Introduction - If you have any usage issues, please Google them yourself
The use of dynamic scanning and Timer 1 in the digital display on the tube starting from 765 432 to 1/10 sec down and remain down until the 765 398 number displayed at the same time using Timer 0 to 500MS speed of light from water to next move, when the LED on the reduced number of stops, the experimental water board and then all the lights have stopped flashing, 3 seconds (timed with T0) water all the lights turned off, digital tube display " HELLO" . This hold. Let the crystal frequency is 12MHz.