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 check the USB-ID Acquisition section.
If you have flashed the USB Bridge firmware, please check the CAN-ID Acquisition section.

USB ID Acquisition
CANBus UUID Acquisition

Searching for USB 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, type it directly and press Enter.

Access the host's WEB interface. In the configuration options on the left sidebar, find:

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

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

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

Click SERIAL, then refresh.

Refresh in fluidd

Refresh in mainsail

Copy the ID. Click where indicated by the arrow to copy.

In fluidd, check if ttyAMC exists and ensure Path by ID is present. This is the USB ID.

In mainsail, check if ttyAMC exists and ensure Path by ID is present. This is the USB ID.

Filling in the USB ID

dangerous

The ID below is NOT usable!!!!

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

Close DEVICES and fill in the ID.

Important Notes

In the configuration file, change:

[mcu] 
serial: /tmp/klipper_host_mcu

[mcu host] 
serial: /tmp/klipper_host_mcu

And add:

[mcu]
serial: <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 top right corner.

If Klipper reports 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.

dangerous

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 CAN ID

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

Open the host's WEB interface, find in the configuration options in the left sidebar:

For fluidd: {…} , click into it to find printer.cfg

For mainsail: Machine, click into it to find printer.cfg

Click into printer.cfg, then click DEVICES in the top right corner.

Click CAN, then refresh.

Refresh in fluidd

Refresh in mainsail

Copy the ID, click where the arrow points to copy.

In fluidd, confirm if the first arrow points to Klipper. If yes, click the copy button indicated by the right arrow.

In mainsail, confirm if the first arrow points to Klipper. If yes, click the copy button indicated by the right arrow.

Filling in the CAN ID

Close DEVICES and fill in the ID.

Important Notes

In the configuration file, change:

[mcu] 
serial: /tmp/klipper_host_mcu

to:

[mcu host] 
serial: /tmp/klipper_host_mcu

Add:

[mcu]
canbus_uuid: <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.

dangerous

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​

Searching for CAN ID​

Filling in the CAN ID​

Searching for USB ID

Filling in the USB ID

Searching for CAN ID

Filling in the CAN ID