51单片机实现光源的跟踪

stop_turn()

{

P1_3=1;

P2_0=1;

P2_1=1;

}

void delay(unsigned int a)

{

unsigned int b,i,tt;

b=a;

for(i=1;i

{tt=60000;

while(tt--);}

}

void delay_10ms()

{

TMOD=0x01;

TF0=0;

TH0=(65536-18433)/256;//10ms

TL0=(65536-18433)%6;

TR0=1;

while(!TF0);

TR0=0;

}