const int buttonPin = 3;
const int buzzerPin = 15;

void setup() {
  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  int buttonState = digitalRead(buttonPin);

 if (buttonState == LOW) {
   digitalWrite(buzzerPin, HIGH);
   delay(1000);
 } else {
   digitalWrite(buzzerPin, LOW);
 }
}