const int buttonPin = 2;
const int buzzerPin = 12;

void setup()

 {
  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(buzzerPin, OUTPUT);
  Serial.begin(9600);
}

void loop() 

{
  int buttonState = digitalRead(buttonPin);

  if (buttonState == LOW) 
  
  {
    digitalWrite(buzzerPin, HIGH);
    Serial.println("buzzer pressed");
    tone(buzzerPin , 262); 

    delay(200);
    digitalWrite(buzzerPin, LOW);
    Serial.println("buzzer released");
    delay(200);
  } 
  
  else
  
   {
    digitalWrite(buzzerPin, LOW);
     noTone(buzzerPin);
  }

}