#include "pitches.h"

int buzzerPin = 8;
int btn = 12;
int btnState = 0;
void setup() {
  // put your setup code here, to run once:
  pinMode(btn, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  btnState = digitalRead(btn);
  if(btnState){
    // tone(buzzerPin, 262, 250);
    tone(buzzerPin, NOTE_C4);
  }else{
    noTone(buzzerPin);
  }
}