显示模块包括数码管动态扫描电路和译码显示电路，动态扫描电路用于选择需要显示的数码管，译码显示电路用于将输入的二进制信息转换为数码管显示编码。显示模块中使用四个数码管显示倒计数值，两个用于显示东西方向倒计时值，两个用于显示南北方向倒计时值，使用四组红、黄、绿发光二极管显示通行、进行和转弯。由于没有转弯控制信号灯，所以使用红灯、绿灯亮黄灯闪烁作为转弯的指示信号。-The display module includes a dynamic scanning circuit and decoding of digital tube display circuit, the dynamic scanning circuit for digital control, you need to display and decode display circuit for the input binary information is converted to digital display coding. Display module using four digital tube display the countdown value, two used to show the east-west direction countdown value, two for the show north-south direction of the countdown value, the use of four groups of red, yellow and green LEDs indicate the passage, and turning. Turn control the lights, so the use of red light green light yellow light flashing as turn indication signal.