fix(matter): fixes identify and double begin() call

libraries/Matter/examples/MatterOnIdentify/MatterOnIdentify.ino

@@ -51,6 +51,11 @@ uint32_t button_time_stamp = 0;                // debouncing control
 bool button_state = false;                     // false = released | true = pressed
 const uint32_t decommissioningTimeout = 5000;  // keep the button pressed for 5s, or longer, to decommission
 
+// Identify Flag and blink time - Blink the LED
+const uint8_t identifyLedPin = ledPin;  // uses the same LED as the Light - change if needed
+volatile bool identifyFlag = false;     // Flag to start the Blink when in Identify state
+bool identifyBlink = false;             // Blink state when in Identify state
+
 // Matter Protocol Endpoint (On/OFF Light) Callback
 bool onOffLightCallback(bool state) {
   digitalWrite(ledPin, state ? HIGH : LOW);
@@ -58,14 +63,19 @@ bool onOffLightCallback(bool state) {
   return true;
 }
 
-bool onIdentifyLightCallback(bool identifyIsActive, uint8_t counter) {
-  log_i("Identify Cluster is %s, counter: %d", identifyIsActive ? "Active" : "Inactive", counter);
+// Identification shall be done by Blink in Red or just the GPIO when no LED_BUILTIN is not defined
+bool onIdentifyLightCallback(bool identifyIsActive) {
+  log_i("Identify Cluster is %s", identifyIsActive ? "Active" : "Inactive");
   if (identifyIsActive) {
-    // Start Blinking the light
-    OnOffLight.toggle();
+    // Start Blinking the light in loop()
+    identifyFlag = true;
+    identifyBlink = !OnOffLight; // Start with the inverted light state
   } else {
     // Stop Blinking and restore the light to the its last state
-    OnOffLight.updateAccessory();
+    identifyFlag = false;
+    // force returning to the original state by toggling the light twice
+    OnOffLight.toggle();
+    OnOffLight.toggle();
   }
   return true;
 }
@@ -76,12 +86,16 @@ void setup() {
   // Initialize the LED GPIO
   pinMode(ledPin, OUTPUT);
 
+  Serial.begin(115200);
+
   // Manually connect to WiFi
   WiFi.begin(ssid, password);
   // Wait for connection
   while (WiFi.status() != WL_CONNECTED) {
     delay(500);
+    Serial.print(".");
   }
+  Serial.println();
 
   // Initialize at least one Matter EndPoint
   OnOffLight.begin();
@@ -95,16 +109,38 @@ void setup() {
   // Matter beginning - Last step, after all EndPoints are initialized
   Matter.begin();
 
+  // Check Matter Accessory Commissioning state, which may change during execution of loop()
   if (!Matter.isDeviceCommissioned()) {
-    log_i("Matter Node is not commissioned yet.");
-    log_i("Initiate the device discovery in your Matter environment.");
-    log_i("Commission it to your Matter hub with the manual pairing code or QR code");
-    log_i("Manual pairing code: %s\r\n", Matter.getManualPairingCode().c_str());
-    log_i("QR code URL: %s\r\n", Matter.getOnboardingQRCodeUrl().c_str());
+    Serial.println("");
+    Serial.println("Matter Node is not commissioned yet.");
+    Serial.println("Initiate the device discovery in your Matter environment.");
+    Serial.println("Commission it to your Matter hub with the manual pairing code or QR code");
+    Serial.printf("Manual pairing code: %s\r\n", Matter.getManualPairingCode().c_str());
+    Serial.printf("QR code URL: %s\r\n", Matter.getOnboardingQRCodeUrl().c_str());
+    // waits for Matter Occupancy Sensor Commissioning.
+    uint32_t timeCount = 0;
+    while (!Matter.isDeviceCommissioned()) {
+      delay(100);
+      if ((timeCount++ % 50) == 0) {  // 50*100ms = 5 sec
+        Serial.println("Matter Node not commissioned yet. Waiting for commissioning.");
+      }
+    }
+    Serial.println("Matter Node is commissioned and connected to Wi-Fi. Ready for use.");
   }
 }
 
