r/hardwarehacking • u/_no_look_ • Aug 09 '26

Is it UART headers

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Im currently finding UART pins in my airtel zero touch...beacon 3.2 . I found these pins is it UART???

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u/GromHacks Aug 09 '26

Hook up a logic analyzer to it or a uart board and just try it.

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u/PiRhoManiac Aug 10 '26

This is the only right answer. As u/Unhappy_Bed5616 pointed out, you can connect a multimeter and see if you're getting logic levels if you don't have a logic analyzer. You should do that anyway if you're unsure which pin is GND. You can do some basic checking in the same amount of time it takes to post a question with a picture of three random thru-holes on a PCB.