arduino ide esp32无源蜂鸣器弹小星星（带休止符）

之前学习esp32时发现很多人都在说无源蜂鸣器无法关闭，于是我想出了一个好方法，即没有关闭无源蜂鸣器，又让他一点声音都没有，众所周知，声音是由一个物品的震动发出，物品震动的频率就是声音的频率，所以我们让蜂鸣器发出0赫兹的声音，等于真正的让他不发出声音。无源蜂鸣器接gpio22

#define bp 22
#define chanel 0
typedef struct data {
  note_t note; //音符
  uint8_t level; //音阶 4 为我们平常时所听到的那个8度
  uint16_t interval; //持续时间
  int x; //音符播放后的空时间
} note;

note tones[]={
  {NOTE_C,4,500,0},
  {NOTE_C,4,500,0},
  {NOTE_G,4,500,0},
  {NOTE_G,4,500,0},
  {NOTE_A,4,500,0},
  {NOTE_A,4,500,0},
  {NOTE_G,4,725,250},
  {NOTE_F,4,500,0},
  {NOTE_F,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_D,4,500,0},
  {NOTE_D,4,500,0},
  {NOTE_C,4,725,250},
  {NOTE_G,4,500,0},
  {NOTE_G,4,500,0},
  {NOTE_F,4,500,0},
  {NOTE_F,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_D,4,725,250},
  {NOTE_G,4,500,0},
  {NOTE_G,4,500,0},
  {NOTE_F,4,500,0},
  {NOTE_F,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_D,4,725,250},
  {NOTE_C,4,500,0},
  {NOTE_C,4,500,0},
  {NOTE_G,4,500,0},
  {NOTE_G,4,500,0},
  {NOTE_A,4,500,0},
  {NOTE_A,4,500,0},
  {NOTE_G,4,725,250},
  {NOTE_F,4,500,0},
  {NOTE_F,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_E,4,500,0},
  {NOTE_D,4,500,0},
  {NOTE_D,4,500,0},
  {NOTE_C,4,725,250},
}; //曲子包含所有的音符
//NOTE_C do
//NOTE_Cs 升do
//NOTE_D re
//NOTE_Eb 降mi 
//NOTE_E mi
//NOTE_F fa
//NOTE_Fs 升fa
//NOTE_G sol
//NOTE_Gs 升sol
//NOTE_A la
//NOTE_Bb 降ti
//NOTE_B ti

byte tonesSize=sizeof(tones)/sizeof(note);

void xiuzhi(uint8_t channel,unsigned long long deley)
{
  ledcWriteTone(channel,0);
  delay(deley);
}

void setup()
{
  // put your setup code here, to run once:
  ledcSetup(chanel,20000,10);
  ledcAttachPin(bp,0);
}
void loop()
{
  // put your main code here, to run repeatedly:
  // ledcWriteTone(0,200);
  // delay(200);
  // ledcWriteTone(0,500);
  // delay(200);
  // ledcWriteNote(0,NOTE_C,4);
  // delay(500);
  for(int i=0;i

#define bp 22

#define chanel 0

typedef struct data {

  note_t note; //音符

  uint8_t level; //音阶 4 为我们平常时所听到的那个8度

  uint16_t interval; //持续时间

  int x; //音符播放后的空时间

} note;

note tones[]={

  {NOTE_C,4,500,0},

  {NOTE_C,4,500,0},

  {NOTE_G,4,500,0},

  {NOTE_G,4,500,0},

  {NOTE_A,4,500,0},

  {NOTE_A,4,500,0},

  {NOTE_G,4,725,250},

  {NOTE_F,4,500,0},

  {NOTE_F,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_D,4,500,0},

  {NOTE_D,4,500,0},

  {NOTE_C,4,725,250},

  {NOTE_G,4,500,0},

  {NOTE_G,4,500,0},

  {NOTE_F,4,500,0},

  {NOTE_F,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_D,4,725,250},

  {NOTE_G,4,500,0},

  {NOTE_G,4,500,0},

  {NOTE_F,4,500,0},

  {NOTE_F,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_D,4,725,250},

  {NOTE_C,4,500,0},

  {NOTE_C,4,500,0},

  {NOTE_G,4,500,0},

  {NOTE_G,4,500,0},

  {NOTE_A,4,500,0},

  {NOTE_A,4,500,0},

  {NOTE_G,4,725,250},

  {NOTE_F,4,500,0},

  {NOTE_F,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_E,4,500,0},

  {NOTE_D,4,500,0},

  {NOTE_D,4,500,0},

  {NOTE_C,4,725,250},

}; //曲子包含所有的音符

//NOTE_C do

//NOTE_Cs 升do

//NOTE_D re

//NOTE_Eb 降mi

//NOTE_E mi

//NOTE_F fa

//NOTE_Fs 升fa

//NOTE_G sol

//NOTE_Gs 升sol

//NOTE_A la

//NOTE_Bb 降ti

//NOTE_B ti

byte tonesSize=sizeof(tones)/sizeof(note);

void xiuzhi(uint8_t channel,unsigned long long deley)

{

  ledcWriteTone(channel,0);

  delay(deley);

}

void setup()

{

  // put your setup code here, to run once:

  ledcSetup(chanel,20000,10);

  ledcAttachPin(bp,0);

}

void loop()

{

  // put your main code here, to run repeatedly:

  // ledcWriteTone(0,200);

  // delay(200);

  // ledcWriteTone(0,500);

  // delay(200);

  // ledcWriteNote(0,NOTE_C,4);

  // delay(500);

  for(int i=0;i

  {

    ledcWriteNote(chanel,tones[i].note,tones[i].level);

    delay(tones[i].interval);

    xiuzhi(chanel,tones[i].x);

  }

}