checkBuzzer

const int buzzerPin = 11;  // Pin connected to the speaker

void buzz(uint16_t repeat = 2) {
  const int melody[] = { 1000, 1200, 1000, 1200 };  // Frequencies in Hz
  const int duration = 150; // Duration of each tone in ms

  for (uint16_t r = 0; r < repeat; r++) {
    for (int i = 0; i < sizeof(melody) / sizeof(int); i++) {
      tone(buzzerPin, melody[i]);
      delay(duration);
      noTone(buzzerPin);
      delay(50); // Short pause between tones
    }
    delay(200); // Pause between repetitions
  }
}


void setup()  {
  pinMode(buzzerPin, OUTPUT);
  buzz(10);  // Play the melody 10 times on startup
}

void loop() {
  // Nothing here, we only test in setup()
}