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submitted 2 days ago by cm0002@infosec.pub to c/reverseengineering@infosec.pub

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[–] cm0002@infosec.pub 1 points 1 day ago

In this case it looks like a three pin socket. Serial connection perhaps?

Could be UART, UART technically only needs TX, RX and a ground pin. The 3.3/5v pin is optional