Duet3 with RPI400 as SBC
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As the title says, I would like to know if someone has tested a Duet3 mainboard with a Raspberry PI400 (that thing with keyboard and better cooling inside) as a SBC? The RPI400 has the same 40-pin connector as a regular Raspi 4 and I use one as a Linux frontend for the DWC browser with my Duet2 Wifi and this works just fine. But now I am upgrading to the Duet3 and am just considering to reuse as much as possible.
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If it has the same GPIO pins available I don't see why not.
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Hi @hlwerschner, did you have any success connecting a RPI400 to a Duet3 mainboard?
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@hlwerschner @s0lstice That should work as long as the CPU supports the ARMv7 instruction set and it would certainly make it easier to maintain if the Linux distribution is based on Debian. You can find instructions for custom boards here.
PS: I just realized the RPI400 is just an addon for the regular Raspberry Pi, so you should not need to make any changes to the standard DuetPi image.
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Thanks @chrishamm. I now have a RPI400 working as the SBC with a Duet3 6HC, using an unchanged DuetPi image. It will be controlling a RatRig KillerBee CNC. I'm using a SunFounder 10.1" touchscreen, and the RPI400 is powered through the touchscreen, using only the screen's 12V PSU. I have version 1.01a of the Duet3 6HC, so its 5V is not used to supply the RPI400. So far I have tested a limit switch, and a stepper motor, using DWC, and all looks good.
