Introduction - If you have any usage issues, please Google them yourself
This program designed to take control and run the application software interface circuits, so that the interface connected to the red, green and yellow light-emitting diode according to the traffic intersection of red, green, yellow form of flashing, and display the countdown time for the green light. Program started, the four directions of the lights are all red, and then into a yellow light flashes, and then east-west direction for the red light, green light north-south direction and display the countdown time, countdown to the end, traffic lights into a yellow light, blinking After several east-west direction to become a green light from north to south into a red light, and then become yellow, and so the rules change according to the traffic lights alternating