Introduction - If you have any usage issues, please Google them yourself
This program integrated interrupt, timer, LED lights, digital display, to be completed by every 100ms digital display reduces the number 1, while the speed of 500ms water to light, when the number of stops on the digital control experiment on-board water Then all the lights have stopped flashing, 3s after the water all the lights turned off, digital tube display " 8520" , and then hold