FUNCTION_TX2  6u  // GPIO0

boards/cb3s.json

@@ -0,0 +1,22 @@
+{
+	"_base": [
+		"beken-72xx",
+		"beken-7231n",
+		"beken-7231n-tuya",
+		"ic/bk7231-qfn32",
+		"pcb/cb3s"
+	],
+	"build": {
+		"mcu": "bk7231n",
+		"variant": "cb3s"
+	},
+	"name": "CB3S Wi-Fi Module",
+	"url": "https://developer.tuya.com/en/docs/iot/cb3s?id=Kai94mec0s076",
+	"vendor": "Tuya Inc.",
+	"doc": {
+		"fccid": "2ANDL-CB3S"
+	},
+	"pcb": {
+		"symbol": "CB3S"
+	}
+}

boards/cb3s/README.md

@@ -0,0 +1,88 @@
+# CB3S Wi-Fi Module
+
+*by Tuya Inc.*
+
+[Product page](https://developer.tuya.com/en/docs/iot/cb3s?id=Kai94mec0s076)
+
+- [General info](../../docs/platform/beken-72xx/README.md)
+- [Flashing guide](../../docs/platform/beken-72xx/flashing.md)
+
+Parameter    | Value
+-------------|------------------------------------------
+Board code   | `cb3s`
+MCU          | BK7231N
+Manufacturer | Beken
+Series       | BK72XX
+Frequency    | 120 MHz
+Flash size   | 2 MiB
+RAM size     | 256 KiB
+Voltage      | 3.0V - 3.6V
+I/O          | 14x GPIO, 6x PWM, 2x UART, 1x ADC
+Wi-Fi        | 802.11 b/g/n
+Bluetooth    | BLE v5.1
+FCC ID       | [2ANDL-CB3S](https://fccid.io/2ANDL-CB3S)
+
+## Usage
+
+**Board code:** `cb3s`
+
+In `platformio.ini`:
+
+```ini
+[env:cb3s]
+platform = libretuya
+board = cb3s
+framework = arduino
+```
+
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: cb3s
+  framework:
+    version: dev
+```
+
+## Pinout
+
+![Pinout](pinout_cb3s.svg)
+
+## Arduino Core pin mapping
+
+No. | Pin       | UART     | I²C      | SPI | PWM  | Other
+----|-----------|----------|----------|-----|------|------
+D0  | P23       |          |          |     |      | TDO
+D1  | P14       |          |          | SCK |      |
+D2  | P26       |          |          |     | PWM5 |
+D3  | P24       |          |          |     | PWM4 |
+D4  | P6        |          |          |     | PWM0 |
+D5  | P9        |          |          |     | PWM3 |
+D6  | P0        | UART2_TX | I2C2_SCL |     |      |
+D7  | P21       |          | I2C1_SDA |     |      | TMS
+D8  | P8        |          |          |     | PWM2 |
+D9  | P7        |          |          |     | PWM1 |
+D10 | P10       | UART1_RX |          |     |      |
+D11 | P11       | UART1_TX |          |     |      |
+D12 | P22       |          |          |     |      | TDI
+D13 | P20       |          | I2C1_SCL |     |      | TCK
+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
+Calibration     | 0x1D0000 | 4 KiB / 0x1000     | 0x1D1000
+Network Data    | 0x1D1000 | 4 KiB / 0x1000     | 0x1D2000
+TLV Store       | 0x1D2000 | 4 KiB / 0x1000     | 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.

boards/cb3s/pinout_cb3s.svg

@@ -0,0 +1,375 @@
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+        <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="57.516666666666666" y="23.733333333333334">P0</text>
+    <g transform="translate(59.631026020611564,22.933333333333334)">
+        <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="60.81666666666666" y="23.733333333333334">D6</text>
+    <g transform="translate(62.631026020611564,22.933333333333334)">
+        <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="64.11666666666666" y="23.733333333333334">TX2</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.61666666666666" y="21.633333333333333"/>
+    <g transform="translate(56.03102602061156,20.933333333333334)">
+        <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="57.516666666666666" y="21.733333333333334">P21</text>
+    <g transform="translate(59.631026020611564,20.933333333333334)">
+        <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="60.81666666666666" y="21.733333333333334">D7</text>
+    <g transform="translate(62.631026020611564,20.933333333333334)">
+        <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="64.11666666666666" y="21.733333333333334">SDA1</text>
+    <g transform="translate(66.23102602061155,20.933333333333334)">
+        <rect fill="#ffe680" 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="67.71666666666665" y="21.733333333333334">TMS</text>
+    <g transform="translate(69.83102602061156,20.933333333333334)">
+        <rect fill="#f68a1e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="middle" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="71.31666666666666" y="20.720833333333335">___</text>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="71.31666666666666" y="21.839583333333334">FCS</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.61666666666666" y="19.63333333333333"/>
+    <g transform="translate(56.03102602061156,18.93333333333333)">
+        <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="57.516666666666666" y="19.73333333333333">P8</text>
+    <g transform="translate(59.631026020611564,18.93333333333333)">
+        <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="60.81666666666666" y="19.73333333333333">D8</text>
+    <g transform="translate(62.631026020611564,18.93333333333333)">
+        <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="64.11666666666666" y="19.73333333333333">PWM2</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.61666666666666" y="17.63333333333333"/>
+    <g transform="translate(56.03102602061156,16.93333333333333)">
+        <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="57.516666666666666" y="17.73333333333333">P7</text>
+    <g transform="translate(59.631026020611564,16.93333333333333)">
+        <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="60.81666666666666" y="17.73333333333333">D9</text>
+    <g transform="translate(62.631026020611564,16.93333333333333)">
+        <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="64.11666666666666" y="17.73333333333333">PWM1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.61666666666666" y="15.633333333333331"/>
+    <g transform="translate(56.03102602061156,14.93333333333333)">
+        <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="57.516666666666666" y="15.73333333333333">P10</text>
+    <g transform="translate(59.631026020611564,14.93333333333333)">
+        <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="60.81666666666666" y="15.73333333333333">D10</text>
+    <g transform="translate(62.631026020611564,14.93333333333333)">
+        <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="64.11666666666666" y="15.73333333333333">RX1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="52.61666666666666" y="13.633333333333331"/>
+    <g transform="translate(56.03102602061156,12.93333333333333)">
+        <rect fill="#800000" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="57.516666666666666" y="13.73333333333333">P11</text>
+    <g transform="translate(59.631026020611564,12.93333333333333)">
+        <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="60.81666666666666" y="13.73333333333333">D11</text>
+    <g transform="translate(62.631026020611564,12.93333333333333)">
+        <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="64.11666666666666" y="13.73333333333333">TX1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="36.26666666666666" y="31.383333333333333"/>
+    <g transform="translate(32.48102602061156,30.683333333333334)">
+        <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="33.96666666666666" y="31.483333333333334">P23</text>
+    <g transform="translate(28.881026020611554,30.683333333333334)">
+        <rect fill="#8ad039" 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="30.366666666666656" y="31.483333333333334">ADC3</text>
+    <g transform="translate(25.881026020611557,30.683333333333334)">
+        <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="27.06666666666666" y="31.483333333333334">D0</text>
+    <g transform="translate(22.881026020611557,30.683333333333334)">
+        <rect fill="#16a352" 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="24.06666666666666" y="31.483333333333334">A0</text>
+    <g transform="translate(19.281026020611556,30.683333333333334)">
+        <rect fill="#ffe680" 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="20.76666666666666" y="31.483333333333334">TDO</text>
+    <g transform="translate(15.681026020611556,30.683333333333334)">
+        <rect fill="#f68a1e" 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="17.166666666666657" y="31.483333333333334">FSO</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="36.26666666666666" y="33.38333333333333"/>
+    <g transform="translate(32.48102602061156,32.68333333333334)">
+        <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="33.96666666666666" y="33.483333333333334">P22</text>
+    <g transform="translate(29.481026020611555,32.68333333333334)">
+        <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="30.666666666666657" y="33.483333333333334">D12</text>
+    <g transform="translate(25.881026020611557,32.68333333333334)">
+        <rect fill="#ffe680" 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="27.36666666666666" y="33.483333333333334">TDI</text>
+    <g transform="translate(22.281026020611556,32.68333333333334)">
+        <rect fill="#f68a1e" 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="23.76666666666666" y="33.483333333333334">FSI</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="36.26666666666666" y="35.38333333333333"/>
+    <g transform="translate(32.48102602061156,34.68333333333334)">
+        <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="33.96666666666666" y="35.483333333333334">P21</text>
+    <g transform="translate(29.481026020611555,34.68333333333334)">
+        <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="30.666666666666657" y="35.483333333333334">D7</text>
+    <g transform="translate(25.881026020611557,34.68333333333334)">
+        <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="27.36666666666666" y="35.483333333333334">SDA1</text>
+    <g transform="translate(22.281026020611556,34.68333333333334)">
+        <rect fill="#ffe680" 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="23.76666666666666" y="35.483333333333334">TMS</text>
+    <g transform="translate(18.681026020611558,34.68333333333334)">
+        <rect fill="#f68a1e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
+    </g>
+    <text dominant-baseline="middle" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="20.16666666666666" y="34.47083333333334">___</text>
+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="20.16666666666666" y="35.58958333333334">FCS</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="49.36666666666666" y="35.38333333333333"/>
+    <g transform="translate(52.78102602061156,34.68333333333334)">
+        <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="54.266666666666666" y="35.483333333333334">P20</text>
+    <g transform="translate(56.381026020611564,34.68333333333334)">
+        <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="57.56666666666666" y="35.483333333333334">D13</text>
+    <g transform="translate(59.381026020611564,34.68333333333334)">
+        <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="60.86666666666667" y="35.483333333333334">SCL1</text>
+    <g transform="translate(62.981026020611566,34.68333333333334)">
+        <rect fill="#ffe680" 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="64.46666666666667" y="35.483333333333334">TCK</text>
+    <g transform="translate(66.58102602061156,34.68333333333334)">
+        <rect fill="#f68a1e" 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="68.06666666666666" y="35.483333333333334">FSCK</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="49.36666666666666" y="33.38333333333333"/>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="49.36666666666666" y="31.383333333333333"/>
+</svg>

