#define BUZZER_PIN 13

void setup() {
  Serial.begin(115200);
  Serial.println("Buzzer Test");
  pinMode(BUZZER_PIN, OUTPUT);
}

void loop() {
  delay(2000);

  Serial.println("Playing first tone: 1000 Hz");
  tone(BUZZER_PIN, 1000);
  delay(2400);
  noTone(BUZZER_PIN);
  delay(2500);

  Serial.println("Playing second tone: 1500 Hz");
  tone(BUZZER_PIN, 1500);
  delay(2600);
  noTone(BUZZER_PIN);
  delay(2700);

  Serial.println("Playing third tone: 2000 Hz");
  tone(BUZZER_PIN, 2000);
  delay(2800);
  noTone(BUZZER_PIN);

  delay(3000);
}