This script scans for nearby Bluetooth devices and get an approximation of the distance by using well known RSSI to distance formula. Requirments You need to have a BLE USB dongle BleuIO https://www.bleuio.com/ To run the script, you need a web application bundler. You can use parceljs. https://parceljs.org/getting_started.html Instructions git clone https://github.com/smart-sensor-devices-ab/ble_distance_measure.git Go inside the folder type in terminal parcel index.html You can also run this script from online at https://smart-sensor-devices-ab.github.io/ble_distance_measure/dist/ read more at https://www.bleuio.com/blog/details.php?id=1218&title=Get-Bluetooth-Device-Distance-Using-BleuIO