Cannot connect ELM327

[Beaniepud]

I've setup the example OBD widget in the hudiy dashboard. Set the MAC for the device in the main config (this is definitely correct) and paired the device to the pi through the GUIs Bluetooth menu


When I try to connect it to the pi, it says connection failed as there's no usable services

Carrying on regardless, I've rebooted, and it's gone into Hudiy but the widget doesn't display any data

Now, using the connection status tool in your example package, it says state 2, which obviously means it's not connected

Why



Also, does anyone know of a way to dim a new waveshare screen? I know that's aside but worth asking

[hudiy]

Hello,
Which ELM327 dongle are you using? It's possible that your dongle uses, for example, a non-standard rfcommChannel or requires a different startupSequence.

https://github.com/wiboma/hudiy/blob/ma ... ion.md#obd

Please also send the logs ($HOME/.hudiy/log/hudiy.*.log) and the contents of main_configuration.json. You can zip them and upload here to the thread.

[Beaniepud]

Okay! I'll upload that later, problem I'm finding is how would I find, or set the rfcomm address if the pi doesn't connect to it and just said " connection failed as there are no usable services"

[hudiy]

Okay! I'll upload that later, problem I'm finding is how would I find, or set the rfcomm address if the pi doesn't connect to it and just said " connection failed as there are no usable services"

This message can be ignored. It doesn't affect pairing or connecting to the device. It comes from the Raspberry Pi OS Bluetooth plugin (of wf-panel-pi).