Introduction - If you have any usage issues, please Google them yourself
EDA courses compiled job- traffic lights, the specific requirement is that the crossroads on the road in both directions each with a group of red, green and yellow lights, indicating the order: One way is to green, yellow, red, and the other direction is red, yellow, green setting up a group of digital controls to display the countdown to allow or prohibit the time, including green, yellow, red, respectively the duration of the 10S, 5S, 15S.