/*************************************************

* Program name: Infrared photoelectric obstacle avoidance module enables the use of

* MCU: STC89C52RC *

* OSC: 12MHz *

* WDT: DIS *

* compile software: V4.00a Vision *

*************************************************/

#include

LED sbit = P1^0; / / indicator of object detection in front of the Low level lighting

EN sbit = P1^1; Whether to open the infrared detection module / / High level effective

SIG sbit = P1^2; / / low level detection of infrared module Low level effective

Void delay_nus (unsigned int i) / / delay: i>=12, I 12 US single minimum delay

{

I=i/10;

While (--i);

}

Void delay_nms (unsigned int n) n MS / / delay

{

N=n+1;

While (--n)

Delay_nus (900); / / delay 1ms, at the same time compensation

}

Main void ()

{

While (1)

{

EN = 1; The infrared detection module / open

Delay_nms (150); / / detection processing time for infrared obstacle avoidance module 150mS

If (SIG = 0) / / infrared obstacle avoidance module output low level

LED = 0; Connection / / Yang

Else

LED = 1;

EN = 0; / / close infrared module detection

Delay_nms (400); / / indicator working time (i.e., each module 400MS launched a test)

}

}