This design is completed by the host computer through serial port control. The LED switch's luminous state is used to simulate the on-off of the switch circuit, and the upper computer's DOS command is used to control it. And use the LED screen to display the transmission of the program.

Filename	Size	Update
基于51单片机的上位机通讯系统说明书.doc	349566	2017-12-15

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