Introduction - If you have any usage issues, please Google them yourself
Through the use of MCS-51 series MCU intersection traffic light control system design, system functions: Road and South Road sub things, set things Road to A Avenue, North-South Road as a B road. Requirements: A Road clearance time is 90 seconds, B Road, released 60 seconds the green light, red light stop green light turn red light, yellow light for 2 seconds