 void loop() {
+  // check if the Ligth is in  identify state and blink it every 500ms (delay loop time)
+  if (identifyFlag) {
+#ifdef LED_BUILTIN
+    uint8_t brightness = 32 * identifyBlink;
+    rgbLedWrite(identifyLedPin, brightness, 0, 0);
+#else
+  digitalWrite(identifyLedPin, identifyBlink ? HIGH : LOW);
+#endif
+    identifyBlink = !identifyBlink;
+  }  
+
   // Check if the button has been pressed
   if (digitalRead(buttonPin) == LOW && !button_state) {
     // deals with button debouncing
@@ -124,5 +160,5 @@ void loop() {
     button_time_stamp = millis();  // avoid running decommissining again, reboot takes a second or so
   }
 
-  delay(500);
+  delay(500); // works as a debounce for the button and also for the LED blink
 }

libraries/Matter/src/Matter.cpp

@@ -30,11 +30,6 @@ static bool _matter_has_started = false;
 static node::config_t node_config;
 static node_t *deviceNode = NULL;
 
-typedef void *app_driver_handle_t;
-esp_err_t matter_light_attribute_update(
-  app_driver_handle_t driver_handle, uint16_t endpoint_id, uint32_t cluster_id, uint32_t attribute_id, esp_matter_attr_val_t *val
-);
-
 // This callback is called for every attribute update. The callback implementation shall
 // handle the desired attributes and return an appropriate error code. If the attribute
 // is not of your interest, please do not return an error code and strictly return ESP_OK.
@@ -72,22 +67,19 @@ static esp_err_t app_identification_cb(identification::callback_type_t type, uin
   esp_err_t err = ESP_OK;
   MatterEndPoint *ep = (MatterEndPoint *)priv_data;  // endpoint pointer to base class
   // Identify the endpoint sending a counter to the application
-  static uint8_t counter = 0;
   bool identifyIsActive = false;
 
   if (type == identification::callback_type_t::START) {
     log_v("Identification callback: START");
-    counter = 0;
     identifyIsActive = true;
   } else if (type == identification::callback_type_t::EFFECT) {
     log_v("Identification callback: EFFECT");
-    counter++;
   } else if (type == identification::callback_type_t::STOP) {
     identifyIsActive = false;
     log_v("Identification callback: STOP");
   }
   if (ep != NULL) {
-    err = ep->endpointIdentifyCB(endpoint_id, identifyIsActive, counter) ? ESP_OK : ESP_FAIL;
+    err = ep->endpointIdentifyCB(endpoint_id, identifyIsActive) ? ESP_OK : ESP_FAIL;
   }
   
   return err;

libraries/Matter/src/MatterEndPoint.h

@@ -103,14 +103,14 @@ public:
   virtual bool attributeChangeCB(uint16_t endpoint_id, uint32_t cluster_id, uint32_t attribute_id, esp_matter_attr_val_t *val) = 0;
 
   // This callback is invoked when clients interact with the Identify Cluster of an specific endpoint.
-  bool endpointIdentifyCB(uint16_t endpoint_id, bool identifyIsEnabled, uint8_t identifyCounter) {
+  bool endpointIdentifyCB(uint16_t endpoint_id, bool identifyIsEnabled) {
     if (_onEndPointIdentifyCB) {
-      return _onEndPointIdentifyCB(identifyIsEnabled, identifyCounter);
+      return _onEndPointIdentifyCB(identifyIsEnabled);
     }
     return true;
   }
   // User callaback for the Identify Cluster functionality
-  using EndPointIdentifyCB = std::function<bool(bool, uint8_t)>;
+  using EndPointIdentifyCB = std::function<bool(bool)>;
   void onIdentify(EndPointIdentifyCB onEndPointIdentifyCB) {
     _onEndPointIdentifyCB = onEndPointIdentifyCB;
   }

libraries/Matter/src/MatterEndpoints/MatterColorLight.cpp

@@ -162,8 +162,13 @@ MatterColorLight::~MatterColorLight() {
 
 bool MatterColorLight::begin(bool initialState, espHsvColor_t _colorHSV) {
   ArduinoMatter::_init();
-  rgb_color_light::config_t light_config;
 
