Use LED common cathode mode to write and run without error unsigned char code BitTab[]={0x02,0x04,0x08,0x10,0x20,0x40,0x80}; unsigned char code DispTab[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,...
I recently bought a 315M wireless module. Since there is no codec chip, I decided to use a single-chip microcomputer to encode and decode it myself. However, the output level of the wireless transmitt...