manjuladangalla/ble-le-scan-python

A small implementation of LE scan in python using pydbus (https://github.com/LEW21/pydbus)

BLE-Le-Scan-python

A small implementation of LE scan in python using pydbus

Background

This assumes you have bluez5 installed on your Linux computer (tested with v5.28). Since dbus-python hasn't been updated since 2013, and is not pythonic (as described in its Readme file) I've implemented a version of bluetooth scanning using pydbus.

The idea was to originally to use pygattlib for an application, but the "Scan" function in gattlib needs admin rights/root access. This is a low-tech workaround (and a small primer to access DBus in python for bluetooth) for this problem.

Functioning

The idea is quite simple:

1. Start the StartDiscovery function on the org.bluez.Adapter1 interface for 20 seconds (or any suitable time),
2. Populate a dictionary with a list of discovered devices
3. Store this list of devices (with interface org.bluez.Device1) in text file

This solution was chosen since the signal_subscribe() function was not working properly. If anyone has tips on how to make dbus signal detection work with pydbus, please let me know!