Hi,
Find attached a short vidéo and 2 binaries showcasing proximity detection using BLE.
Our friends from Ob'do developped this proto starting from available project examples.
Code will be made available in the coming hours.
Binaries are attached as well if you want to try. One behaves as an anchor and one as a mobile device.
The anchor must be reset (as in the video once proximity of the mobile device was detected)
Enjoy !