boards/cb3s/pins_arduino.h

@@ -0,0 +1 @@
+#include "variant.h"

boards/cb3s/variant.cpp

@@ -0,0 +1,40 @@
+/* This file was auto-generated from cb3s.json using boardgen */
+
+#include <Arduino.h>
+
+extern "C" {
+
+// clang-format off
+PinInfo pinTable[PINS_COUNT] = {
+	// D0: P23, ADC3, TDO, FSO
+	{GPIO23, PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_JTAG,           PIN_NONE, 0},
+	// D1: P14, SD_CLK, SCK
+	{GPIO14, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D2: P26, PWM5, IRDA
+	{GPIO26, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D3: P24, PWM4
+	{GPIO24, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D4: P6, PWM0
+	{GPIO6,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D5: P9, PWM3
+	{GPIO9,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D6: P0, UART2_TX, I2C2_SCL
+	{GPIO0,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART,           PIN_NONE, 0},
+	// D7: P21, I2C1_SDA, TMS, MCLK, ^FCS
+	{GPIO21, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_I2S | PIN_JTAG, PIN_NONE, 0},
+	// D8: P8, PWM2
+	{GPIO8,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D9: P7, PWM1
+	{GPIO7,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D10: P10, UART1_RX
+	{GPIO10, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D11: P11, UART1_TX
+	{GPIO11, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D12: P22, TDI, FSI
+	{GPIO22, PIN_GPIO | PIN_IRQ | PIN_JTAG,                     PIN_NONE, 0},
+	// D13: P20, I2C1_SCL, TCK, FSCK
+	{GPIO20, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_JTAG,           PIN_NONE, 0},
+};
+// clang-format on
+
+} // extern "C"

boards/cb3s/variant.h

@@ -0,0 +1,69 @@
+/* This file was auto-generated from cb3s.json using boardgen */
+
+#pragma once
+
+#include <WVariant.h>
+
+// clang-format off
+
+// Pins
+// ----
+#define PINS_COUNT         14
+#define NUM_DIGITAL_PINS   14
+#define NUM_ANALOG_INPUTS  1
+#define NUM_ANALOG_OUTPUTS 0
+
+// Analog pins
+// -----------
+#define PIN_A0 0u     // GPIO23
+#define PIN_A0 0u     // GPIO23
+#define A0     PIN_A0
+#define A0     PIN_A0
+
+// SPI Interfaces
+// --------------
+#define SPI_INTERFACES_COUNT 0
+
+// Wire Interfaces
+// ---------------
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE1_SCL         13u // GPIO20
+#define PIN_WIRE1_SDA_0       7u  // GPIO21
+#define PIN_WIRE1_SDA_1       7u  // GPIO21
+
+// Serial ports
+// ------------
+#define SERIAL_INTERFACES_COUNT 1
+#define PIN_SERIAL1_RX          10u // GPIO10
+#define PIN_SERIAL1_TX          11u // GPIO11
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC3 0u  // GPIO23
+#define PIN_FUNCTION_P0   6u  // GPIO0
+#define PIN_FUNCTION_P6   4u  // GPIO6
+#define PIN_FUNCTION_P7   9u  // GPIO7
+#define PIN_FUNCTION_P8   8u  // GPIO8
+#define PIN_FUNCTION_P9   5u  // GPIO9
+#define PIN_FUNCTION_P10  10u // GPIO10
+#define PIN_FUNCTION_P11  11u // GPIO11
+#define PIN_FUNCTION_P14  1u  // GPIO14
+#define PIN_FUNCTION_P20  13u // GPIO20
+#define PIN_FUNCTION_P21  7u  // GPIO21
+#define PIN_FUNCTION_P22  12u // GPIO22
+#define PIN_FUNCTION_P23  0u  // GPIO23
+#define PIN_FUNCTION_P24  3u  // GPIO24
+#define PIN_FUNCTION_P26  2u  // GPIO26
+#define PIN_FUNCTION_PWM0 4u  // GPIO6
+#define PIN_FUNCTION_PWM1 9u  // GPIO7
+#define PIN_FUNCTION_PWM2 8u  // GPIO8
+#define PIN_FUNCTION_PWM3 5u  // GPIO9
+#define PIN_FUNCTION_PWM4 3u  // GPIO24
+#define PIN_FUNCTION_PWM5 2u  // GPIO26
+#define PIN_FUNCTION_RX1  10u // GPIO10
+#define PIN_FUNCTION_SCK  1u  // GPIO14
+#define PIN_FUNCTION_SCL1 13u // GPIO20
+#define PIN_FUNCTION_SCL2 6u  // GPIO0
+#define PIN_FUNCTION_SDA1 7u  // GPIO21
+#define PIN_FUNCTION_TX1  11u // GPIO11
+#define PIN_FUNCTION_TX2  6u  // GPIO0

