Introduction - If you have any usage issues, please Google them yourself
Single-chip data communication with the pc serial port using visual programming software, the preparation of serial debugging, and then to the serial port " 1" , " 2" , " 3 " ......" 8" , " 9" , " 0" other characters, the experimental data received by the board digital display, while the PC will display a successful confirmation of the feedback signal that the PC serial port receive buffer debugging software will display " display OK!" and so forth.