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+--- Thread: Control Arduino through UART txd rxd (/showthread.php?tid=2527)
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RE: Control Arduino through UART txd rxd - jamos.tan@gmail.com - 2020-10-05
Right, I've now followed the logic level principle. Also, my board had only one direction and I needed bi-directional (my mistake).
Simple gps will show data with no problems when doing a simple sudo cat on the port, but the arduino would not communicate.