Introduction - If you have any usage issues, please Google them yourself
The system consists of single-chip microcomputer system, keyboard, LED display, traffic lights demo system. System, including the sidewalk, turn left, turn right, as well as the basic function of traffic lights. System functions in addition to basic traffic lights, but also has a countdown, time settings, emergency management, sub-time adjustment of the light signal in accordance with the specific circumstances of time and manual control functions