03全国电子设计大赛题目设计，小车实现金属探测并报警，自动寻线，自动避障，光源检测等功能。-Base on the microcontroller 89c52, the mini-car can race intellectually by detecting the black guide-line, then dodge the barriers and finally reach the destination. The system adopts photo electronic sen

C语言程序 单片机程序 C++ 基于89C52的PWM红外的解码资料-C