基于C51的智能小车程序，程序简洁明了，内有跑道示意图，实现避障，寻光，循迹，检测等功能，欢迎大家下载。-C51-based smart car program, the program concise diagram inside track to achieve obstacle avoidance, search light, tracking, testing and other functions, are welcome to download.

s3c2440封装示意图便于快速开发使用欢迎下载-The s3c2440 Package Drawing facilitate the rapid development of the use welcome to download

数电原理示意图。一些基础器件的原理示意动画显示。-Digital circuit schematic diagram. Some basic principles of the device schematically animation.