因电路非常简单，用一个多小时就搞定了，怎么样，效果还不错吧？ 这是做的摇摇棒： 传感器特写，想想看，水银开关为什么是斜着装置的。 

发光二极管接 P0 口和 P2 口，传感器用了中断 0，图中的 K2 为水银开关。 电原理图 

C 语言源程序 #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, //国 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;i<64;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){ } }