I bridged the 3V3 gap to make this compatible with a RPi, but the module doesn't seem to be able to receive messages from the Pi. I confirmed that the Pi's port works by setting up a loop-back and confirming that I saw echoed output from whatever I typed.
I am able to receive random CAN packets I'm sending from a separate Arduino:

However, it doesn't seem to want to listen to the RPi in order to change settings which makes it less useful.
I also unsuccessfully tried to configure it using PySerial:

What would you suggest trying @stephen1874 ?
I bridged the 3V3 gap to make this compatible with a RPi, but the module doesn't seem to be able to receive messages from the Pi. I confirmed that the Pi's port works by setting up a loop-back and confirming that I saw echoed output from whatever I typed.

I am able to receive random CAN packets I'm sending from a separate Arduino:
However, it doesn't seem to want to listen to the RPi in order to change settings which makes it less useful.
I also unsuccessfully tried to configure it using PySerial:

What would you suggest trying @stephen1874 ?