I do something like that for my home assistant: I have a few shelly smart plugs that can scan BLE. They filter for apple watches and send the MAC and RSSI to my

I do something like that for my home assistant: I have a few shelly smart plugs that can scan BLE. They filter for apple watches and send the MAC and RSSI to my home assistant where a small neural net then tries to detect the location within my apartment. It works better than I expected given the high variance of signal strength, even when standing still.