Look into a protocol like z-wave - you can already get switches, outlets, heating controllers etc and it can be done without an internet connection. You can get

Look into a protocol like z-wave - you can already get switches, outlets, heating controllers etc and it can be done without an internet connection. You can get a USB Z-Wave dongle[0] and then use Home Assistant [1] on a Pi to control everything. [0] - https://www.amazon.co.uk/AEON-AEOEZW090-C-Z-Stick-Gen5/dp/B00YETCNOE/ https://www.amazon.co.uk/AEON-AEOEZW090-C-Z-Stick-Gen5/dp/B0... [1] - https://github.com/home-assistant/home-assistant https://github.com/home-assistant/home-assistant