boards/cb3se.json

@@ -0,0 +1,22 @@
+{
+	"_base": [
+		"beken-72xx",
+		"beken-7231n",
+		"beken-7231n-tuya",
+		"ic/bk7231-qfn32",
+		"pcb/cb3se"
+	],
+	"build": {
+		"mcu": "bk7231n",
+		"variant": "cb3se"
+	},
+	"name": "CB3SE Wi-Fi Module",
+	"url": "https://developer.tuya.com/en/docs/iot/CB3SE-Module-Datasheet?id=Kanoiluul7nl2",
+	"vendor": "Tuya Inc.",
+	"doc": {
+		"fccid": "2ANDL-CB3SE"
+	},
+	"pcb": {
+		"symbol": "CB3SE"
+	}
+}

boards/cb3se/README.md

@@ -0,0 +1,91 @@
+# CB3SE Wi-Fi Module
+
+*by Tuya Inc.*
+
+[Product page](https://developer.tuya.com/en/docs/iot/CB3SE-Module-Datasheet?id=Kanoiluul7nl2)
+
+- [General info](../../docs/platform/beken-72xx/README.md)
+- [Flashing guide](../../docs/platform/beken-72xx/flashing.md)
+
+Parameter    | Value
+-------------|--------------------------------------------
+Board code   | `cb3se`
+MCU          | BK7231N
+Manufacturer | Beken
+Series       | BK72XX
+Frequency    | 120 MHz
+Flash size   | 2 MiB
+RAM size     | 256 KiB
+Voltage      | 3.0V - 3.6V
+I/O          | 17x GPIO, 6x PWM, 2x UART, 1x ADC
+Wi-Fi        | 802.11 b/g/n
+Bluetooth    | BLE v5.1
+FCC ID       | [2ANDL-CB3SE](https://fccid.io/2ANDL-CB3SE)
+
+## Usage
+
+**Board code:** `cb3se`
+
+In `platformio.ini`:
+
+```ini
+[env:cb3se]
+platform = libretuya
+board = cb3se
+framework = arduino
+```
+
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: cb3se
+  framework:
+    version: dev
+```
+
+## Pinout
+
+![Pinout](pinout_cb3se.svg)
+
+## Arduino Core pin mapping
+
+No. | Pin       | UART     | I²C      | SPI  | PWM  | Other
+----|-----------|----------|----------|------|------|------
+D0  | P23       |          |          |      |      | TDO
+D1  | P14       |          |          | SCK  |      |
+D2  | P26       |          |          |      | PWM5 |
+D3  | P24       |          |          |      | PWM4 |
+D4  | P6        |          |          |      | PWM0 |
+D5  | P9        |          |          |      | PWM3 |
+D6  | P0        | UART2_TX | I2C2_SCL |      |      |
+D7  | P1        | UART2_RX | I2C2_SDA |      |      |
+D8  | P8        |          |          |      | PWM2 |
+D9  | P7        |          |          |      | PWM1 |
+D10 | P10       | UART1_RX |          |      |      |
+D11 | P11       | UART1_TX |          |      |      |
+D12 | P15       |          |          | CS   |      |
+D13 | P22       |          |          |      |      | TDI
+D14 | P20       |          | I2C1_SCL |      |      | TCK
+D15 | P17       |          |          | MISO |      |
+D16 | P16       |          |          | MOSI |      |
+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
+Calibration     | 0x1D0000 | 4 KiB / 0x1000     | 0x1D1000
+Network Data    | 0x1D1000 | 4 KiB / 0x1000     | 0x1D2000
+TLV Store       | 0x1D2000 | 4 KiB / 0x1000     | 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.

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+    <g transform="translate(21.131026020611557,20.933333333333334)">
+        <rect fill="#aeafc1" 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="22.61666666666666" y="21.733333333333334">IRDA</text>
+    <g transform="translate(17.53102602061156,20.933333333333334)">
+        <rect fill="#afa35e" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="19.016666666666662" y="21.733333333333334">PWM5</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="31.51666666666666" y="23.633333333333333"/>
+    <g transform="translate(27.731026020611555,22.933333333333334)">
+        <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="29.216666666666658" y="23.733333333333334">P24</text>
+    <g transform="translate(24.73102602061156,22.933333333333334)">
+        <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="25.91666666666666" y="23.733333333333334">D3</text>
+    <g transform="translate(21.131026020611557,22.933333333333334)">
+        <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="22.61666666666666" y="23.733333333333334">PWM4</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="31.51666666666666" y="25.633333333333333"/>
+    <g transform="translate(27.731026020611555,24.933333333333334)">
+        <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="29.216666666666658" y="25.733333333333334">P6</text>
+    <g transform="translate(24.73102602061156,24.933333333333334)">
+        <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="25.91666666666666" y="25.733333333333334">D4</text>
+    <g transform="translate(21.131026020611557,24.933333333333334)">
+        <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="22.61666666666666" y="25.733333333333334">PWM0</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="31.51666666666666" y="27.633333333333333"/>
+    <g transform="translate(27.731026020611555,26.933333333333334)">
+        <rect fill="#cd3c24" 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="29.216666666666658" y="27.733333333333334">3V3</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="27.633333333333333"/>
+    <g transform="translate(54.53102602061156,26.933333333333334)">
+        <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="56.016666666666666" y="27.733333333333334">GND</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="25.633333333333333"/>
+    <g transform="translate(54.53102602061156,24.933333333333334)">
+        <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="56.016666666666666" y="25.733333333333334">P9</text>
+    <g transform="translate(58.131026020611564,24.933333333333334)">
+        <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="59.31666666666666" y="25.733333333333334">D5</text>
+    <g transform="translate(61.131026020611564,24.933333333333334)">
+        <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="62.61666666666667" y="25.733333333333334">PWM3</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="23.633333333333333"/>
+    <g transform="translate(54.53102602061156,22.933333333333334)">
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="56.016666666666666" y="23.733333333333334">P0</text>
+    <g transform="translate(58.131026020611564,22.933333333333334)">
+        <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="59.31666666666666" y="23.733333333333334">D6</text>
+    <g transform="translate(61.131026020611564,22.933333333333334)">
+        <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="62.61666666666667" y="23.733333333333334">TX2</text>
+    <g transform="translate(64.73102602061155,22.933333333333334)">
+        <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="66.21666666666665" y="23.733333333333334">SCL2</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="21.633333333333333"/>
+    <g transform="translate(54.53102602061156,20.933333333333334)">
+        <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="56.016666666666666" y="21.733333333333334">P1</text>
+    <g transform="translate(58.131026020611564,20.933333333333334)">
+        <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="59.31666666666666" y="21.733333333333334">D7</text>
+    <g transform="translate(61.131026020611564,20.933333333333334)">
+        <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="62.61666666666667" y="21.733333333333334">RX2</text>
+    <g transform="translate(64.73102602061155,20.933333333333334)">
+        <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="66.21666666666665" y="21.733333333333334">SDA2</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="19.63333333333333"/>
+    <g transform="translate(54.53102602061156,18.93333333333333)">
+        <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="56.016666666666666" y="19.73333333333333">P8</text>
+    <g transform="translate(58.131026020611564,18.93333333333333)">
+        <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="59.31666666666666" y="19.73333333333333">D8</text>
+    <g transform="translate(61.131026020611564,18.93333333333333)">
+        <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="62.61666666666667" y="19.73333333333333">PWM2</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="17.63333333333333"/>
+    <g transform="translate(54.53102602061156,16.93333333333333)">
+        <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="56.016666666666666" y="17.73333333333333">P7</text>
+    <g transform="translate(58.131026020611564,16.93333333333333)">
+        <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="59.31666666666666" y="17.73333333333333">D9</text>
+    <g transform="translate(61.131026020611564,16.93333333333333)">
+        <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="62.61666666666667" y="17.73333333333333">PWM1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="15.633333333333331"/>
+    <g transform="translate(54.53102602061156,14.93333333333333)">
+        <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="56.016666666666666" y="15.73333333333333">P10</text>
+    <g transform="translate(58.131026020611564,14.93333333333333)">
+        <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="59.31666666666666" y="15.73333333333333">D10</text>
+    <g transform="translate(61.131026020611564,14.93333333333333)">
+        <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="62.61666666666667" y="15.73333333333333">RX1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="51.11666666666666" y="13.633333333333331"/>
+    <g transform="translate(54.53102602061156,12.93333333333333)">
+        <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="56.016666666666666" y="13.73333333333333">P11</text>
+    <g transform="translate(58.131026020611564,12.93333333333333)">
+        <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="59.31666666666666" y="13.73333333333333">D11</text>
+    <g transform="translate(61.131026020611564,12.93333333333333)">
+        <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="62.61666666666667" y="13.73333333333333">TX1</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="34.76666666666666" y="31.383333333333333"/>
+    <g transform="translate(30.981026020611555,30.683333333333334)">
+        <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="32.46666666666666" y="31.483333333333334">P15</text>
+    <g transform="translate(27.98102602061156,30.683333333333334)">
+        <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="29.16666666666666" y="31.483333333333334">D12</text>
+    <g transform="translate(24.381026020611557,30.683333333333334)">
+        <rect fill="#e9ba33" 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="25.86666666666666" y="31.483333333333334">CS</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="34.76666666666666" y="33.38333333333333"/>
+    <g transform="translate(30.981026020611555,32.68333333333334)">
+        <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="32.46666666666666" y="33.483333333333334">P22</text>
+    <g transform="translate(27.98102602061156,32.68333333333334)">
+        <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="29.16666666666666" y="33.483333333333334">D13</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="34.76666666666666" y="35.38333333333333"/>
+    <g transform="translate(30.981026020611555,34.68333333333334)">
+        <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="32.46666666666666" y="35.483333333333334">GND</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="47.86666666666666" y="35.38333333333333"/>
+    <g transform="translate(51.28102602061156,34.68333333333334)">
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="52.766666666666666" y="35.483333333333334">P20</text>
+    <g transform="translate(54.881026020611564,34.68333333333334)">
+        <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="56.06666666666666" y="35.483333333333334">D14</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="47.86666666666666" y="33.38333333333333"/>
+    <g transform="translate(51.28102602061156,32.68333333333334)">
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="52.766666666666666" y="33.483333333333334">P17</text>
+    <g transform="translate(54.881026020611564,32.68333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="56.06666666666666" y="33.483333333333334">D15</text>
+    <g transform="translate(57.881026020611564,32.68333333333334)">
+        <rect fill="#e9ba33" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="59.36666666666667" y="33.483333333333334">MISO</text>
+    <rect fill="#4e4c4c" height="0.2" width="2.6" x="47.86666666666666" y="31.383333333333333"/>
+    <g transform="translate(51.28102602061156,30.683333333333334)">
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="52.766666666666666" y="31.483333333333334">P16</text>
+    <g transform="translate(54.881026020611564,30.683333333333334)">
+        <rect fill="#99188d" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="2.8" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="white" font-family="Consolas" font-size="1.2" text-anchor="middle" x="56.06666666666666" y="31.483333333333334">D16</text>
+    <g transform="translate(57.881026020611564,30.683333333333334)">
+        <rect fill="#e9ba33" height="1.6" rx="0.3" ry="0.3" transform="skewX(-15)" width="3.4" x="0" y="0"/>
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+    <text dominant-baseline="central" fill="#423F42" font-family="Consolas" font-size="1.2" text-anchor="middle" x="59.36666666666667" y="31.483333333333334">MOSI</text>
+</svg>

