Introduction - If you have any usage issues, please Google them yourself
Traffic light control, divided into six states, state 1: reset, all the lights went out 2 State: things green north and South Red maintain time 15s condition 3: Huangnan North Red maintain 5S time 4: things red north-south green maintaining time 15s 5: red thing north and South Yellow maintain 5S, 6: all red maintain 5S time. Each state time can be modified, the notes are clear