The traffic light is timed and lets cars pass during a specific time period. There is a pedestrial crossing button that lets pedestrians cross. The lights are connected to Port 1. You can see this in action using dScope.

Packet : 63535312my_traffic_for_c51r.rar filelist
traffic\readme.c
traffic\abstract.txt
traffic\getline.c
traffic\serial.c
traffic\traffic.dmo
traffic\traffic.c
traffic\TRAFFIC.INC
traffic\TRAFFIC.Opt
traffic\TRAFFIC.Uv2
traffic

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