jukebox.cpp

Go to the documentation of this file.

#include "jukebox.h"
#include "ThisThread.h"
#include "mbed.h"
 
using namespace Jukebox;
 
PwmOut buzzer(D3);
bool isPlaying = false;
 
#define NOTE_C4 262 // Defining note frequency
#define NOTE_D4 294
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_G4 392
#define NOTE_A4 440
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_D5 587
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_G5 784
#define NOTE_A5 880
#define NOTE_B5 988
 
float notes[] = { // Note of the song, 0 is a rest/pulse
    NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5,
    0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0, NOTE_A4, NOTE_G4, NOTE_A4, 0,
 
    NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5,
    0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0, NOTE_A4, NOTE_G4, NOTE_A4, 0,
 
    NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_C5, NOTE_D5, NOTE_D5,
    0, NOTE_D5, NOTE_E5, NOTE_F5, NOTE_F5, 0, NOTE_E5, NOTE_D5, NOTE_E5,
    NOTE_A4, 0,
 
    NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, NOTE_D5, NOTE_E5, NOTE_A4, 0,
    NOTE_A4, NOTE_C5, NOTE_B4, NOTE_B4, 0, NOTE_C5, NOTE_A4, NOTE_B4, 0,
 
    NOTE_A4, NOTE_A4,
    // Repeat of first part
    NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4,
    0, NOTE_A4, NOTE_G4, NOTE_A4, 0,
 
    NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5,
    0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0, NOTE_A4, NOTE_G4, NOTE_A4, 0,
 
    NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_C5, NOTE_D5, NOTE_D5,
    0, NOTE_D5, NOTE_E5, NOTE_F5, NOTE_F5, 0, NOTE_E5, NOTE_D5, NOTE_E5,
    NOTE_A4, 0,
 
    NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, NOTE_D5, NOTE_E5, NOTE_A4, 0,
    NOTE_A4, NOTE_C5, NOTE_B4, NOTE_B4, 0, NOTE_C5, NOTE_A4, NOTE_B4, 0,
    // End of Repeat
 
    NOTE_E5, 0, 0, NOTE_F5, 0, 0, NOTE_E5, NOTE_E5, 0, NOTE_G5, 0, NOTE_E5,
    NOTE_D5, 0, 0, NOTE_D5, 0, 0, NOTE_C5, 0, 0, NOTE_B4, NOTE_C5, 0, NOTE_B4,
    0, NOTE_A4,
 
    NOTE_E5, 0, 0, NOTE_F5, 0, 0, NOTE_E5, NOTE_E5, 0, NOTE_G5, 0, NOTE_E5,
    NOTE_D5, 0, 0, NOTE_D5, 0, 0, NOTE_C5, 0, 0, NOTE_B4, NOTE_C5, 0, NOTE_B4,
    0, NOTE_A4};
int duration[] =
    { // duration of each note (in ms) Quarter Note is set to 250 ms
        125, 125, 250, 125, 125, 125, 125, 250, 125, 125, 125, 125, 250, 125,
        125, 125, 125, 375, 125,
 
        125, 125, 250, 125, 125, 125, 125, 250, 125, 125, 125, 125, 250, 125,
        125, 125, 125, 375, 125,
 
        125, 125, 250, 125, 125, 125, 125, 250, 125, 125, 125, 125, 250, 125,
        125, 125, 125, 125, 250, 125,
 
        125, 125, 250, 125, 125, 250, 125, 250, 125, 125, 125, 250, 125, 125,
        125, 125, 375, 375,
 
        250, 125,
        // Rpeat of First Part
        125, 125, 250, 125, 125, 125, 125, 250, 125, 125, 125, 125, 375, 125,
 
        125, 125, 250, 125, 125, 125, 125, 250, 125, 125, 125, 125, 250, 125,
        125, 125, 125, 375, 125,
 
        125, 125, 250, 125, 125, 125, 125, 250, 125, 125, 125, 125, 250, 125,
        125, 125, 125, 125, 250, 125,
 
        125, 125, 250, 125, 125, 250, 125, 250, 125, 125, 125, 250, 125, 125,
        125, 125, 375, 375,
        // End of Repeat
 
        250, 125, 375, 250, 125, 375, 125, 125, 125, 125, 125, 125, 125, 125,
        375, 250, 125, 375, 250, 125, 375, 125, 125, 125, 125, 125, 500,
 
        250, 125, 375, 250, 125, 375, 125, 125, 125, 125, 125, 125, 125, 125,
        375, 250, 125, 375, 250, 125, 375, 125, 125, 125, 125, 125, 500};
 
 
void Jukebox::play() {
  if (isPlaying) {
    return;
  }
 
  isPlaying = true;
  buzzer.resume();
 
  const int songspeed = 1.5;
  float result;
  float bzz = 0.5;
 
  for (int i = 0; i < 203; i++) {
    if (!isPlaying) {
      stop();
    }
 
    int w = duration[i] * songspeed;
    if (notes[i] == 0) {
      result = 1;
      bzz = 0;
    } else {
      result = 1 / notes[i];
      bzz = 0.4;
    }
 
    buzzer.period(result);
    buzzer.write(bzz);
 
    wait_us(w * 1000);
  }
 
  buzzer.suspend();
}
 
void Jukebox::stop() {
  buzzer.suspend();
  isPlaying = false;
}
 
bool Jukebox::is_playing() {
  return isPlaying;
}