SoundAndMusic.ino

//
// SoundAndMusic
//
// Play music and blink the LED in synchronization
// 
// We are using port S0 on the Duinobot board 
//
//  NOTES: 
//      - Ports S0-S5 are analog input pins
//      - S0 is identical to Arduino A0 and so on (S5=A5)
//      - To use these ports as Digital pins add 14
//

#include "Arduino.h"
#include "pitches.h"

#define S0 0+14

// notes in the melody:
int melody[] = {
  NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
  4, 8, 8, 4,4,4,4,4 };

void setup() {
  pinMode(S0, OUTPUT);          // sets the S0 port as output for the LED
  pinMode(SPEAKER, OUTPUT);     // setup the speaker
}

void loop() {
  // iterate over the notes of the melody:
  for (int thisNote = 0; thisNote < 8; thisNote++) {

    // Sychronize the LED to light up when note G3 is played
    if (melody[thisNote] == NOTE_G3)
    {
      digitalWrite(S0, HIGH);
    }
    
    // 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/noteDurations[thisNote];
    toneDelay(SPEAKER, melody[thisNote],noteDuration);

    // turn off the LED
    digitalWrite(S0, LOW);

    // to distinguish the notes, set a minimum time between them.
    int pauseBetweenNotes = noteDuration * 0.8;
    delay(pauseBetweenNotes);
  }
  
  delay(1000);
}