電路非常簡單，用一個多小時就搞定了，效果還不錯吧?

這是做的搖搖棒：

傳感器特寫，想想看，水銀開關(guān)為什么是斜著裝置的。

發(fā)光二極管接P0口和P2口，傳感器用了中斷0，圖中的K2為水銀開關(guān)。

電原理圖

C語言源程序

#include

char KY;

unsigned char code GB_16[] =

{

0x00,0x00,0x00,0x00,0x1F,0xE0,0x0F,0xC0, //中

0x08,0x40,0x08,0x40,0x08,0x40,0xFF,0xFF,

0x7F,0xFE,0x08,0x40,0x08,0x40,0x08,0x40,

0x0F,0xE0,0x1F,0xC0,0x08,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0xFF,0xFF,0x7F,0xFE, //國

0x40,0x0A,0x49,0x0A,0x49,0x0A,0x4F,0xFA,

0x4F,0xFA,0x49,0xCA,0x5B,0x7A,0x49,0x2A,

0x40,0x0A,0x7F,0xFF,0xFF,0xFE,0x40,0x00,

0x00,0x00,0x08,0x01,0x08,0x0E,0xFF,0xFC, //加

0x7F,0xF0,0x08,0x04,0x08,0x02,0x0F,0xFF,

0x1F,0xFE,0x08,0x00,0x3F,0xFE,0x1F,0xFC,

0x10,0x08,0x10,0x08,0x1F,0xFE,0x3F,0xFC,

0x00,0x00,0x08,0x20,0x87,0x1E,0x72,0x7F, //油

0x31,0xC6,0x06,0x00,0x00,0x00,0x1F,0xFF,

0x0F,0xFE,0x08,0x42,0xFF,0xFE,0x7F,0xFE,

0x08,0x42,0x0F,0xFF,0x1F,0xFE,0x08,0x00

};

void DelayUs(unsigned int N)

{

unsigned int x;

for(x=0; x=N;x++);

}

void intersvr0(void) interrupt 0 using 1

{

int i;

KY=~KY;

if(KY==0){

DelayUs(1200);

for(i=0;i64;i++){

P2=~GB_16[i*2];

P0=~GB_16[i*2+1];

DelayUs(80);

P2=0xff;P0=0xff;

}

}

}

/*演示主程序*/

void main(void)

{

IT0=1;EX0=1;

EA=1;

KY=0;

P0=0xff;

P2=0xff;

while(1){

}

}