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Question Problems with CAN on a BTT Pi with U2C Module and BTT EBB36


New member
Printer Model
Voron 2.4
Hey Guys,

so I wanted to impement CAN-Bus on my Voron 2.4. As mentioned in the title, I'm using a BTT Pi and the fitting U2C Module.

I tried to follow the BTT guide but I couldn't find any uuids so I decided to reflash the firmware of both the EBB36 and the U2C Module but It still didn't fix the Issue I constantly get this error message:

Traceback (most recent call last):
File "/home/biqu/klipper/scripts/canbus_query.py", line 64, in <module>
File "/home/biqu/klipper/scripts/canbus_query.py", line 61, in main
File "/home/biqu/klipper/scripts/canbus_query.py", line 20, in query_unassigned
bus = can.interface.Bus(channel=canbus_iface, can_filters=filters,
File "/home/biqu/klippy-env/lib/python3.9/site-packages/can/interface.py", line 127, in __new__
return cls(channel, *args, **kwargs)
File "/home/biqu/klippy-env/lib/python3.9/site-packages/can/interfaces/socketcan/socketcan.py", line 594, in __init__
bind_socket(self.socket, channel)
File "/home/biqu/klippy-env/lib/python3.9/site-packages/can/interfaces/socketcan/socketcan.py", line 459, in bind_socket
OSError: [Errno 19] No such device

Would appreciate the help.

Kind Regards