+  if (getEndPointId() != 0) {
+    log_e("Matter RGB Color Light with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
+  rgb_color_light::config_t light_config;
   light_config.on_off.on_off = initialState;
   light_config.on_off.lighting.start_up_on_off = nullptr;
   onOffState = initialState;

libraries/Matter/src/MatterEndpoints/MatterColorTemperatureLight.cpp

@@ -26,17 +26,17 @@ using namespace chip::app::Clusters;
 bool MatterColorTemperatureLight::attributeChangeCB(uint16_t endpoint_id, uint32_t cluster_id, uint32_t attribute_id, esp_matter_attr_val_t *val) {
   bool ret = true;
   if (!started) {
-    log_e("Matter CW_WW Light device has not begun.");
+    log_e("Matter Temperature Light device has not begun.");
     return false;
   }
 
-  log_d("CW_WW Attr update callback: endpoint: %u, cluster: %u, attribute: %u, val: %u", endpoint_id, cluster_id, attribute_id, val->val.u32);
+  log_d("Temperature Attr update callback: endpoint: %u, cluster: %u, attribute: %u, val: %u", endpoint_id, cluster_id, attribute_id, val->val.u32);
 
   if (endpoint_id == getEndPointId()) {
     switch (cluster_id) {
       case OnOff::Id:
         if (attribute_id == OnOff::Attributes::OnOff::Id) {
-          log_d("CW_WW Light On/Off State changed to %d", val->val.b);
+          log_d("Temperature Light On/Off State changed to %d", val->val.b);
           if (_onChangeOnOffCB != NULL) {
             ret &= _onChangeOnOffCB(val->val.b);
           }
@@ -50,7 +50,7 @@ bool MatterColorTemperatureLight::attributeChangeCB(uint16_t endpoint_id, uint32
         break;
       case LevelControl::Id:
         if (attribute_id == LevelControl::Attributes::CurrentLevel::Id) {
-          log_d("CW_WW Light Brightness changed to %d", val->val.u8);
+          log_d("Temperature Light Brightness changed to %d", val->val.u8);
           if (_onChangeBrightnessCB != NULL) {
             ret &= _onChangeBrightnessCB(val->val.u8);
           }
@@ -64,7 +64,7 @@ bool MatterColorTemperatureLight::attributeChangeCB(uint16_t endpoint_id, uint32
         break;
       case ColorControl::Id:
         if (attribute_id == ColorControl::Attributes::ColorTemperatureMireds::Id) {
-          log_d("CW_WW Light Temperature changed to %d", val->val.u16);
+          log_d("Temperature Light Temperature changed to %d", val->val.u16);
           if (_onChangeTemperatureCB != NULL) {
             ret &= _onChangeTemperatureCB(val->val.u16);
           }
@@ -89,8 +89,13 @@ MatterColorTemperatureLight::~MatterColorTemperatureLight() {
 
 bool MatterColorTemperatureLight::begin(bool initialState, uint8_t brightness, uint16_t ColorTemperature) {
   ArduinoMatter::_init();
-  color_temperature_light::config_t light_config;
 
+  if (getEndPointId() != 0) {
+    log_e("Matter Temperature Light with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
+  color_temperature_light::config_t light_config;
   light_config.on_off.on_off = initialState;
   light_config.on_off.lighting.start_up_on_off = nullptr;
   onOffState = initialState;
@@ -108,12 +113,12 @@ bool MatterColorTemperatureLight::begin(bool initialState, uint8_t brightness, u
   // endpoint handles can be used to add/modify clusters.
   endpoint_t *endpoint = color_temperature_light::create(node::get(), &light_config, ENDPOINT_FLAG_NONE, (void *)this);
   if (endpoint == nullptr) {
-    log_e("Failed to create CW_WW light endpoint");
+    log_e("Failed to create Temperature Light endpoint");
     return false;
   }
 
   setEndPointId(endpoint::get_id(endpoint));
-  log_i("CW_WW Light created with endpoint_id %d", getEndPointId());
+  log_i("Temperature Light created with endpoint_id %d", getEndPointId());
 
