#define buzzer 3

void setup() {
  pinMode(buzzer, OUTPUT);
  pinMode(LED_BUILTIN, OUTPUT);
 
}

void loop() {

tone(buzzer, );
delay();
tone(buzzer, );
delay();
tone(buzzer, );
delay();
tone(buzzer, );
delay();


  digitalWrite(11, HIGH);
  digitalWrite(8, HIGH);
  digitalWrite(3, HIGH);
  delay(1000);
  digitalWrite(11, LOW);
  digitalWrite(8, LOW);
  digitalWrite(3, LOW);
  delay(1000);
}