# How reference a canboard?

**URL:** <https://klipper.discourse.group/t/how-reference-a-canboard/4175>\
**Category:** General Discussion\
**Created:** [September 18, 2022, 10:20am UTC](https://klipper.discourse.group/t/how-reference-a-canboard/4175 "2022-09-18T10:20:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Peurif](https://avatars.discourse-cdn.com/v4/letter/p/c57346/32.png) [@Peurif](https://klipper.discourse.group/u/Peurif)\
**Post date:** [September 18, 2022, 10:20am UTC](https://klipper.discourse.group/t/how-reference-a-canboard/4175/1 "2022-09-18T10:20:22Z")

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### Basic Information:

Printer Model: Ratrig Vcore3  
 MCU / Printerboard: Octopus pro + EBB42(by can)  
 `klippy.log`  
[klippy.log](https://klipper.discourse.group/uploads/short-url/zulFq6ozlbGxpsgW1SLxnoTVv0z.log) (222.6 KB)

_Fill out above information and in all cases attach your_ `klippy.log` _file. Pasting your_ `printer.cfg` _is **not** needed_

### Describe your issue:

After some time and with the help of the forum users, I managed to install an EBB42 by CAN…

Now the next step, the configuration.

Before, when I had an SHT42 installed, and I wanted to refer to something connected to that board, I indicated it like this:

SHT42:pinx …

but the name SHT42 sounds like I chose it when I compiled the firmware with make menuconfig

But I don’t think I’ve seen any similar option, when you select that the connection is by CAN…

So the question is:

How do I refer to what I plug into the EBB42?

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<div class="post-metadata">

**Author:** ![Peurif](https://avatars.discourse-cdn.com/v4/letter/p/c57346/32.png) [@Peurif](https://klipper.discourse.group/u/Peurif)\
**Post date:** [September 18, 2022, 10:47am UTC](https://klipper.discourse.group/t/how-reference-a-canboard/4175/2 "2022-09-18T10:47:04Z")

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think i have it…

in start of config file of ebb

[mcu EBB42] #this is the name for reference in config  
canbus\_uuid: xxxxxxx # here the uuid find before

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**Author:** ![NAPCAL](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/napcal/32/1794_2.png) [@NAPCAL](https://klipper.discourse.group/u/NAPCAL)\
**Post date:** [September 19, 2022, 12:06am UTC](https://klipper.discourse.group/t/how-reference-a-canboard/4175/3 "2022-09-19T00:06:33Z")

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You can find the base configuration here.  
[EBB42 V1.0](https://github.com/bigtreetech/EBB/blob/master/EBB%20CAN%20V1.0%20(STM32F072)/sample-bigtreetech-ebb-canbus-v1.0.cfg)  
[EBB42 V1.1](https://github.com/bigtreetech/EBB/blob/master/EBB%20CAN%20V1.1%20(STM32G0B1)/sample-bigtreetech-ebb-canbus-v1.1.cfg)  
[EBB42 V1.2](https://github.com/bigtreetech/EBB/blob/master/EBB%20CAN%20V1.1%20(STM32G0B1)/sample-bigtreetech-ebb-canbus-v1.2.cfg)

Just add the include reference to the EBB42 configuration in your printer.cfg, just comment out the same sections in your printer.cfg that are provided in the EBB configuration.

If you need a very good pinout, you can find mine [here](https://www.dropbox.com/s/ffl4m7txx41ptyu/BigTreeTech%20EBB42%20connections%20information.pdf?dl=0)

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**Author:** ![EddyMI3D](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/eddymi3d/32/1981_2.png) [@EddyMI3D](https://klipper.discourse.group/u/EddyMI3D)\
**Post date:** [December 6, 2024, 8:06pm UTC](https://klipper.discourse.group/t/how-reference-a-canboard/4175/4 "2024-12-06T20:06:31Z")

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