boards/cb3se/pins_arduino.h

@@ -0,0 +1 @@
+#include "variant.h"

boards/cb3se/variant.cpp

@@ -0,0 +1,46 @@
+/* This file was auto-generated from cb3se.json using boardgen */
+
+#include <Arduino.h>
+
+extern "C" {
+
+// clang-format off
+PinInfo pinTable[PINS_COUNT] = {
+	// D0: P23, ADC3, TDO, FSO
+	{GPIO23, PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_JTAG, PIN_NONE, 0},
+	// D1: P14, SD_CLK, SCK
+	{GPIO14, PIN_GPIO | PIN_IRQ | PIN_SPI,            PIN_NONE, 0},
+	// D2: P26, PWM5, IRDA
+	{GPIO26, PIN_GPIO | PIN_IRQ | PIN_PWM,            PIN_NONE, 0},
+	// D3: P24, PWM4
+	{GPIO24, PIN_GPIO | PIN_IRQ | PIN_PWM,            PIN_NONE, 0},
+	// D4: P6, PWM0
+	{GPIO6,  PIN_GPIO | PIN_IRQ | PIN_PWM,            PIN_NONE, 0},
+	// D5: P9, PWM3
+	{GPIO9,  PIN_GPIO | PIN_IRQ | PIN_PWM,            PIN_NONE, 0},
+	// D6: P0, UART2_TX, I2C2_SCL
+	{GPIO0,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART, PIN_NONE, 0},
+	// D7: P1, UART2_RX, I2C2_SDA
+	{GPIO1,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART, PIN_NONE, 0},
+	// D8: P8, PWM2
+	{GPIO8,  PIN_GPIO | PIN_IRQ | PIN_PWM,            PIN_NONE, 0},
+	// D9: P7, PWM1
+	{GPIO7,  PIN_GPIO | PIN_IRQ | PIN_PWM,            PIN_NONE, 0},
+	// D10: P10, UART1_RX
+	{GPIO10, PIN_GPIO | PIN_IRQ | PIN_UART,           PIN_NONE, 0},
+	// D11: P11, UART1_TX
+	{GPIO11, PIN_GPIO | PIN_IRQ | PIN_UART,           PIN_NONE, 0},
+	// D12: P15, SD_CMD, CS
+	{GPIO15, PIN_GPIO | PIN_IRQ | PIN_SPI,            PIN_NONE, 0},
+	// D13: P22, TDI, FSI
+	{GPIO22, PIN_GPIO | PIN_IRQ | PIN_JTAG,           PIN_NONE, 0},
+	// D14: P20, I2C1_SCL, TCK, FSCK
+	{GPIO20, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_JTAG, PIN_NONE, 0},
+	// D15: P17, SD_D1, MISO
+	{GPIO17, PIN_GPIO | PIN_IRQ | PIN_SPI,            PIN_NONE, 0},
+	// D16: P16, SD_D0, MOSI
+	{GPIO16, PIN_GPIO | PIN_IRQ | PIN_SPI,            PIN_NONE, 0},
+};
+// clang-format on
+
+} // extern "C"

