Introduction - If you have any usage issues, please Google them yourself
2 row keyboard 8, PC0 and PC1 as a keyboard line, PA0 ~ PA7 keyboard out as shown in part 4 paragraph 7 with LED digital tube, PB and PD mouth through the mouth 4 of the 74LS47 to control digital tube
Packet : 87361045wangled.rar filelist
wangled.c