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Hey guys and girls

I am playing with the RE5V1C 5V Wifi Inching/Selflock Relay Module I want to use it to open and close a garage door, so I need two inputs to be able to know if thew door is fully open and fully closed.

I managed to load Tasmota onto it very easily, but I cannot get any info on the pads

ETX, ERX, TX, RX and IO2. How are they connected to the ESP8266? Does anybody have the schematic or more info?

Thank you


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