boards/cb3se/variant.h

@@ -0,0 +1,75 @@
+/* This file was auto-generated from cb3se.json using boardgen */
+
+#pragma once
+
+#include <WVariant.h>
+
+// clang-format off
+
+// Pins
+// ----
+#define PINS_COUNT         17
+#define NUM_DIGITAL_PINS   17
+#define NUM_ANALOG_INPUTS  1
+#define NUM_ANALOG_OUTPUTS 0
+
+// Analog pins
+// -----------
+#define PIN_A0 0u     // GPIO23
+#define A0     PIN_A0
+
+// SPI Interfaces
+// --------------
+#define SPI_INTERFACES_COUNT 0
+
+// Wire Interfaces
+// ---------------
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE2_SCL         6u // GPIO0
+#define PIN_WIRE2_SDA         7u // GPIO1
+
+// Serial ports
+// ------------
+#define SERIAL_INTERFACES_COUNT 2
+#define PIN_SERIAL1_RX          10u // GPIO10
+#define PIN_SERIAL1_TX          11u // GPIO11
+#define PIN_SERIAL2_RX          7u  // GPIO1
+#define PIN_SERIAL2_TX          6u  // GPIO0
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC3 0u  // GPIO23
+#define PIN_FUNCTION_CS   12u // GPIO15
+#define PIN_FUNCTION_MISO 15u // GPIO17
+#define PIN_FUNCTION_MOSI 16u // GPIO16
+#define PIN_FUNCTION_P0   6u  // GPIO0
+#define PIN_FUNCTION_P1   7u  // GPIO1
+#define PIN_FUNCTION_P6   4u  // GPIO6
+#define PIN_FUNCTION_P7   9u  // GPIO7
+#define PIN_FUNCTION_P8   8u  // GPIO8
+#define PIN_FUNCTION_P9   5u  // GPIO9
+#define PIN_FUNCTION_P10  10u // GPIO10
+#define PIN_FUNCTION_P11  11u // GPIO11
+#define PIN_FUNCTION_P14  1u  // GPIO14
+#define PIN_FUNCTION_P15  12u // GPIO15
+#define PIN_FUNCTION_P16  16u // GPIO16
+#define PIN_FUNCTION_P17  15u // GPIO17
+#define PIN_FUNCTION_P20  14u // GPIO20
+#define PIN_FUNCTION_P22  13u // GPIO22
+#define PIN_FUNCTION_P23  0u  // GPIO23
+#define PIN_FUNCTION_P24  3u  // GPIO24
+#define PIN_FUNCTION_P26  2u  // GPIO26
+#define PIN_FUNCTION_PWM0 4u  // GPIO6
+#define PIN_FUNCTION_PWM1 9u  // GPIO7
+#define PIN_FUNCTION_PWM2 8u  // GPIO8
+#define PIN_FUNCTION_PWM3 5u  // GPIO9
+#define PIN_FUNCTION_PWM4 3u  // GPIO24
+#define PIN_FUNCTION_PWM5 2u  // GPIO26
+#define PIN_FUNCTION_RX1  10u // GPIO10
+#define PIN_FUNCTION_RX2  7u  // GPIO1
+#define PIN_FUNCTION_SCK  1u  // GPIO14
+#define PIN_FUNCTION_SCL1 14u // GPIO20
+#define PIN_FUNCTION_SCL2 6u  // GPIO0
+#define PIN_FUNCTION_SDA2 7u  // GPIO1
+#define PIN_FUNCTION_TX1  11u // GPIO11
+#define PIN_FUNCTION_TX2  6u  // GPIO0

boards/generic-bk7231n-qfn32-tuya.json

@@ -4,7 +4,7 @@
 		"beken-72xx",
 		"beken-7231n",
 		"beken-7231n-tuya",
-		"pcb/ic-bk7231-qfn32"
+		"ic/bk7231-qfn32"
 	],
 	"build": {
 		"mcu": "bk7231n",

boards/generic-bk7231n-qfn32-tuya/README.md

@@ -6,7 +6,6 @@
 
 - [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
 -------------|----------------------------------
@@ -35,6 +34,15 @@ board = generic-bk7231n-qfn32-tuya
 framework = arduino
 ```
 
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: generic-bk7231n-qfn32-tuya
+  framework:
+    version: dev
+```
+
 ## Arduino Core pin mapping
 
 No. | Pin       | UART     | I²C      | SPI  | PWM  | Other
@@ -71,8 +79,9 @@ 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
+Calibration     | 0x1D0000 | 4 KiB / 0x1000     | 0x1D1000
+Network Data    | 0x1D1000 | 4 KiB / 0x1000     | 0x1D2000
+TLV Store       | 0x1D2000 | 4 KiB / 0x1000     | 0x1D3000
 Key-Value Store | 0x1D3000 | 32 KiB / 0x8000    | 0x1DB000
 User Data       | 0x1DB000 | 148 KiB / 0x25000  | 0x200000
 

boards/generic-bk7231n-qfn32-tuya/variant.h

@@ -37,3 +37,44 @@
 #define PIN_SERIAL1_TX          7u // GPIO11
 #define PIN_SERIAL2_RX          1u // GPIO1
 #define PIN_SERIAL2_TX          0u // GPIO0
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC3 15u // GPIO23
+#define PIN_FUNCTION_CS   9u  // GPIO15
+#define PIN_FUNCTION_MISO 11u // GPIO17
+#define PIN_FUNCTION_MOSI 10u // GPIO16
+#define PIN_FUNCTION_P0   0u  // GPIO0
+#define PIN_FUNCTION_P1   1u  // GPIO1
+#define PIN_FUNCTION_P6   2u  // GPIO6
+#define PIN_FUNCTION_P7   3u  // GPIO7
+#define PIN_FUNCTION_P8   4u  // GPIO8
+#define PIN_FUNCTION_P9   5u  // GPIO9
+#define PIN_FUNCTION_P10  6u  // GPIO10
+#define PIN_FUNCTION_P11  7u  // GPIO11
+#define PIN_FUNCTION_P14  8u  // GPIO14
+#define PIN_FUNCTION_P15  9u  // GPIO15
+#define PIN_FUNCTION_P16  10u // GPIO16
+#define PIN_FUNCTION_P17  11u // GPIO17
+#define PIN_FUNCTION_P20  12u // GPIO20
+#define PIN_FUNCTION_P21  13u // GPIO21
+#define PIN_FUNCTION_P22  14u // GPIO22
+#define PIN_FUNCTION_P23  15u // GPIO23
+#define PIN_FUNCTION_P24  16u // GPIO24
+#define PIN_FUNCTION_P26  17u // GPIO26
+#define PIN_FUNCTION_P28  18u // GPIO28
+#define PIN_FUNCTION_PWM0 2u  // GPIO6
+#define PIN_FUNCTION_PWM1 3u  // GPIO7
+#define PIN_FUNCTION_PWM2 4u  // GPIO8
+#define PIN_FUNCTION_PWM3 5u  // GPIO9
+#define PIN_FUNCTION_PWM4 16u // GPIO24
+#define PIN_FUNCTION_PWM5 17u // GPIO26
+#define PIN_FUNCTION_RX1  6u  // GPIO10
+#define PIN_FUNCTION_RX2  1u  // GPIO1
+#define PIN_FUNCTION_SCK  8u  // GPIO14
+#define PIN_FUNCTION_SCL1 12u // GPIO20
+#define PIN_FUNCTION_SCL2 0u  // GPIO0
+#define PIN_FUNCTION_SDA1 13u // GPIO21
+#define PIN_FUNCTION_SDA2 1u  // GPIO1
+#define PIN_FUNCTION_TX1  7u  // GPIO11
+#define PIN_FUNCTION_TX2  0u  // GPIO0

boards/generic-bk7231t-qfn32-tuya.json

@@ -2,9 +2,9 @@
 	"_base": [
 		"generic",
 		"beken-72xx",
-		"beken-7231t",
+		"beken-7231u",
 		"beken-7231t-tuya",
-		"pcb/ic-bk7231-qfn32"
+		"ic/bk7231-qfn32"
 	],
 	"build": {
 		"mcu": "bk7231t",

boards/generic-bk7231t-qfn32-tuya/README.md

@@ -6,7 +6,6 @@
 
 - [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
 -------------|----------------------------------
@@ -35,6 +34,15 @@ board = generic-bk7231t-qfn32-tuya
 framework = arduino
 ```
 
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: generic-bk7231t-qfn32-tuya
+  framework:
+    version: dev
+```
+
 ## Arduino Core pin mapping
 
