/* Melody Plays a melody circuit: * 8-ohm speaker on digital pin 8 created 21 Jan 2010 modified 30 Aug 2011 by Tom Igoe modified 20 Nov 2013 by kaima This example code is in the public domain. http://arduino.cc/en/Tutorial/Tone */ #include "pitches.h" // notes in the melody: int melody[] = { NOTE_A3, NOTE_C4, NOTE_D4, NOTE_A4, NOTE_E4, NOTE_D4, NOTE_C4, 0, NOTE_D4, NOTE_F4, NOTE_G4, NOTE_F4, NOTE_D4, NOTE_C4, NOTE_A3, 0, NOTE_A3, NOTE_C4, NOTE_D4, NOTE_A4, NOTE_E4, NOTE_D4, NOTE_C4, NOTE_F4, NOTE_E4, NOTE_C4, NOTE_A3, NOTE_G3, NOTE_A3, NOTE_C4, NOTE_A3, 0}; // note durations: 4 = quarter note, 8 = eighth note, etc.: // int noteDurations[] = {4, 8, 8, 4,4,4,4,4}; // int duration = 4; void setup() { // iterate over the notes of the melody: for (int thisNote = 0; thisNote < 32; thisNote ++) { // to calculate the note duration, take one second // divided by the note type. //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc. int noteDuration = 1000/duration; // 1000/noteDurations[thisNote]; tone(8, melody[thisNote],noteDuration); // to distinguish the notes, set a minimum time between them. // the note's duration + 30% seems to work well: int pauseBetweenNotes = noteDuration * 1.30; delay(pauseBetweenNotes); // stop the tone playing: noTone(8); } } void loop() { // no need to repeat the melody. }