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GUI Composer: How to send message to target control board with UART

Xiaoqiang Sun
Prodigy 230 points


Hello Expert,

I am using GUI composer to build a host project for 280039C control board testing. The communication between them is USB-UART.

Now I can read message from target. I plan to sent a message to target when a button is clicked. But I don't know how to implement this.

Is there a demo project? Please help to solve this issue, thanks a lot!