Introduction - If you have any usage issues, please Google them yourself
* Crossroads traffic light controller* * The first one states: trunk, branch roads are red flag, 5S* * The second states: trunk light green 30S, branch roads red light* * The third-state : main road turn bright green light flashing three times yellow, branch roads red light 3S* * The fourth state: trunk red light, green light sticks roads 25S* * the fifth state: trunk red light , branch roads turn bright green light flashing three times yellow 3S* * to return to the second state*