#define BUZZER_pin 11
void setup() {
  // put your setup code here, to run once:
pinMode(BUZZER_pin, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
tone(BUZZER_pin,150);
delay(500);
noTone(BUZZER_pin);
delay(500);
tone(BUZZER_pin,100,1000);
delay(2000);
}