1、基于STC89C51单片机

2、数码管倒计时显示时间。

3、东西和南北方向各有两个数码管，分别显示时间，东西和南北的时间是不一样的哦，要相差黄灯的时间才是正确的。

4、可以分别设置主干道和支干道的通行时间。

5、有紧急模式，可以特种车辆优先通行或交通事故应急处理。-

1, based on single-chip STC89C51

2, the digital countdown display time.

3, each of the two north-south direction and things digital, show time, and the north and south of the time things are not the same, oh, a difference of yellow time is correct.

4, can set the access roads and branch roads in time.

5, there is an emergency mode, special vehicles priority traffic accidents or emergency treatment.