The Raspberry PI seems to be dropping the connection to (some?) paired devices after 5-15 minutes of running a python script.
The Connection can be recreated with this shell command:
bluetoothctl
But to enter this command, the script would have to be killed and restarted afterwards.
Attention: After testing this approach for a while I found out it didn't fix the problem in general
NOT WORKING:
Although I didn't test running my program for several hours, this seems to do the trick.
from threading import Thread
from time import sleep
import subprocess
def bluetooth_stay_awake():
"""Ping the bluetooth compontent to keep all connections up"""
thread= Thread(target=(lambda:subprocess.run(["watch", "bluetoothctl"])))
thread.start()
Using the shell command watch bluetoothctl is important here, otherwise the bluetoothctl process would block you python script.
Shell Commands & Threading in Python
