This post is by Home Assistant contributor Greg Dowling.
In Part 1 I talked about using iBeacons to improve presence tracking. In part 2 I’ll talk about how to track things like keys that can’t track themselves by using iBeacons.
Tracking things using iBeacons
In the first part I mentioned that iBeacons just send out I’m here packets, and we used this to trigger an update when your phone came close to a fixed beacon.
But beacons don’t have to be fixed.
Your phone knows roughly where it is located (based on mobile phone masts, Wi-Fi networks or GPS). If your phone sees an I’m here message then it knows the beacon is close.
If your phone can remember (or tell a server) where it was when it last saw the iBeacon - then it knows where the beacon was. So the result of this is that you can track where an iBeacon was - even though the iBeacon doesn’t have any tracking technology itself.
So if you put an iBeacon on your keys or in your car - then you can track them.
Here are my keys - with a Estimote Nearable iBeacon stuck to them. Ugly but effective!
Read on →