The loopback test method can save you plenty of trouble if you need to diagnose a UART or similar serial interface. It's simple but effective, and uses my favorite free serial terminal: RealTerm. #microcontroller
UARTs are foundational systems in digital devices. Should your UART converter run into trouble with data corruption, intermittency, or total loss of signal; this method and software will hopefully get you back on track.
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0:20 - Material Requirements
1:31 - RealTerm v 22.214.171.124
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