基于MCU的交通灯控制系统。在交通灯设计加入了一些新的功能。本项目用，用at89s51与电脑来完成一个可控的交通灯控制系统。详细内容，请看doc说明。-MCU-based traffic light control system. At the traffic light design added some new features. The project uses, with at89s51 and computer to complete a controlled traffic ligh