Introduction - If you have any usage issues, please Google them yourself
Little Rides: the completion of the 8255 chip, 8255 chip connected with LED lights and buttons.
LED lights initial state of the light cycle
2 buttons and lights are one-to-one correspondence status, n (n = 1- 8) If the light is lit when the button is pressed, the game is successful, all the lights off. If the button n (n = 1- 8) Press the corresponding light n is not lit, but the other lights, the game fails, all the lights in the light cycle status.