模拟交通灯控制就是使用单片机、PLC或其它器件来控制一些LED和数码管，模拟真实交通灯的功能。红、黄、绿交替闪亮，倒计数显示时间，方向灯指示方向等。-Simulation of traffic light control is the use of microcontroller, PLC or other device to control the number of LED and digital control, a virtual reality function of traffic