ESP32学习3--蜂鸣器播放超级玛丽

#define LEDC_CHANNEL_0 0

// use 13 bit precission for LEDC timer

#define LEDC_TIMER_13_BIT  13

// 定义工具IO口

#define LED_PIN            2

//创建音乐旋律列表，超级玛丽

int melody[] = {330, 330, 330, 262, 330, 392, 196, 262, 196, 165, 220, 247, 233, 220, 196, 330, 392, 440, 349, 392, 330, 262, 294, 247, 262, 196, 165, 220, 247, 233, 220, 196, 330, 392,440, 349, 392, 330, 262, 294, 247, 392, 370, 330, 311, 330, 208, 220, 262, 220, 262,

294, 392, 370, 330, 311, 330, 523, 523, 523, 392, 370, 330, 311, 330, 208, 220, 262,220, 262, 294, 311, 294, 262, 262, 262, 262, 262, 294, 330, 262, 220, 196, 262, 262,262, 262, 294, 330, 262, 262, 262, 262, 294, 330, 262, 220, 196};

//创建音调持续时间列表

int noteDurations[] = {8,4,4,8,4,2,2,3,3,3,4,4,8,4,8,8,8,4,8,4,3,8,8,3,3,3,3,4,4,8,4,8,8,8,4,8,4,3,8,8,2,8,8,8,4,4,8,8,4,8,8,3,8,8,8,4,4,4,8,2,8,8,8,4,4,8,8,4,8,8,3,3,3,1,8,4,4,8,4,8,4,8,2,8,4,4,8,4,1,8,4,4,8,4,8,4,8,2};

void setup() {

}

void loop() {

  int noteDuration;

  for (int i = 0; i < sizeof(noteDurations); ++i)

  {

      noteDuration = 800/noteDurations[i];

      ledcSetup(LEDC_CHANNEL_0, melody[i]*2, LEDC_TIMER_13_BIT);

      ledcAttachPin(LED_PIN, LEDC_CHANNEL_0);

      ledcWrite(LEDC_CHANNEL_0, 50);

      delay(noteDuration * 1.30);

  }

}