/*Melody. Plays a melody
circuit:
8-ohm speaker on digital pin 8
created 21 Jan 2010, modified 30 Aug 2011 by Tom Igoe
This example code is in the public domain.
http://arduino.cc/en/Tutorial/Tone
*/
#include "pitches.h"
int melody[] = { // 8 notes in the melody (one is 0):
NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};
int noteDurations[] = { // note durations: 4 = quarter note, 8 = eighth note, etc.:
4, 8, 8, 4,4,4,4,4 };
void setup() {
for (int thisNote = 0; thisNote < 8; thisNote++) { // iterate over the notes of the melody:
int noteDuration = 1000/noteDurations[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.
tone(8, melody[thisNote],noteDuration); // tone: (pin8...frequency (noteC4 etc. from pitches.h)...duration)
// 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);
noTone(8); // stop the tone playing:
}
}
void loop() {
// no need to repeat the melody. please.
}