Duet 1LC Toolboard Compatibility

cardoc · February 5, 2026, 4:41am

See Here:

config/sample-duet3-1lc.cfg

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          # This file contains common pin mappings for the Duet3 1LC. To use
          # this config, the firmware should be compiled for the SAMC21G18 with:
          # Bootloader offset of "No Bootloader"
          # Clock Reference of "25 Mhz crystal" if the board version is v1.1 or later
          # Clock Reference of "12 Mhz crystal" if the board version is v1.0 or earlier
          # Communication interface of "CAN bus (on PA25/PA24)"
          
          # To flash the board use a debugger, or use a raspberry pi and follow
          # the instructions at docs/Bootloaders.md for the SAMC21. You may
          # supply power to the 1LC by connecting the 3.3v rail on the Pi to the
          # 5v input of the SWD header on the 1LC.
          
          # See docs/Config_Reference.md for a description of parameters.

github.com/Klipper3d/klipper

config/generic-duet3-mini.cfg?utm_source=copilot.com

master

# This file contains common pin mappings for the Duet3 Mini 5+. To use
# this config, the firmware should be compiled for the SAME54P20 with
# a "25Mhz crystal", "16KiB bootloader", and USB communication.

# To flash the board, double tap the board's reset button to enter the
# bootloader and then run: make flash FLASH_DEVICE=/dev/ttyACM0

# See docs/Config_Reference.md for a description of parameters.


# Pins for reference:
# Driver Step Pins - 0:PC26, 1:PC25, 2:PC24, 3:PC19, 4:PC16, 5:PC30, 6:PC18
# Driver Dir pins - 0:PB3, 1:PB29, 2:PB28, 3:PD20, 4:PD21, 5:PB0, 6:PA27
# Driver Enable - !PC28
# Uart addresses - 0:0 1:1 2:2 3:3 4:!0 5:!1 6:!2 | "!" is for inverted select pin
# Thermistor Pins - T0:PC0, T1:PC1, T2:PC2
# Vssa Sense:PB4 | Vref Sense:PB5
# Current Sense resistor for drivers - .076ohm
# SPI lines:{PD11, PC7} -> Shared SerCom#7, SPIMosi:PC12, SPIMiso:PC15, SPISCLK:PC13
# Vin Monitor:PC3, uses 11:1 voltage divider

This file has been truncated. show original

Both configuration files include pin mapings.

While I have zero personal expirence with Duet boards, I’m 95% sure that klipper firmware running on a Duet 3 Mini 5+ will expose the CAN transceiver to Linux as a USB to CAN converter exactly like BTT Manta boards work. YMMV

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Duet 1LC Toolboard Compatibility

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