// * Jingle Bells
// * Original Composition :
// * Composed by :
// * Coded By - http://www.instructables.com/id/Arduino-Controlled-Flashing-Christmas-Fairy-Lights/step5/Code-for-Jingle-Bells/
// * Use BSD Clause 2 License for Distribution
// * Collection by GitHub User @abhishekghosh - https://github.com/AbhishekGhosh/Arduino-Buzzer-Tone-Codes
// TONES ========================================== // Start by defining the relationship between
// note, period, & frequency.
#define C 2100
#define D 1870
#define E 1670
#define f 1580 // Does not seem to like capital F
#define G 1400
// Define a special note, 'R', to represent a rest
#define R 0
// SETUP ============================================
// Set up speaker on a PWM pin (digital 9, 10 or 11)
int speakerOut = 10;
// Do we want debugging on serial out? 1 for yes, 0 for no
int DEBUG = 1;
void setup() {
pinMode(speakerOut, OUTPUT);
if (DEBUG) {
Serial.begin(9600); // Set serial out if we want debugging
}
}
// MELODY and TIMING =======================================
// melody[] is an array of notes, accompanied by beats[],
// which sets each note's relative length (higher #, longer note)
int melody[] = {E, E, E,R,
E, E, E,R,
E, G, C, D, E, R,
f, f, f,f, f, E, E,E, E, D ,D,E, D, R, G ,R,
E, E, E,R,
E, E, E,R,
E, G, C, D, E, R,
f, f, f,f, f, E, E, E, G,G, f, D, C,R };
int MAX_COUNT = sizeof(melody) / 2; // Melody length, for looping.
// Set overall tempo
long tempo = 10000;
// Set length of pause between notes
int pause = 1000;
// Loop variable to increase Rest length
int rest_count = 100; //<-BLETCHEROUS HACK; See NOTES
// Initialize core variables
int tone_ = 0;
int beat = 0;
long duration = 0;
// PLAY TONE ==============================================
// Pulse the speaker to play a tone for a particular duration
void playTone() {
long elapsed_time = 0;
if (tone_ > 0) { // if this isn't a Rest beat, while the tone has
// played less long than 'duration', pulse speaker HIGH and LOW
while (elapsed_time < duration) {
digitalWrite(speakerOut,HIGH);
delayMicroseconds(tone_ / 2);
// DOWN
digitalWrite(speakerOut, LOW);
delayMicroseconds(tone_ / 2);
// Keep track of how long we pulsed
elapsed_time += (tone_);
}
}
else { // Rest beat; loop times delay
for (int j = 0; j < rest_count; j++) { // See NOTE on rest_count
delayMicroseconds(duration);
}
}
}
// LET THE WILD RUMPUS BEGIN =============================
void loop() {
for (int i=0; i<MAX_COUNT; i++) {
tone_ = melody[i];
beat = 50;
duration = beat * tempo; // Set up timing
playTone();
// A pause between notes...
delayMicroseconds(pause);
}
}