Read and View Mainboard ID

Important Notes

This tutorial is only applicable to the Mainboard ID reading and viewing methods.
If you are using a Toolboard, please refer to the corresponding product's ID search tutorial.
If you are using a Toolboard, you can directly click the button below to jump:
Connect Toolboard
If you have flashed the USB firmware, please refer to the USB-ID Retrieval section.
If you have flashed the USB Bridge firmware, please refer to the CAN-ID Retrieval section.

USB ID Retrieval
CANBus UUID Retrieval

Searching for USB ID

Open your browser, enter the IP address of the host computer in the address bar. For example, if the host IP is 192.168.101.179, type it in and press Enter.

After accessing the host's WEB interface, find the following in the configuration options on the left sidebar:

For fluidd: Click on {…} to enter, then find printer.cfg.

For mainsail: Click on Machine to enter, then find printer.cfg.

Click on printer.cfg to enter, then click on DEVICES in the top right corner.

Click on SERIAL, then refresh.

Refresh in fluidd.

Refresh in mainsail.

Copy the ID. Click on the indicated arrow to copy.

In fluidd, ensure ttyACM exists and that Path by ID is present. This is the USB ID.

In mainsail, ensure ttyACM exists and that Path by ID is present. This is the USB ID.

Filling in the USB ID

Danger

The ID shown below is an example and CANNOT be used !!!!

serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0

Close the DEVICES window and fill in the ID.

Important

In the configuration file, change:

[mcu] 
serial: /tmp/klipper_host_mcu

[mcu host] 
serial: /tmp/klipper_host_mcu

And add:

[mcu]
serial: <Replace this with the ID you just queried>

Find [MCU] in fluidd.

Find [MCU] in mainsail.

Fill the ID into the configuration.

Tip

After filling in the ID, click SAVE & RESTART in the top right corner.

If Klipper prompts ADC out of range, this is normal. Connect the heated bed and thermistor to the mainboard, configure the thermistor pins for the hotend and heated bed, then save and restart.

Danger

Note: All IDs appearing in this document are examples. The actual ID for each mainboard is different. Please fill in the ID you actually obtained.

Search for CAN ID

Open a browser, enter the IP address of the host computer in the address bar. For example, if the host IP is 192.168.101.179, simply type it in and press Enter.

Open the WEB interface of the host computer. In the configuration options on the left sidebar, find:

For fluidd: {…}, click to enter, then find printer.cfg

For mainsail: Machine, click to enter, then find printer.cfg

Click printer.cfg to enter, then click DEVICES in the upper right corner.

Loading...
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Click CAN, then refresh.
Refresh in fluidd

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Refresh in mainsail

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Copy the ID. Click the indicated arrow to copy.

In fluidd, ensure the first arrow points to Klipper. If yes, click the arrow on the right to copy.

In mainsail, ensure the first arrow points to Klipper. If yes, click the arrow on the right to copy.

Fill in the CAN ID

Close DEVICES and fill in the ID.

Note

In the configuration file, change:

[mcu]  
serial: /tmp/klipper_host_mcu  

to:

[mcu host]  
serial: /tmp/klipper_host_mcu  

Add:

[mcu]  
canbus_uuid: <Replace here with the ID you just queried>  

Find [MCU] in fluidd

Find [MCU] in mainsail

Fill the ID into the configuration.

Tip

After filling in the ID, click SAVE & RESTART in the upper right corner.

If Klipper prompts ADC out of range, this is normal. Connect the heated bed and thermistor to the mainboard, configure the thermistor pins for the nozzle and heated bed, then save and restart.

Danger

Note: All IDs appearing in this document are examples. The actual ID for each mainboard is different. Please fill in the ID you actually obtained.

Searching for USB ID​

Filling in the USB ID​

Search for CAN ID​

Fill in the CAN ID​

Searching for USB ID

Filling in the USB ID

Search for CAN ID

Fill in the CAN ID