In recent years, with the increasing traffic flow, on the road in the city to ease pedestrian crossing the road when vehicles and pedestrians compete for this contradiction, in a number of pedestrians crossing the road sections are concentrated, such as schools, shopping malls, etc. on the front of the crosswalk installation of a crosswalk signal. The system uses the microcontroller AT89C51 as the core design and development of devices to control traffic lights, traffic lights crosswalk system design and development, to make the system more practical, easier operation. 1 the flow of people without a lot of time, the yellow lights flashing to 1s, to remind the vehicle slowly passed through the pedestrians to ensure safety. 2 in school, work, holidays, peak flow of people, press the control button lights, traffic light signal system timing work.

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