On 10/7/25 18:42, Sam Sokolik wrote:
My 2 cents..
The ethernet adaptor is through usb-c - so would not work with mesa
ethernet cards.. Maybe spi?
it does have a stm32 on board.. Could it run Remora?
but being debian based - I assume you could just apt-get the rt-preempt
kernel?
sam
On Tue, Oct 7, 2025 at 3:34 PM Roberto Sassoli <[email protected]>
wrote:
hi
I've seen the new Arduino board, and the official page says it's
Linux-compatible and oriented towards *real-time control*. Could it be a
valid system to use for *LinuxCNC*? Or is the technology still *too
immature/unproven*?
https://docs.arduino.cc/hardware/uno-q/#features
Wearing my CET hat here.
While the core is the similar to most of the pi clones, it looks like it
will need the 4G memory expansion to load a *nix like os. And we'ed have
to do a fairly complete i/o redesign, raising the cost up into the pi
clone realm. Even with the pi's, which run on bug sneeze power, 22
Watts including monitor, I/O is the major cost, not the $80 pi. The
interfacing I used a decade back, then ran north of $200 for a 7i90HD
and three 7i42TA's. I started with a rpi3b, but it occasionally
stuttered, talking to the 7i90HD at 42 megabaud, and gettiing replies at
250 megabaud over SPI. That speed did not change when I replaced the
rpi3b with an rpi4b, and the rpi4b hasn't missed a lick since. What I
need to replace the power pig Dell's, is a $100 SPI interface that still
gives 72 gpio pins to replace the 1 5i25 & 1 7t76,+ a $20 parport card
I've hacked to raise the input bandwidth about 100x. But I'm nearly out
of I/O with that combo. For the Sheldon lathe, I still have about 30
i/o pins unused. If I ever trip over an Emco tool changer, I'll own
it. But they are about like hens teeth. Anybody have one laying
around? Lets dicker.
ciao
Roberto
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Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Don't poison our oceans, interdict drugs at the src.
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