蜂鸣器与马达（电开版本）

马达是没有的啊，所以那个只能看看原理，蜂鸣器其实也没什么好说的，记得把那个跳线帽盖对位置就行，我放的代码是发声的
#include<reg52.h>
sbit BUZZ=P1^3;
unsigned char T0RH=0;
unsigned char T0RL=0;
void OpenBuzz(unsigned int frequ);
void StopBuzz();
void main()
{
unsigned int i;
TMOD=0x01;
EA=1;
while(1)
{
OpenBuzz(4000);
for(i=0;i<40000;i++);
StopBuzz();
for(i=0;i<40000;i++);
OpenBuzz(1000);
for(i=0;i<40000;i++);
StopBuzz();
for(i=0;i<40000;i++);
}
}
void OpenBuzz(unsigned int frequ)
{
unsigned int reload;
reload=65536-(32768000/12)/(frequ*2);
T0RH=(unsigned char)(reload>>8);
T0RL=(unsigned char)reload;
TH0=0xFF;
TL0=0xFE;
ET0=1;
TR0=1;
}
void InterruptTimer0() interrupt 1
{
TH0=T0RH;
TL0=T0RL;
BUZZ=~BUZZ;
}