Smtonoff 63a

Hi All.

Anyone have experience with a SMTONOFF 63A? Would like to flash it with ESP or TASMOTA. This device works only with eWelink so far.
Anyone know where the 3.3V/GND and RX/TX are located on the board? Or any other way to access it?

Thanks

I saw the Tasmo template. Just need to know now how to access the device.

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