Well in this case, for the idea it was already in the training data. User said was out of ideas...trying to prop up the LLM smartness...
https://www.lifewire.com/how-to-find-a-lost-bluetooth-device...
https://android.stackexchange.com/questions/194584/locating-...
https://forums.macrumors.com/threads/i-lost-my-cellphone-som...
https://discussions.apple.com/thread/3317786?
And about the code...well...
- Complete Android code example specifically explains that Bluetooth RSSI can be used, cautiously, as a distance indicator. - https://mobile.fhstp.ac.at/development/rssi-messungen-von-bl...
- android-Bluetooth-RSSI-Scanner - https://github.com/TimingJL/android-Bluetooth-RSSI-Scanner
- https://stackoverflow.com/questions/22914532/ble-continuous-...
- https://github.com/alt236/Bluetooth-LE-Library---Android
These LLMs are mainly knowledge bases and compression engines.