code.txt

/*
  Song name
  Connect a piezo buzzer or speaker to pin 11 or select a new pin.
  More songs available at https://github.com/robsoncouto/arduino-songs
   Template based on: Robson Couto, 2019
*/
#define NOTE_B0  31
insert notes here
#define REST      0


// change this to make the song slower or faster
int tempo = 100;

// change this to whichever pin you want to use
int buzzer = 11;

// notes of the moledy followed by the duration.
// a 4 means a quarter note, 8 an eighteenth , 16 sixteenth, so on
// !!negative numbers are used to represent dotted notes,
// so -4 means a dotted quarter note, that is, a quarter plus an eighteenth!!
int melody[] = {

  // Name of song
  // Score available at: 
  NOTE_B4, 16, NOTE_B5, 16, NOTE_FS5, 16, NOTE_DS5, 16, //1
  NOTE_B5, 32, NOTE_FS5, -16, NOTE_DS5, 8, NOTE_C5, 16,
  NOTE_C6, 16, NOTE_G6, 16, NOTE_E6, 16, NOTE_C6, 32, NOTE_G6, -16, NOTE_E6, 8,

  NOTE_B4, 16,  NOTE_B5, 16,  NOTE_FS5, 16,   NOTE_DS5, 16,  NOTE_B5, 32,  //2
  NOTE_FS5, -16, NOTE_DS5, 8,  NOTE_DS5, 32, NOTE_E5, 32,  NOTE_F5, 32,
  NOTE_F5, 32,  NOTE_FS5, 32,  NOTE_G5, 32,  NOTE_G5, 32, NOTE_GS5, 32,  NOTE_A5, 16, NOTE_B5, 8
};

// sizeof gives the number of bytes, each int value is composed of two bytes (16 bits)
// there are two values per note (pitch and duration), so for each note there are four bytes
int notes = sizeof(melody) / sizeof(melody[0]) / 2;

// this calculates the duration of a whole note in ms
int wholenote = (60000 * 4) / tempo;

int divider = 0, noteDuration = 0;

void setup() {
  // iterate over the notes of the melody.
  // Remember, the array is twice the number of notes (notes + durations)
  for (int thisNote = 0; thisNote < notes * 2; thisNote = thisNote + 2) {

    // calculates the duration of each note
    divider = melody[thisNote + 1];
    if (divider > 0) {
      // regular note, just proceed
      noteDuration = (wholenote) / divider;
    } else if (divider < 0) {
      // dotted notes are represented with negative durations!!
      noteDuration = (wholenote) / abs(divider);
      noteDuration *= 1.5; // increases the duration in half for dotted notes
    }

    // we only play the note for 90% of the duration, leaving 10% as a pause
    tone(buzzer, melody[thisNote], noteDuration * 0.9);

    // Wait for the specief duration before playing the next note.
    delay(noteDuration);

    // stop the waveform generation before the next note.
    noTone(buzzer);
  }
}

void loop() {
  // no need to repeat the melody.
}