tone()

Play from array

This structure plays a melody from an array which contains ints in frequence-duration-pairs.

// Include the tone frequence definitions
#include "notes.h"

// When not using 16MHz clock, you can tune the sound speed here:
// {BaseLength} * TONE_MULTI / TONE_DIV       (default * 7 / 3)
#define TONE_MULTI 7
#define TONE_DIV 3
// Define the pin to use as audio pin
#define PIN_A 4

// An example melody
const int Beethoven[] = { NOTE_E6,  60, NOTE_DS6, 60, NOTE_E6,  60, NOTE_DS6, 60, NOTE_E6, 60, NOTE_B5,  60, NOTE_D6,  60, NOTE_C6,  60,  NOTE_A5, 120, NOTE_P,   60, NOTE_C5,  60, NOTE_E5,  60, NOTE_A5, 60, NOTE_B5, 120, NOTE_P,   60, NOTE_E5,  60,  NOTE_GS5, 60, NOTE_B5,  60, NOTE_C6, 120, NOTE_P,   60, NOTE_E5, 60, NOTE_E6,  60, NOTE_DS6, 60, NOTE_E6,  60,  NOTE_DS6, 60, NOTE_E6,  60, NOTE_B5,  60, NOTE_D6,  60, NOTE_C6, 60, NOTE_A5, 120, NOTE_P,   60, NOTE_C5,  60,  NOTE_E5,  60, NOTE_A5,  60, NOTE_B5, 120, NOTE_P,   60, NOTE_E5, 60, NOTE_C6,  60, NOTE_B5,  60, NOTE_A5, 120 };

// Plays the passed melody
void playMelody(int melody[], int len) {
  int note, duration;
  for (int i = 0; i < len; i += 2) {
    note = melody[i];
    duration = melody[i | 1] * TONE_MULTI / TONE_DIV;
    tone(PIN_A, note, duration);
    delay(duration + 20);
  }
}

void setup() {
  // Set the pin mode of of the audio pin to output
  pinMode(PIN_A, OUTPUT);

    // Play the melody
  int len = sizeof(Beethoven) / sizeof(int) - 1;
  playMelody(Beethoven, len);
}

void loop() { }

Note definitions

Defines notes frequencies for the notes.h file used in melody arrays.

#define NOTE_P 0
#define NOTE_B6 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978

Example melody

const int Beethoven[] = {
    NOTE_E6,  60, NOTE_DS6, 60, NOTE_E6,  60, NOTE_DS6, 60, NOTE_E6, 60, NOTE_B5,  60, NOTE_D6,  60, NOTE_C6,  60, 
    NOTE_A5, 120, NOTE_P,   60, NOTE_C5,  60, NOTE_E5,  60, NOTE_A5, 60, NOTE_B5, 120, NOTE_P,   60, NOTE_E5,  60, 
    NOTE_GS5, 60, NOTE_B5,  60, NOTE_C6, 120, NOTE_P,   60, NOTE_E5, 60, NOTE_E6,  60, NOTE_DS6, 60, NOTE_E6,  60, 
    NOTE_DS6, 60, NOTE_E6,  60, NOTE_B5,  60, NOTE_D6,  60, NOTE_C6, 60, NOTE_A5, 120, NOTE_P,   60, NOTE_C5,  60, 
    NOTE_E5,  60, NOTE_A5,  60, NOTE_B5, 120, NOTE_P,   60, NOTE_E5, 60, NOTE_C6,  60, NOTE_B5,  60, NOTE_A5, 120
};