交通灯是现代交通非常重要的一个组成部分，一套好的交通灯系统往往对提升城市交通运输效率，降低事故发生率有至关重要的影响。

本系统由单片机系统、控制系统、交通灯演示系统组成。

选用单片机作为此次设计的控制系统主要是考虑到单片机的通用性和廉价性。-Traffic lights are very important for a modern transport component of a good set of traffic light systems tend to enhance the urban transport efficiency and reduce the accident rate has a crucial impact. The system consists of single-chip systems, control systems, traffic lights demo system. Use microcontroller as the design of the control system is mainly on account of the microcontroller versatility and cheapness.