Bleak returns a mac address that is 00:00:00:00:00:00
ZeldricTom opened this issue · comments
- bleak version: 0.21.1
- Python version: 3.9.2
- Operating System: Raspbian GNU/Linux 11 (bullseye)
- BlueZ version (
bluetoothctl -v) in case of Linux: 5.66
Description
I'm trying to get the mac address from a BLE device. But it returns a mac address equal to -> 00:00:00:00:00:00
What I Did
Of course I tried to restart the rasp, I also tried to see if there bluetooth drivers I needed to install, but didn't find any. I was unable to find any good thread for this type of problem.
My code
Here is the code I use to get the mac addresses.
import asyncio
from bleak import BleakScanner
async def discover_devices():
devices = await BleakScanner.discover(timeout=20)
for device in devices:
print(f"Device: {device.name}, Address: {device.address}")
asyncio.run(discover_devices())
Here is what my pc sees. Also, only this BLE device has this mac address. Every other bluetooth device has a correct mac address.
Please see https://bleak.readthedocs.io/en/latest/troubleshooting.html to enable debug logging and how to log Bluetooth packets.
Bleak only reports the value returned by BlueZ so this is likely a BlueZ issue or an issue with the Bluetooth adapter.
@dlech Here are the logs
https://pastebin.com/dGWPBpn4
As seen in the second line of the logs:
2024-01-05 14:22:14,983 bleak.backends.bluezdbus.manager MainThread DEBUG: received D-Bus signal: org.freedesktop.DBus.Properties.PropertiesChanged (/org/bluez/hci0/dev_00_00_00_00_00_00):BlueZ thinks the device address is all 0s.
Is there a way to fix the issue? Do we need to downgrade BlueZ to an earlier version?
I would start with logging Bluetooth packets. If the device is actually sending the address 00:00:00:00:00:00 then there is nothing wrong with the software.
The device is sending a MAC address since I can see it on MacOS