 No. | Pin       | UART     | I²C      | SPI  | PWM  | Other
@@ -72,8 +80,9 @@ Bootloader      | 0x000000 | 68 KiB / 0x11000   | 0x011000
 App Image       | 0x011000 | 1.1 MiB / 0x121000 | 0x132000
 OTA Image       | 0x132000 | 664 KiB / 0xA6000  | 0x1D8000
 Key-Value Store | 0x1D8000 | 32 KiB / 0x8000    | 0x1E0000
-TLV Store       | 0x1E0000 | 4 KiB / 0x1000     | 0x1E1000
-Network Data    | 0x1E1000 | 8 KiB / 0x2000     | 0x1E3000
+Calibration     | 0x1E0000 | 4 KiB / 0x1000     | 0x1E1000
+TLV Store       | 0x1E1000 | 4 KiB / 0x1000     | 0x1E2000
+Network Data    | 0x1E2000 | 4 KiB / 0x1000     | 0x1E3000
 User Data       | 0x1E3000 | 116 KiB / 0x1D000  | 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.

boards/generic-bk7231t-qfn32-tuya/variant.h

@@ -37,3 +37,44 @@
 #define PIN_SERIAL1_TX          7u // GPIO11
 #define PIN_SERIAL2_RX          1u // GPIO1
 #define PIN_SERIAL2_TX          0u // GPIO0
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC3 15u // GPIO23
+#define PIN_FUNCTION_CS   9u  // GPIO15
+#define PIN_FUNCTION_MISO 11u // GPIO17
+#define PIN_FUNCTION_MOSI 10u // GPIO16
+#define PIN_FUNCTION_P0   0u  // GPIO0
+#define PIN_FUNCTION_P1   1u  // GPIO1
+#define PIN_FUNCTION_P6   2u  // GPIO6
+#define PIN_FUNCTION_P7   3u  // GPIO7
+#define PIN_FUNCTION_P8   4u  // GPIO8
+#define PIN_FUNCTION_P9   5u  // GPIO9
+#define PIN_FUNCTION_P10  6u  // GPIO10
+#define PIN_FUNCTION_P11  7u  // GPIO11
+#define PIN_FUNCTION_P14  8u  // GPIO14
+#define PIN_FUNCTION_P15  9u  // GPIO15
+#define PIN_FUNCTION_P16  10u // GPIO16
+#define PIN_FUNCTION_P17  11u // GPIO17
+#define PIN_FUNCTION_P20  12u // GPIO20
+#define PIN_FUNCTION_P21  13u // GPIO21
+#define PIN_FUNCTION_P22  14u // GPIO22
+#define PIN_FUNCTION_P23  15u // GPIO23
+#define PIN_FUNCTION_P24  16u // GPIO24
+#define PIN_FUNCTION_P26  17u // GPIO26
+#define PIN_FUNCTION_P28  18u // GPIO28
+#define PIN_FUNCTION_PWM0 2u  // GPIO6
+#define PIN_FUNCTION_PWM1 3u  // GPIO7
+#define PIN_FUNCTION_PWM2 4u  // GPIO8
+#define PIN_FUNCTION_PWM3 5u  // GPIO9
+#define PIN_FUNCTION_PWM4 16u // GPIO24
+#define PIN_FUNCTION_PWM5 17u // GPIO26
+#define PIN_FUNCTION_RX1  6u  // GPIO10
+#define PIN_FUNCTION_RX2  1u  // GPIO1
+#define PIN_FUNCTION_SCK  8u  // GPIO14
+#define PIN_FUNCTION_SCL1 12u // GPIO20
+#define PIN_FUNCTION_SCL2 0u  // GPIO0
+#define PIN_FUNCTION_SDA1 13u // GPIO21
+#define PIN_FUNCTION_SDA2 1u  // GPIO1
+#define PIN_FUNCTION_TX1  7u  // GPIO11
+#define PIN_FUNCTION_TX2  0u  // GPIO0

boards/generic-bk7252.json

@@ -0,0 +1,193 @@
+{
+	"_base": [
+		"generic",
+		"beken-72xx",
+		"beken-7252",
+		"ic/bk7252-qfn68"
+	],
+	"build": {
+		"mcu": "bk7252",
+		"variant": "generic-bk7252"
+	},
+	"name": "Generic - BK7252",
+	"symbol": "BK7252",
+	"url": "https://kuba2k2.github.io/libretuya/boards/generic-bk7252/",
+	"vendor": "Generic",
+	"pcb": {
+		"pinout": {
+			"1": {
+				"IC": 65,
+				"ARD": "D0"
+			},
+			"2": {
+				"IC": 64,
+				"ARD": "D1"
+			},
+			"3": {
+				"IC": 48,
+				"ARD": [
+					"D2",
+					"A5"
+				]
+			},
+			"4": {
+				"IC": 46,
+				"ARD": [
+					"D3",
+					"A4"
+				]
+			},
+			"5": {
+				"IC": 47,
+				"ARD": [
+					"D4",
+					"A1"
+				]
+			},
+			"6": {
+				"IC": 45,
+				"ARD": [
+					"D5",
+					"A2"
+				]
+			},
+			"7": {
+				"IC": 49,
+				"ARD": "D6"
+			},
+			"8": {
+				"IC": 50,
+				"ARD": "D7"
+			},
+			"9": {
+				"IC": 62,
+				"ARD": "D8"
+			},
+			"10": {
+				"IC": 63,
+				"ARD": "D9"
+			},
+			"11": {
+				"IC": 16,
+				"ARD": [
+					"D10",
+					"A6"
+				]
+			},
+			"12": {
+				"IC": 17,
+				"ARD": [
+					"D11",
+					"A7"
+				]
+			},
+			"13": {
+				"IC": 32,
+				"ARD": "D12"
+			},
+			"14": {
+				"IC": 34,
+				"ARD": "D13"
+			},
+			"15": {
+				"IC": 33,
+				"ARD": "D14"
+			},
+			"16": {
+				"IC": 31,
+				"ARD": "D15"
+			},
+			"17": {
+				"IC": 35,
+				"ARD": "D16"
+			},
+			"18": {
+				"IC": 30,
+				"ARD": "D17"
+			},
+			"19": {
+				"IC": 41,
+				"ARD": "D18"
+			},
+			"20": {
+				"IC": 40,
+				"ARD": "D19"
+			},
+			"21": {
+				"IC": 39,
+				"ARD": "D20"
+			},
+			"22": {
+				"IC": 38,
+				"ARD": [
+					"D21",
+					"A3"
+				]
+			},
+			"23": {
+				"IC": 36,
+				"ARD": "D22"
+			},
+			"24": {
+				"IC": 14,
+				"ARD": "D23"
+			},
+			"25": {
+				"IC": 37,
+				"ARD": "D24"
+			},
+			"26": {
+				"IC": 21,
+				"ARD": "D25"
+			},
+			"27": {
+				"IC": 13,
+				"ARD": "D26"
+			},
+			"28": {
+				"IC": 20,
+				"ARD": "D27"
+			},
+			"29": {
+				"IC": 22,
+				"ARD": "D28"
+			},
+			"30": {
+				"IC": 23,
+				"ARD": "D29"
+			},
+			"31": {
+				"IC": 19,
+				"ARD": "D30"
+			},
+			"32": {
+				"IC": 18,
+				"ARD": "D31"
+			},
+			"33": {
+				"IC": 24,
+				"ARD": "D32"
+			},
+			"34": {
+				"IC": 25,
+				"ARD": "D33"
+			},
+			"35": {
+				"IC": 26,
+				"ARD": "D34"
+			},
+			"36": {
+				"IC": 27,
+				"ARD": "D35"
+			},
+			"37": {
+				"IC": 28,
+				"ARD": "D36"
+			},
+			"38": {
+				"IC": 29,
+				"ARD": "D37"
+			}
+		}
+	}
+}

