使用arduino编写蜂鸣器演奏 青花瓷的代码

以下是使用 Arduino 控制蜂鸣器演奏《青花瓷》的示例代码：

// 定义蜂鸣器引脚
#define BUZZER_PIN 8

// 定义音符频率
#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

// 定义每个音符的持续时间
#define NOTE_DURATION 500

// 定义演奏的曲目
int melody[] = {
  NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_B4, NOTE_A4, NOTE_G4,
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_B4, NOTE_A4, NOTE_G4,
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_B4, NOTE_A4, NOTE_G4,
  NOTE_A4, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_G4, NOTE_A4,
  NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_B4, NOTE_A4, NOTE_G4,
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_B4, NOTE_A4, NOTE_G4,
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_G4, NOTE_E4, NOTE_D4, NOTE_C4
};

// 定义演奏的曲目对应的节奏
int noteDurations[] = {
  NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION,
  NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION,
  NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION,
  NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION,
  NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION,
  NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION,
  NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION, NOTE_DURATION
};

void setup() {
  // 初始化串口
  Serial.begin(9600);
  // 设置蜂鸣器引脚为输出
  pinMode(BUZZER_PIN, OUTPUT);
}

void loop() {
  // 演奏曲目
  for (int i = 0; i < sizeof(melody) / sizeof(int); i++) {
    tone(BUZZER_PIN, melody[i], noteDurations[i]);
    delay(noteDurations[i] * 1.3); // 延时一段时间以让音符完整演奏
    noTone(BUZZER_PIN); // 停止演奏
  }
}

你可以将以上代码复制到 Arduino IDE 中，然后将 Arduino 板子连接到计算机上，选择正确的板子和端口，编译上传即可。在演奏时，将蜂鸣器连接到 Arduino 板子的 8 号引脚上即可。