MLpranav

void loop() {
  if (digitalRead(button)==LOW){ //if button is pressed
    for (int thisNote = 0; thisNote < looptune; thisNote++) {
      int noteDuration = 750/4;
      tone(buzzer, melody[thisNote%72], noteDuration);
      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      noTone(buzzer);
    }
  }

MLpranav

void setup() {
  pinMode(button, INPUT_PULLUP);
  looptune = looptune * 72; //do not change this
}

MLpranav

int melody[] = {
  NOTE_G5, NOTE_G5, NOTE_G5, NOTE_G5, 
  NOTE_C5, NOTE_AS4, NOTE_A4, NOTE_F4,
  NOTE_G4, 0, NOTE_G4, NOTE_D5,
  NOTE_C5, 0, NOTE_AS4, 0,
  NOTE_A4, 0, NOTE_A4, NOTE_A4,
  NOTE_C5, 0, NOTE_AS4, NOTE_A4, 
  NOTE_G4,0, NOTE_G4, NOTE_AS5,
  NOTE_A5, NOTE_AS5, NOTE_A5, NOTE_AS5,
  NOTE_G4,0, NOTE_G4, NOTE_AS5,

MLpranav

#include "pitches.h"
int button = 5; //pin to connect to button
int buzzer = 8; //pin to connect to buzzer +ve terminal
int looptune = 2; // how many times do you want the tune to loop

MLpranav

//To use TX as GPIO:
pinMode(1, FUNCTION_3);
//To use RX as GPIO:
pinMode(3, FUNCTION_3);