boards/generic-bk7252/README.md

@@ -0,0 +1,112 @@
+# Generic - BK7252
+
+*by Generic*
+
+[Product page](https://kuba2k2.github.io/libretuya/boards/generic-bk7252/)
+
+- [General info](../../docs/platform/beken-72xx/README.md)
+- [Flashing guide](../../docs/platform/beken-72xx/flashing.md)
+
+Parameter    | Value
+-------------|----------------------------------
+Board code   | `generic-bk7252`
+MCU          | BK7252
+Manufacturer | Beken
+Series       | BK72XX
+Frequency    | 180 MHz
+Flash size   | 4 MiB
+RAM size     | 512 KiB
+Voltage      | 3.0V - 3.6V
+I/O          | 38x GPIO, 4x PWM, 2x UART, 7x ADC
+Wi-Fi        | 802.11 b/g/n
+Bluetooth    | BLE v5.0
+
+## Usage
+
+**Board code:** `generic-bk7252`
+
+In `platformio.ini`:
+
+```ini
+[env:generic-bk7252]
+platform = libretuya
+board = generic-bk7252
+framework = arduino
+```
+
+In ESPHome YAML:
+
+```yaml
+libretuya:
+  board: generic-bk7252
+  framework:
+    version: dev
+```
+
+## Arduino Core pin mapping
+
+No. | Pin       | UART      | I²C      | SPI  | PWM  | Other
+----|-----------|-----------|----------|------|------|----------
+D0  | P0        | UART2_TX  | I2C2_SCL |      |      |
+D1  | P1        | UART2_RX  | I2C2_SDA |      |      |
+D2  | P2        |           |          |      |      |
+D3  | P3        |           |          |      |      |
+D4  | P4        |           |          |      |      |
+D5  | P5        |           |          |      |      |
+D6  | P6        |           |          |      | PWM0 |
+D7  | P7        |           |          |      | PWM1 |
+D8  | P10       | UART1_RX  |          |      |      |
+D9  | P11       | UART1_TX  |          |      |      |
+D10 | P12       | UART1_CTS |          |      |      |
+D11 | P13       | UART1_RTS |          |      |      |
+D12 | P14       |           |          | SCK  |      |
+D13 | P15       |           |          | CS   |      |
+D14 | P16       |           |          | MOSI |      |
+D15 | P17       |           |          | MISO |      |
+D16 | P18       |           |          |      |      |
+D17 | P19       |           |          |      |      |
+D18 | P20       |           | I2C1_SCL |      |      | TCK
+D19 | P21       |           | I2C1_SDA |      |      | TMS
+D20 | P22       |           |          |      |      | TDI
+D21 | P23       |           |          |      |      | TDO
+D22 | P24       |           |          |      | PWM4 |
+D23 | P25       |           |          |      |      |
+D24 | P26       |           |          |      | PWM5 |
+D25 | P27       |           |          |      |      | DVP_MCLK
+D26 | P28       |           |          |      |      |
+D27 | P29       |           |          |      |      | DVP_PCLK
+D28 | P30       |           |          |      |      | DVP_HSYNC
+D29 | P31       |           |          |      |      | DVP_VSYNC
+D30 | P32       |           |          |      |      | DVP_PD0
+D31 | P33       |           |          |      |      | DVP_PD1
+D32 | P34       |           |          |      |      | DVP_PD2
+D33 | P35       |           |          |      |      | DVP_PD3
+D34 | P36       |           |          |      |      | DVP_PD4
+D35 | P37       |           |          |      |      | DVP_PD5
+D36 | P38       |           |          |      |      | DVP_PD6
+D37 | P39       |           |          |      |      | DVP_PD7
+A1  | P4, ADC1  |           |          |      |      |
+A2  | P5, ADC2  |           |          |      |      |
+A3  | P23, ADC3 |           |          |      |      |
+A4  | P3, ADC5  |           |          |      |      |
+A5  | P2, ADC4  |           |          |      |      |
+A6  | P12, ADC6 |           |          |      |      |
+A7  | P13, ADC7 |           |          |      |      |
+
+## Flash memory map
+
+Flash size: 4 MiB / 4,194,304 B / 0x400000
+
+Hex values are in bytes.
+
+Name            | Start    | Length             | End
+----------------|----------|--------------------|---------
+Bootloader      | 0x000000 | 68 KiB / 0x11000   | 0x011000
+App Image       | 0x011000 | 1.7 MiB / 0x1BA000 | 0x1CB000
+File System     | 0x1CB000 | 1.1 MiB / 0x119000 | 0x2E4000
+Key-Value Store | 0x2E4000 | 32 KiB / 0x8000    | 0x2EC000
+OTA Image       | 0x2EC000 | 1.1 MiB / 0x112000 | 0x3FE000
+Calibration     | 0x3FE000 | 4 KiB / 0x1000     | 0x3FF000
+TLV Store       | 0x3FF000 | 4 KiB / 0x1000     | 0x400000
+
+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.

boards/generic-bk7252/pins_arduino.h

@@ -0,0 +1 @@
+#include "variant.h"

boards/generic-bk7252/variant.cpp

@@ -0,0 +1,88 @@
+/* This file was auto-generated from generic-bk7252.json using boardgen */
+
+#include <Arduino.h>
+
+extern "C" {
+
+// clang-format off
+PinInfo pinTable[PINS_COUNT] = {
+	// D0: P0, UART2_TX, I2C2_SCL
+	{GPIO0,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART,           PIN_NONE, 0},
+	// D1: P1, UART2_RX, I2C2_SDA
+	{GPIO1,  PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_UART,           PIN_NONE, 0},
+	// D2: P2, ADC4, SCK
+	{GPIO2,  PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_I2S,            PIN_NONE, 0},
+	// D3: P3, ADC5, WS
+	{GPIO3,  PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_I2S,            PIN_NONE, 0},
+	// D4: P4, ADC1, DIN
+	{GPIO4,  PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_I2S,            PIN_NONE, 0},
+	// D5: P5, ADC2, DOUT
+	{GPIO5,  PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_I2S,            PIN_NONE, 0},
+	// D6: P6, PWM0
+	{GPIO6,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D7: P7, PWM1
+	{GPIO7,  PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D8: P10, UART1_RX
+	{GPIO10, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D9: P11, UART1_TX
+	{GPIO11, PIN_GPIO | PIN_IRQ | PIN_UART,                     PIN_NONE, 0},
+	// D10: P12, ADC6, UART1_CTS
+	{GPIO12, PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_UART,           PIN_NONE, 0},
+	// D11: P13, ADC7, UART1_RTS
+	{GPIO13, PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_UART,           PIN_NONE, 0},
+	// D12: P14, SD_CLK, SCK
+	{GPIO14, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D13: P15, SD_CMD, CS
+	{GPIO15, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D14: P16, SD_D0, MOSI
+	{GPIO16, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D15: P17, SD_D1, MISO
+	{GPIO17, PIN_GPIO | PIN_IRQ | PIN_SPI,                      PIN_NONE, 0},
+	// D16: P18, SD_D2
+	{GPIO18, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D17: P19, SD_D1
+	{GPIO19, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D18: P20, I2C1_SCL, TCK, FSCK
+	{GPIO20, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_JTAG,           PIN_NONE, 0},
+	// D19: P21, I2C1_SDA, TMS, MCLK, ^FCS
+	{GPIO21, PIN_GPIO | PIN_IRQ | PIN_I2C | PIN_I2S | PIN_JTAG, PIN_NONE, 0},
+	// D20: P22, TDI, FSI
+	{GPIO22, PIN_GPIO | PIN_IRQ | PIN_JTAG,                     PIN_NONE, 0},
+	// D21: P23, ADC3, TDO, FSO
+	{GPIO23, PIN_GPIO | PIN_IRQ | PIN_ADC | PIN_JTAG,           PIN_NONE, 0},
+	// D22: P24, PWM4
+	{GPIO24, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D23: P25, DP
+	{GPIO25, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D24: P26, PWM5, IRDA
+	{GPIO26, PIN_GPIO | PIN_IRQ | PIN_PWM,                      PIN_NONE, 0},
+	// D25: P27, DVP_MCLK
+	{GPIO27, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D26: P28, DN
+	{GPIO28, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D27: P29, DVP_PCLK
+	{GPIO29, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D28: P30, DVP_HSYNC
+	{GPIO30, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D29: P31, DVP_VSYNC
+	{GPIO31, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D30: P32, DVP_PD0
+	{GPIO32, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D31: P33, DVP_PD1
+	{GPIO33, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D32: P34, DVP_PD2
+	{GPIO34, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D33: P35, DVP_PD3
+	{GPIO35, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D34: P36, DVP_PD4
+	{GPIO36, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D35: P37, DVP_PD5
+	{GPIO37, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D36: P38, DVP_PD6
+	{GPIO38, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+	// D37: P39, DVP_PD7
+	{GPIO39, PIN_GPIO | PIN_IRQ,                                PIN_NONE, 0},
+};
+// clang-format on
+
+} // extern "C"

