[jnwatson]

I tried doing something similar. I rigged an array of Bluetooth receivers to a Raspberry Pi inside a large cabinet, and then attached inexpensive beacons to liquor bottles. The idea was to be able to quickly locate individual bottles.

The project failed because the drivers or devices don't provide enough precision (1 dBm might represent several inches).

With room mapping, you can use round trip time, which is a bit more reliable.

[jimiasty]

Please note our Location Beacons with UWB have two radios: - Bluetooth (BLE) that is low-power and can give few meters positioning accuracy - Ultra-wide-band (UWB) that's not low-power, but can give inch-precision.

This Robot Operating System (ROS) SDK does use both radios. We use BLE and Bluetooth mesh to power UWB that are nearby to preserve energy of the system.