Introduction - If you have any usage issues, please Google them yourself
AT89C2051 drive common cathode LED Tube 6 6 AT89C2051 common cathode LED driver tube and count 65535 each sweep 1ms, time 0 added a code table 0-9, which p1.7 \ a ,,,,, p1.0 \ h 50h,,, 54h, one, ten, hundred, thousand, million 40h hex low, 41 high in hexadecimal