arduino蜂鸣器小星星音乐代码

以下是使用 Arduino 蜂鸣器播放 "小星星" 的示例代码：

#define NOTE_C4  262
#define NOTE_D4  294
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_G4  392
#define NOTE_A4  440
#define NOTE_B4  494
#define NOTE_C5  523

int starMelody[] = {
  NOTE_C4, NOTE_C4, NOTE_G4, NOTE_G4,
  NOTE_A4, NOTE_A4, NOTE_G4,
  NOTE_F4, NOTE_F4, NOTE_E4, NOTE_E4,
  NOTE_D4, NOTE_D4, NOTE_C4,
  NOTE_G4, NOTE_G4, NOTE_F4, NOTE_F4,
  NOTE_E4, NOTE_E4, NOTE_D4,
  NOTE_G4, NOTE_G4, NOTE_F4, NOTE_F4,
  NOTE_E4, NOTE_E4, NOTE_D4,
  NOTE_C4, NOTE_C4, NOTE_G4, NOTE_G4,
  NOTE_A4, NOTE_A4, NOTE_G4,
  NOTE_F4, NOTE_F4, NOTE_E4, NOTE_E4,
  NOTE_D4, NOTE_D4, NOTE_C4
};

int starNoteDurations[] = {
  4, 4, 4, 4,
  4, 4, 2,
  4, 4, 4, 4,
  4, 4, 2,
  4, 4, 4, 4,
  4, 4, 2,
  4, 4, 4, 4,
  4, 4, 2,
  4, 4, 4, 4,
  4, 4, 2,
  4, 4, 4, 4,
  4, 4, 2
};

void playNote(int note, int duration) {
  tone(8, note, duration);
  delay(duration+10);
}

void setup() {
  pinMode(8, OUTPUT);
}

void loop() {

  for (int i = 0; i < sizeof(starMelody) / sizeof(starMelody[0]); i++) {
    int noteDuration = 1000 / starNoteDurations[i];
    playNote(starMelody[i], noteDuration);
  }

}