@namadori Thanks for the reply. I am pretty new at doing this kind of stuff. Any idea you can point me to tools needed to figure out the Vcc, Gnd, TX, RX? I am assuming they are probably the 5 white cables coming into the board.
If there are no points marked on the board, you should look for the pinout of the chip and follow the traces. If you are lucky there will be an easy point to connect, if not you’ll have to make a tiny solder on the leg of the chip.
If you don’t find any documentation it will need a bit of reverse engineering to understand the circuit.
I bought 2 of these and successfully flashed Tasmota firmware on it Via the SonOTA technique. Unfortunately, you cannot control the outlets independently. But controlling them both at the same time works perfectly with Tasmota and MQTT.