Personal wrote a serial communication program, and I hope to be helpful.

个人写的一个串口通讯程序，希望对大家有帮助。

youdao

Serial communication, the microcontroller the lower end of the program.

串口通信中，单片机端的下位机程序。

youdao

Serial communication, the microcontroller the lower end of the program.

串口通信中，单片机端的下位机程序。

youdao