BTT Canbus U2C v2.1 and EBB36

[3dKaosMonkey]

Trying to get canbus set up on Klipper and the BTT Canbus U2Cv2.1 and EBB36 boards.

Started trying to follow this guide "YES!! You CANBus Setup." on Youtube but didn't get pass the flashing of the board from canibale.io  --- said it flashed but when I power cycle the blue light stays on where it says the blue light should go off.

I then tried following TeachingTechs guide "Klipper CAN bus guide for Bigtreetech U2C and EBB boards" and got the board flashed but then after power cycle the blue light remains on.

Anyone here experience the same or know another guide or how to troubleshoot so I can move on in the setup process?

[Wanderer22]

Yes I have the very same problem, I have U2C v2.1 & Ebb36 v1.2, spent 3 weeks trying to figure it out, watched all videos + contacted it Biqu support. From my experience just Ignore blue light. With all 3 of my U2C, blue light is always on. My first U2C from Biqu was faulty, I bought 2nd U2C from local distributor and it works 1st time following Teaching Tech video. Blue light of my 3rd U2C (replacement from Biqu) is also always on.

If you use Euclid problem, I also had problem 24v Euclid probe, Euclid website says it works with 5v Canbus board, it works at the beginning but stops after a while. Currently I temporarily wire the probe direct to Btt Octopus 24v and no problem so far. I am waiting for PCB Klicky probe to arrive that you can change 24v to 5v.

[Joebus]

On 2/26/2023 at 6:39 PM, 3dKaosMonkey said:

Trying to get canbus set up on Klipper and the BTT Canbus U2Cv2.1 and EBB36 boards.

Started trying to follow this guide "YES!! You CANBus Setup." on Youtube but didn't get pass the flashing of the board from canibale.io  --- said it flashed but when I power cycle the blue light stays on where it says the blue light should go off.

I then tried following TeachingTechs guide "Klipper CAN bus guide for Bigtreetech U2C and EBB boards" and got the board flashed but then after power cycle the blue light remains on.

Anyone here experience the same or know another guide or how to troubleshoot so I can move on in the setup process?

Try this guide:  https://github.com/EricZimmerman/VoronTools/blob/main/EBB_CAN.md   It just works.

[3dKaosMonkey]

Yes  -  I had a Facebook user send me that and I got it working last week.   Indeed great instructions that just work.