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by blackfawn 1085 days ago
I'd recommend looking at Tasmota and/or ESPHome support list and getting one of those. Both are 100% open source and do not talk to any external servers. Some devices can be reflashed over-the-air and some need to be taken apart and flashed via a serial header. A few devices, such as from Athom, come preloaded with Tasmota. Tasmota has a list of IN-specific devices: https://templates.blakadder.com/in.html Here is an example of opening one up and connecting to the serial header: https://templates.blakadder.com/oakter_oak_plug_plus_16A.htm...