So I just started playing with a piezo buzzer and the tone() function and I managed to write some songs with it. Basically the song starts at the press of a button, but I was wondering if I could stop it while it's playing with a press of the same button. Here is the code:
#define B0 31
#define C1 33
#define CS1 35
#define D1 37
#define DS1 39
#define E1 41
#define F1 44
#define FS1 46
#define G1 49
#define GS1 52
#define A1 55
#define AS1 58
#define B1 62
#define C2 65
#define CS2 69
#define D2 73
#define DS2 78
#define E2 82
#define F2 87
#define FS2 93
#define G2 98
#define GS2 104
#define A2 110
#define AS2 117
#define B2 123
#define C3 131
#define CS3 139
#define D3 147
#define DS3 156
#define E3 165
#define F3 175
#define FS3 185
#define G3 196
#define GS3 208
#define A3 220
#define AS3 233
#define B3 247
#define C4 262
#define CS4 277
#define D4 294
#define DS4 311
#define E4 330
#define F4 349
#define FS4 370
#define G4 392
#define GS4 415
#define A4 440
#define AS4 466
#define B4 494
#define C5 523
#define CS5 554
#define D5 587
#define DS5 622
#define E5 659
#define F5 698
#define FS5 740
#define G5 784
#define GS5 831
#define A5 880
#define AS5 932
#define B5 988
#define C6 1047
#define CS6 1109
#define D6 1175
#define DS6 1245
#define E6 1319
#define F6 1397
#define FS6 1480
#define G6 1568
#define GS6 1661
#define A6 1760
#define AS6 1865
#define B6 1976
#define C7 2093
#define CS7 2217
#define D7 2349
#define DS7 2489
#define E7 2637
#define F7 2794
#define FS7 2960
#define G7 3136
#define GS7 3322
#define A7 3520
#define AS7 3729
#define B7 3951
#define C8 4186
#define CS8 4435
#define D8 4699
#define DS8 4978
int button = 2;
#define melodyPin 3
int melody[] = {
D4, E4, F4, E4, D4, A4, A4, G4, F4, E4, D4, E4, F4, G4, A4, D5, CS5, D5, E5, D4, E4, F4, E4, D4, A4, A4, G4, F4, E4, D4, E4, F4, G4, A4, D5, CS5, D5, E5, CS5, D5,
};
int tempo[] = {
16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 16, 16, 16, 16, 8, 8, 8, 8, 4, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 16, 16, 16, 16, 8, 8, 16, 16, 16, 16, 2,
};
int underworld_melody[] = {
D5, E5, F5, E5, D5, A4, AS4, A4, AS4, A4, D5, E5, F5, E5, D5, A4, AS4, A4, AS4, A4, F5, D5, AS4, A4, F5, D5, AS4, A4, F5, D5, AS4, A4, G4, A4, F4, E4,
};
//Underwolrd tempo
int underworld_tempo[] = {
16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5,
};
void setup(void)
{
Serial.begin(9600);
pinMode(3, OUTPUT);//buzzer
pinMode(2, INPUT);//led indicator when singing a note
}
void loop()
{
if (digitalRead(button) == 1) {
//sing the tunes
sing(1);
delay(25);
sing(2);
delay(25);
sing(1);
}
}
int song = 0;
void sing(int s) {
// iterate over the notes of the melody:
song = s;
if (song == 2) {
Serial.println(" 'Underworld Theme'");
int size = sizeof(underworld_melody) / sizeof(int);
for (int thisNote = 0; thisNote < size; 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.
int noteDuration = 1000 / underworld_tempo[thisNote];
buzz(melodyPin, underworld_melody[thisNote], noteDuration);
// 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);
// stop the tone playing:
buzz(melodyPin, 0, noteDuration);
}
} else {
Serial.println(" 'Mario Theme'");
int size = sizeof(melody) / sizeof(int);
for (int thisNote = 0; thisNote < size; 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.
int noteDuration = 1000 / tempo[thisNote];
buzz(melodyPin, melody[thisNote], noteDuration);
// 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);
// stop the tone playing:
buzz(melodyPin, 0, noteDuration);
}
}
}
void buzz(int targetPin, long frequency, long length) {
digitalWrite(13, HIGH);
long delayValue = 1000000 / frequency / 2; // calculate the delay value between transitions
//// 1 second's worth of microseconds, divided by the frequency, then split in half since
//// there are two phases to each cycle
long numCycles = frequency * length / 1000; // calculate the number of cycles for proper timing
//// multiply frequency, which is really cycles per second, by the number of seconds to
//// get the total number of cycles to produce
for (long i = 0; i < numCycles; i++) { // for the calculated length of time...
digitalWrite(targetPin, HIGH); // write the buzzer pin high to push out the diaphram
delayMicroseconds(delayValue); // wait for the calculated delay value
digitalWrite(targetPin, LOW); // write the buzzer pin low to pull back the diaphram
delayMicroseconds(delayValue); // wait again or the calculated delay value
}
digitalWrite(13, LOW);
}
So... any help on doing that? Any bit of help is appreciated.
Thanks in advance.
Before you ask, the code is "semi-stolen" from a Super Mario theme, hence the "overworld" and "underworld" titles 