const int buzzer = 4;
const int led = 5;

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

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(buzzer, HIGH);
  digitalWrite(led, HIGH);
  tone(buzzer,100);
  delay(1000);
  digitalWrite(buzzer, LOW);
  digitalWrite(led, LOW);
  noTone(buzzer);
  delay(1000);
}