Arduino 无源蜂鸣器

 

代码

#define NTD0 -1
#define NTD1 294
#define NTD2 330
#define NTD3 350
#define NTD4 393
#define NTD5 441
#define NTD6 495
#define NTD7 556

#define NTDL1 147
#define NTDL2 165
#define NTDL3 175
#define NTDL4 196
#define NTDL5 221
#define NTDL6 248
#define NTDL7 278

#define NTDH1 589
#define NTDH2 661
#define NTDH3 700
#define NTDH4 786
#define NTDH5 882
#define NTDH6 990
#define NTDH7 112
//列出全部D调的频率
#define WHOLE 1
#define HALF 0.5
#define QUARTER 0.25
#define EIGHTH 0.25
#define SIXTEENTH 0.625
//列出所有节拍
int tune[]=                 //根据简谱列出各频率
{
  NTD3,NTD3,NTD4,NTD5,
  NTD5,NTD4,NTD3,NTD2,
  NTD1,NTD1,NTD2,NTD3,
  NTD3,NTD2,NTD2,
  NTD3,NTD3,NTD4,NTD5,
  NTD5,NTD4,NTD3,NTD2,
  NTD1,NTD1,NTD2,NTD3,
  NTD2,NTD1,NTD1,
  NTD2,NTD2,NTD3,NTD1,
  NTD2,NTD3,NTD4,NTD3,NTD1,
  NTD2,NTD3,NTD4,NTD3,NTD2,
  NTD1,NTD2,NTDL5,NTD0,
  NTD3,NTD3,NTD4,NTD5,
  NTD5,NTD4,NTD3,NTD4,NTD2,
  NTD1,NTD1,NTD2,NTD3,
  NTD2,NTD1,NTD1
};
float durt[]=                   //根据简谱列出各节拍
{
  1,1,1,1,
  1,1,1,1,
  1,1,1,1,
  1+0.5,0.5,1+1,
  1,1,1,1,
  1,1,1,1,
  1,1,1,1,
  1+0.5,0.5,1+1,
  1,1,1,1,
  1,0.5,0.5,1,1,
  1,0.5,0.5,1,1,
  1,1,1,1,
  1,1,1,1,
  1,1,1,0.5,0.5,
  1,1,1,1,
  1+0.5,0.5,1+1,
};
int length;
int tonepin=6;   //得用6号接口
void setup()
{
  pinMode(tonepin,OUTPUT);
  length=sizeof(tune)/sizeof(tune[0]);   //计算长度
}
void loop()
{
  for(int x=0;x<length;x++)
  {
    tone(tonepin,tune[x]);
    delay(500*durt[x]);   //这里用来根据节拍调节延时，500这个指数可以自己调整，在该音乐中，我发现用500比较合适。
    noTone(tonepin);
  }
  delay(2000);
}

 

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