Hi Hacker News,
this is Jakub, co-founder of Estimote, Inc.
Earlier this year we have added additional UWB radio to our BLE beacons. We did that mostly for floor-plan auto-mapping (read more here: http://blog.estimote.com/post/154460651570/estimote-beacons-...)
Many people asked us if it is possible for robots/drones/AGVs to connect to UWB beacons and get few-inches precision location positioning, so we have decided to release a ROS package.
You can install it on your Raspberry PI, connect to UWB beacons and start locating your robot/device.
We are around - let us know if you have any questions?