Can the Duet Expansion Breakout Board be connected to DUET 3?
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Can the Duet Expansion Breakout Board be connected to DUET 3?
Or can you only connect to DUET 2? Is there a separate duet 3 expansion board?
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duet 2 expansion board is not compatible with duet 3.
duet3 uses can-bus for expansion
duet 3 expansion board is here https://www.duet3d.com/Duet3Expansion3HC -
as above, but there are also the 1LC tool board and for weird custom stuff you can also use the development board linked below. dc42 has written a bootloader and firmware for it to act as an expansion board