int yellow = 9;
int buzzer = 10;
void setup() {
  // put your setup code here, to run once:
pinMode(yellow, OUTPUT);
pinMode(buzzer, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
tone(buzzer,2000);
digitalWrite(yellow,1);
delay(2000);
noTone(buzzer);
digitalWrite(yellow,0);
delay(3000);
}