zigbee - how to add buton / switch to start identify action

[mmlody]

hello

my code for M5 nanoC6 - working but in "manual" way - call onIdentify is possible only through developer console in zigbee2mqtt
is possible to add endpoint with switch/button ? (like light switch or binary )

working example is in IKEA devices - many devices with identify button

my code:

identify-sample.txt

`
#ifndef ZIGBEE_MODE_ED
#error "Zigbee end device mode is not selected in Tools->Zigbee mode"
#endif

#include "Zigbee.h"

#define LED_PIN 7 // M5NanoC6 blue LED
#define BUTTON_PIN 9 // BOOT button

ZigbeeLight zbLight(10); // Endpoint 10

TaskHandle_t identifyTaskHandle = NULL;
volatile bool identifyActive = false;

// xTask dla Identify - mruga LED przez 5 sekund
static void identifyTask(void *arg) {
uint16_t identifyTime = ((uint16_t)arg); // Czas w sekundach
Serial.printf("Identify task started for %d seconds\n", identifyTime);

uint32_t endTime = millis() + (identifyTime * 1000);

while (millis() < endTime) {
digitalWrite(LED_PIN, HIGH);
vTaskDelay(200 / portTICK_PERIOD_MS);
digitalWrite(LED_PIN, LOW);
vTaskDelay(200 / portTICK_PERIOD_MS);
}

// Przywróć stan LED
digitalWrite(LED_PIN, zbLight.getLightState());
Serial.println("Identify task finished");

identifyActive = false;
vTaskDelete(NULL); // Usuń task
}

void setup() {
Serial.begin(115200);

// Inicjalizacja LED
pinMode(LED_PIN, OUTPUT);
digitalWrite(LED_PIN, LOW);

// Inicjalizacja przycisku
pinMode(BUTTON_PIN, INPUT_PULLUP);

// Konfiguracja Zigbee Light
zbLight.setManufacturerAndModel("M5Stack", "NanoC6-LED");
zbLight.setPowerSource(ZB_POWER_SOURCE_MAINS);

// Callback przy zmianie stanu przez Zigbee
zbLight.onLightChange([](bool state) {
digitalWrite(LED_PIN, state);
Serial.printf("Zigbee: LED %s\n", state ? "ON" : "OFF");
});

// Callback dla komendy Identify - uruchamia xTask
zbLight.onIdentify([](uint16_t identifyTime) {
Serial.println("identify start");

if (!identifyActive) {
  identifyActive = true;
  static uint16_t timeParam = identifyTime;
  timeParam = identifyTime > 0 ? identifyTime : 5;  // Domyślnie 5 sekund
  
  xTaskCreate(
    identifyTask,
    "identify",
    2048,
    &timeParam,
    5,
    &identifyTaskHandle
  );
}

});

// Dodaj endpoint
Zigbee.addEndpoint(&zbLight);

// Uruchom Zigbee
Serial.println("Starting Zigbee...");
if (!Zigbee.begin()) {
Serial.println("Zigbee failed!");
ESP.restart();
}

// Czekaj na połączenie
while (!Zigbee.connected()) {
Serial.print(".");
delay(100);
}
Serial.println("\nConnected!");
}

void loop() {
// Obsługa przycisku
if (digitalRead(BUTTON_PIN) == LOW) {
delay(100); // debounce

unsigned long pressStart = millis();
while (digitalRead(BUTTON_PIN) == LOW) {
  if (millis() - pressStart > 3000) {
    // Długie naciśnięcie: factory reset
    Serial.println("Factory reset...");
    delay(1000);
    Zigbee.factoryReset();
  }
  delay(50);
}

// Krótkie naciśnięcie: toggle LED
bool currentState = zbLight.getLightState();
zbLight.setLight(!currentState);
Serial.printf("Button: LED %s\n", !currentState ? "ON" : "OFF");

}

delay(100);
}

`

[P-R-O-C-H-Y]

Hi @mmlody, with HomeAssistant ZHA (not Z2M) the identify is fully working. You may likely need to Z2M a proper device configuration to have the identify button visible, but I don't use Z2M so can't help much there.