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The awesome thing with wireless IoT is that it can be set up without any additional cabling, which can be extremely painful process in most homes.

In case of wireless all you need is ESP32, relay and a power supply. And all of that together will cost less than 10$.

Can you easily (cheaply) use the already existing power cables for PJDL? I know there are network repeaters that use power cables to transfer data, but I have no idea how much it would cost in IoT scenario. Do you have some examples?




Yes many users have squatted old phone wiring, here in italy in most houses it is embedded in walls, and it is present in most rooms. Being unused and obsolete it can be used for home automation with PJON :)




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