boards/generic-bk7252/variant.h

@@ -0,0 +1,119 @@
+/* This file was auto-generated from generic-bk7252.json using boardgen */
+
+#pragma once
+
+#include <WVariant.h>
+
+// clang-format off
+
+// Pins
+// ----
+#define PINS_COUNT         38
+#define NUM_DIGITAL_PINS   38
+#define NUM_ANALOG_INPUTS  7
+#define NUM_ANALOG_OUTPUTS 0
+
+// Analog pins
+// -----------
+#define PIN_A5 2u     // GPIO2
+#define PIN_A4 3u     // GPIO3
+#define PIN_A1 4u     // GPIO4
+#define PIN_A2 5u     // GPIO5
+#define PIN_A6 10u    // GPIO12
+#define PIN_A7 11u    // GPIO13
+#define PIN_A3 21u    // GPIO23
+#define A5     PIN_A5
+#define A4     PIN_A4
+#define A1     PIN_A1
+#define A2     PIN_A2
+#define A6     PIN_A6
+#define A7     PIN_A7
+#define A3     PIN_A3
+
+// SPI Interfaces
+// --------------
+#define SPI_INTERFACES_COUNT 0
+
+// Wire Interfaces
+// ---------------
+#define WIRE_INTERFACES_COUNT 2
+#define PIN_WIRE1_SCL         18u // GPIO20
+#define PIN_WIRE1_SDA         19u // GPIO21
+#define PIN_WIRE2_SCL         0u  // GPIO0
+#define PIN_WIRE2_SDA         1u  // GPIO1
+
+// Serial ports
+// ------------
+#define SERIAL_INTERFACES_COUNT 2
+#define PIN_SERIAL1_CTS         10u // GPIO12
+#define PIN_SERIAL1_RTS         11u // GPIO13
+#define PIN_SERIAL1_RX          8u  // GPIO10
+#define PIN_SERIAL1_TX          9u  // GPIO11
+#define PIN_SERIAL2_RX          1u  // GPIO1
+#define PIN_SERIAL2_TX          0u  // GPIO0
+
+// Pin function macros
+// -------------------
+#define PIN_FUNCTION_ADC1 4u  // GPIO4
+#define PIN_FUNCTION_ADC2 5u  // GPIO5
+#define PIN_FUNCTION_ADC3 21u // GPIO23
+#define PIN_FUNCTION_ADC4 2u  // GPIO2
+#define PIN_FUNCTION_ADC5 3u  // GPIO3
+#define PIN_FUNCTION_ADC6 10u // GPIO12
+#define PIN_FUNCTION_ADC7 11u // GPIO13
+#define PIN_FUNCTION_CS   13u // GPIO15
+#define PIN_FUNCTION_CTS1 10u // GPIO12
+#define PIN_FUNCTION_MISO 15u // GPIO17
+#define PIN_FUNCTION_MOSI 14u // GPIO16
+#define PIN_FUNCTION_P0   0u  // GPIO0
+#define PIN_FUNCTION_P1   1u  // GPIO1
+#define PIN_FUNCTION_P2   2u  // GPIO2
+#define PIN_FUNCTION_P3   3u  // GPIO3
+#define PIN_FUNCTION_P4   4u  // GPIO4
+#define PIN_FUNCTION_P5   5u  // GPIO5
+#define PIN_FUNCTION_P6   6u  // GPIO6
+#define PIN_FUNCTION_P7   7u  // GPIO7
+#define PIN_FUNCTION_P10  8u  // GPIO10
+#define PIN_FUNCTION_P11  9u  // GPIO11
+#define PIN_FUNCTION_P12  10u // GPIO12
+#define PIN_FUNCTION_P13  11u // GPIO13
+#define PIN_FUNCTION_P14  12u // GPIO14
+#define PIN_FUNCTION_P15  13u // GPIO15
+#define PIN_FUNCTION_P16  14u // GPIO16
+#define PIN_FUNCTION_P17  15u // GPIO17
+#define PIN_FUNCTION_P18  16u // GPIO18
+#define PIN_FUNCTION_P19  17u // GPIO19
+#define PIN_FUNCTION_P20  18u // GPIO20
+#define PIN_FUNCTION_P21  19u // GPIO21
+#define PIN_FUNCTION_P22  20u // GPIO22
+#define PIN_FUNCTION_P23  21u // GPIO23
+#define PIN_FUNCTION_P24  22u // GPIO24
+#define PIN_FUNCTION_P25  23u // GPIO25
+#define PIN_FUNCTION_P26  24u // GPIO26
+#define PIN_FUNCTION_P27  25u // GPIO27
+#define PIN_FUNCTION_P28  26u // GPIO28
+#define PIN_FUNCTION_P29  27u // GPIO29
+#define PIN_FUNCTION_P30  28u // GPIO30
+#define PIN_FUNCTION_P31  29u // GPIO31
+#define PIN_FUNCTION_P32  30u // GPIO32
+#define PIN_FUNCTION_P33  31u // GPIO33
+#define PIN_FUNCTION_P34  32u // GPIO34
+#define PIN_FUNCTION_P35  33u // GPIO35
+#define PIN_FUNCTION_P36  34u // GPIO36
+#define PIN_FUNCTION_P37  35u // GPIO37
+#define PIN_FUNCTION_P38  36u // GPIO38
+#define PIN_FUNCTION_P39  37u // GPIO39
+#define PIN_FUNCTION_PWM0 6u  // GPIO6
+#define PIN_FUNCTION_PWM1 7u  // GPIO7
+#define PIN_FUNCTION_PWM4 22u // GPIO24
+#define PIN_FUNCTION_PWM5 24u // GPIO26
+#define PIN_FUNCTION_RTS1 11u // GPIO13
+#define PIN_FUNCTION_RX1  8u  // GPIO10
+#define PIN_FUNCTION_RX2  1u  // GPIO1
+#define PIN_FUNCTION_SCK  12u // GPIO14
+#define PIN_FUNCTION_SCL1 18u // GPIO20
+#define PIN_FUNCTION_SCL2 0u  // GPIO0
+#define PIN_FUNCTION_SDA1 19u // GPIO21
+#define PIN_FUNCTION_SDA2 1u  // GPIO1
+#define PIN_FUNCTION_TX1  9u  // GPIO11
+#define PIN_FUNCTION_TX2  0u  // GPIO0