I need help with this project. The song is "God Rest Ye Merry Gentlemen" and I want to play this....I am having a lot of trouble with this code. The music is extremely off key and rarely off beat (but sometimes). I need help to put it back on key; I am new to arduino music, and I don't know all of the notes. Thanks for helping!
int speakerPin = 9;
int length = 69;
char notes[] = "ddaagfedcdefga ddaagfedcdefga aAfgavCDagfdefgfgavaagfedfedgfgavCDagfed";
int beats[] = { 2,2,2,2,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,2,2,2,2,2,2,2,2,2,4,2,2,2,2,2,2,2,2,2,2,2,2,2,2,4,2,2,4,2,2,2,2,2,2,4,1,1,2,4,2,2,2,2,2,2,2,2,2,2,8 };
int tempo = 100;
void playTone(int tone, int duration) {
for (long i = 0; i < duration * 1000L; i += tone * 2) {
digitalWrite(speakerPin, HIGH);
delayMicroseconds(tone);
digitalWrite(speakerPin, LOW);
delayMicroseconds(tone);
}
}
void playNote(char note, int duration) {
char names[] = { 'c', 'd', 'e', 'f', 'g', 'a', 'A', 'b', 'C', 'v' };
int tones[] = { 1915, 1700, 1519, 1432, 1275, 1136, 1014, 956 };
// play the tone corresponding to the note name
for (int i = 0; i < 8; i++) {
if (names[i] == note) {
playTone(tones[i], duration);
}
}
}
void setup() {
pinMode(speakerPin, OUTPUT);
}
void loop() {
for (int i = 0; i < length; i++) {
if (notes[i] == ' ') {
delay(beats[i] * tempo); // rest
} else {
playNote(notes[i], beats[i] * tempo);
}
// pause between notes
delay(tempo / 2);
}
}
