// triplets
int buz = 6, rest = 80,
led[] = { 5, 3, 2}, // red, grn, blu
a3 = 220, b3 = 247,
c4 = 262, d4 = 294, e4 = 330, f4 = 349, g4 = 392, a4 = 440, b4 = 494,
c5 = 523, d5 = 587;
int triplet[] = { // key
a3, c4, e4, // Am
b3, d4, f4, // B
c4, e4, g4, // C
d4, f4, a4, // Dm
e4, g4, b4, // Em
f4, a4, c5, // F
g4, b4, d5, // G
};
void setup() {
randomSeed(analogRead(A0));
Serial.begin(115200);
pinMode(buz, OUTPUT);
for (int i = 0; i < 3; i++)
pinMode(led[i], OUTPUT);
}
void loop() {
aria();
}
void aria() {
int key = random(7);
for (int j = 0; j < 4; j++) {
for (int note = 0; note < 3; note++) {
digitalWrite(led[0], note == 0);
digitalWrite(led[1], note == 1);
digitalWrite(led[2], note == 2);
tone(buz, triplet[key * 3 + note], rest);
delay(rest);
noTone(buz);
delay(rest);
}
}
}
void blues() {
}
void fire () {
// e5, a5, f5, a5, g5, a5
// gdb gdb gd fda fda fd fda fda fd eca eca ec
// e, g, a, b, e
}