   /* Mark deferred persistence for some attributes that might be changed rapidly */
   cluster_t *level_control_cluster = cluster::get(endpoint, LevelControl::Id);
@@ -134,7 +139,7 @@ void MatterColorTemperatureLight::end() {
 
 bool MatterColorTemperatureLight::setOnOff(bool newState) {
   if (!started) {
-    log_e("Matter CW_WW Light device has not begun.");
+    log_e("Matter Temperature Light device has not begun.");
     return false;
   }
 
@@ -175,7 +180,7 @@ bool MatterColorTemperatureLight::toggle() {
 
 bool MatterColorTemperatureLight::setBrightness(uint8_t newBrightness) {
   if (!started) {
-    log_w("Matter CW_WW Light device has not begun.");
+    log_w("Matter Temperature Light device has not begun.");
     return false;
   }
 
@@ -206,7 +211,7 @@ uint8_t MatterColorTemperatureLight::getBrightness() {
 
 bool MatterColorTemperatureLight::setColorTemperature(uint16_t newTemperature) {
   if (!started) {
-    log_w("Matter CW_WW Light device has not begun.");
+    log_w("Matter Temperature Light device has not begun.");
     return false;
   }
 

libraries/Matter/src/MatterEndpoints/MatterContactSensor.cpp

@@ -43,6 +43,11 @@ MatterContactSensor::~MatterContactSensor() {
 bool MatterContactSensor::begin(bool _contactState) {
   ArduinoMatter::_init();
 
+  if (getEndPointId() != 0) {
+    log_e("Matter Contact Sensor with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
   contact_sensor::config_t contact_sensor_config;
   contact_sensor_config.boolean_state.state_value = _contactState;
 

libraries/Matter/src/MatterEndpoints/MatterDimmableLight.cpp

@@ -75,8 +75,12 @@ MatterDimmableLight::~MatterDimmableLight() {
 
 bool MatterDimmableLight::begin(bool initialState, uint8_t brightness) {
   ArduinoMatter::_init();
-  dimmable_light::config_t light_config;
+  if (getEndPointId() != 0) {
+    log_e("Matter Dimmable Light with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
 
+  dimmable_light::config_t light_config;
   light_config.on_off.on_off = initialState;
   light_config.on_off.lighting.start_up_on_off = nullptr;
   onOffState = initialState;

libraries/Matter/src/MatterEndpoints/MatterEnhancedColorLight.cpp

@@ -178,8 +178,13 @@ MatterEnhancedColorLight::~MatterEnhancedColorLight() {
 
 bool MatterEnhancedColorLight::begin(bool initialState, espHsvColor_t _colorHSV, uint8_t brightness, uint16_t ColorTemperature) {
   ArduinoMatter::_init();
-  enhanced_color_light::config_t light_config;
 
+  if (getEndPointId() != 0) {
+    log_e("Matter Enhanced ColorLight with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
+  enhanced_color_light::config_t light_config;
   light_config.on_off.on_off = initialState;
   light_config.on_off.lighting.start_up_on_off = nullptr;
   onOffState = initialState;

libraries/Matter/src/MatterEndpoints/MatterFan.cpp

@@ -85,7 +85,12 @@ bool MatterFan::attributeChangeCB(uint16_t endpoint_id, uint32_t cluster_id, uin
 bool MatterFan::begin(uint8_t percent, FanMode_t fanMode, FanModeSequence_t fanModeSeq) {
   ArduinoMatter::_init();
 
-  // endpoint handles can be used to add/modify clusters.
+   if (getEndPointId() != 0) {
+    log_e("Matter Fan with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
+ // endpoint handles can be used to add/modify clusters.
   fan::config_t fan_config;
   fan_config.fan_control.fan_mode = fanMode;
   fan_config.fan_control.percent_current = percent;

libraries/Matter/src/MatterEndpoints/MatterGenericSwitch.cpp

@@ -42,12 +42,17 @@ bool MatterGenericSwitch::attributeChangeCB(uint16_t endpoint_id, uint32_t clust
 
 bool MatterGenericSwitch::begin() {
   ArduinoMatter::_init();
-  generic_switch::config_t switch_config;
 
