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nunorgp avatar image
nunorgp asked

Persistent Bluetooth Controller Crashes with Cerbo-GX v3.00


Hello,

I am using the Cerbo-GX v3.00 with an external Bluetooth dongle, specifically the TP-Link UB500. However, I am facing an issue where my Bluetooth controllers crash every day, regardless of whether it is the internal or external dongle. The only solution I have found so far is to reboot the Cerbo. I have tried various troubleshooting steps such as disconnecting and reconnecting the dongle, restarting Bluetooth, and more, but none of them have been successful.


When it is working :

list-controllers.jpg

When the controllers crash, Bluetoothctl is unable to find any controller :no-controller-available.jpg

Here are the steps I have taken to resolve the issue:

  1. I attempted to set the dongle as the default Bluetooth controller. However, this setting is not retained after a reboot, and the crashing issue persists.

  2. I even went as far as creating a custom back plate for the Cerbo with two 5V fans to keep it cool, but this did not resolve the Bluetooth crashing problem :cerbo-cooled.jpg

I'm wondering if anyone else has encountered a similar problem or if there are any suggestions for resolving this issue. One potential workaround I considered is using Node-RED to reboot the Cerbo automatically every day, but unfortunately, I couldn't find a specific node that can perform this reboot function. Any ideas on how to reboot the cerbo automatically .

Thank you for your assistance.


cerbo gxBluetoothtemperature
list-controllers.jpg (55.9 KiB)
no-controller-available.jpg (18.4 KiB)
cerbo-cooled.jpg (72.1 KiB)
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2 Answers
nunorgp avatar image
nunorgp answered ·

Ok workaround found ... Node Red .

Made a flow to restart the bluetooth module every 8 hours and it seems to be working, no more rebooting required.

Unfortunately did not find a way to use the bluetooth dongle, as the devices allways connect to the cerbogx internal bluetooth , so the fans are a must !


nodered-bluetooth-restart.jpg



nodered-bluetooth-restart.jpg (51.5 KiB)
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Matěj Liška avatar image Matěj Liška commented ·
What flow did you use? Thanks!
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nunorgp avatar image
nunorgp answered ·

The below flow restarts the bluetooth every 8 hours , and also checks for disconnects of the connected devices ( two batteries communicating via the dbus serial battery ). If one of them starts sending nulls, instead of the soc value the bluetooth is restarted after 5 minutes .


Everything is working for some days with just minor disconnects that require the 5 minute restart.

Hope it helps .


PS: you have to download the pallete node-red-contri-bigssh

flows (1).zip

1688595335337.png



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