Hi!    I wanted to share my solution for presence check using BLE tags or beacons, whatever you name it.    I have Raspberry Pi 3 B+ (built-in bluetooth). I've written Node.js script using Noble (https://github.com/noble/noble) and Node Fibaro API (https://github.com/leeroybrun/node-fibaro-api).    Noble is responsible for searching for the beacons.  Please login or register to see this code. foundBeacon provides some useful information such as RSSI or mac address of