+   if (getEndPointId() != 0) {
+    log_e("Matter Generic Switch with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
+  generic_switch::config_t switch_config;
   // endpoint handles can be used to add/modify clusters.
   endpoint_t *endpoint = generic_switch::create(node::get(), &switch_config, ENDPOINT_FLAG_NONE, (void *)this);
   if (endpoint == nullptr) {
-    log_e("Failed to create Generic switch endpoint");
+    log_e("Failed to create Generic Switch endpoint");
     return false;
   }
   // Add group cluster to the switch endpoint

libraries/Matter/src/MatterEndpoints/MatterHumiditySensor.cpp

@@ -43,6 +43,11 @@ MatterHumiditySensor::~MatterHumiditySensor() {
 bool MatterHumiditySensor::begin(uint16_t _rawHumidity) {
   ArduinoMatter::_init();
 
+  if (getEndPointId() != 0) {
+    log_e("Matter Humidity Sensor with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
   // is it a valid percentage value?
   if (_rawHumidity > 10000) {
     log_e("Humidity Sensor Percentage value out of range [0..100].");

libraries/Matter/src/MatterEndpoints/MatterOccupancySensor.cpp

@@ -52,6 +52,11 @@ MatterOccupancySensor::~MatterOccupancySensor() {
 bool MatterOccupancySensor::begin(bool _occupancyState, OccupancySensorType_t _occupancySensorType) {
   ArduinoMatter::_init();
 
+  if (getEndPointId() != 0) {
+    log_e("Matter Occupancy Sensor with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
   occupancy_sensor::config_t occupancy_sensor_config;
   occupancy_sensor_config.occupancy_sensing.occupancy = _occupancyState;
   occupancy_sensor_config.occupancy_sensing.occupancy_sensor_type = _occupancySensorType;

libraries/Matter/src/MatterEndpoints/MatterOnOffLight.cpp

@@ -59,8 +59,13 @@ MatterOnOffLight::~MatterOnOffLight() {
 
 bool MatterOnOffLight::begin(bool initialState) {
   ArduinoMatter::_init();
-  on_off_light::config_t light_config;
 
+  if (getEndPointId() != 0) {
+    log_e("Matter On-Off Light with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
+  on_off_light::config_t light_config;
   light_config.on_off.on_off = initialState;
   light_config.on_off.lighting.start_up_on_off = nullptr;
   onOffState = initialState;

libraries/Matter/src/MatterEndpoints/MatterOnOffPlugin.cpp

@@ -59,8 +59,13 @@ MatterOnOffPlugin::~MatterOnOffPlugin() {
 
 bool MatterOnOffPlugin::begin(bool initialState) {
   ArduinoMatter::_init();
-  on_off_plugin_unit::config_t plugin_config;
 
+  if (getEndPointId() != 0) {
+    log_e("Matter On-Off Plugin with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
+  on_off_plugin_unit::config_t plugin_config;
   plugin_config.on_off.on_off = initialState;
   plugin_config.on_off.lighting.start_up_on_off = nullptr;
 

libraries/Matter/src/MatterEndpoints/MatterPressureSensor.cpp

@@ -42,6 +42,11 @@ MatterPressureSensor::~MatterPressureSensor() {
 bool MatterPressureSensor::begin(int16_t _rawPressure) {
   ArduinoMatter::_init();
 
+  if (getEndPointId() != 0) {
+    log_e("Matter Pressure Sensor with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
   pressure_sensor::config_t pressure_sensor_config;
   pressure_sensor_config.pressure_measurement.pressure_measured_value = _rawPressure;
   pressure_sensor_config.pressure_measurement.pressure_min_measured_value = nullptr;

libraries/Matter/src/MatterEndpoints/MatterTemperatureSensor.cpp

@@ -42,6 +42,11 @@ MatterTemperatureSensor::~MatterTemperatureSensor() {
 bool MatterTemperatureSensor::begin(int16_t _rawTemperature) {
   ArduinoMatter::_init();
 
+  if (getEndPointId() != 0) {
+    log_e("Temperature Sensor with Endpoint Id %d device has already been created.", getEndPointId());
+    return false;
+  }
+
   temperature_sensor::config_t temperature_sensor_config;
   temperature_sensor_config.temperature_measurement.measured_value = _rawTemperature;
   temperature_sensor_config.temperature_measurement.min_measured_value = nullptr;