// practice how to add buzzer and use it

int speakerPin = 8;
int switchPin = 11;

void setup() {
pinMode(speakerPin, OUTPUT);
pinMode(switchPin, INPUT);
}

void loop() {
if (digitalRead(switchPin) == HIGH) {
  tone(speakerPin, 4000);
}
else {
  noTone(speakerPin);
}
}