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  • fully_defined
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18 Dec 2024 19:00 - 18 Dec 2024 21:47
Replied by fully_defined on topic Rotary Selector Switches & Resistors

Rotary Selector Switches & Resistors

Category: General LinuxCNC Questions

Here's a 4 --> 2 diode encoder with polarity adjusted
for 7I73 inputs that have built-in pullup resistors
(so read high if unconnected)

Note that mux_generic has built in debouncing so the capacitors should not be needed if you use mux_generic to select jog increments etc.
 


Again, thank you so much for including this schematic! It helped to explain quite a lot, but after poking around on Google I could not find an existing product that does this. It seems weird that such a thing wouldn't exist, so maybe this will be my first electronics CAD project, to create a PCB!

If anyone reading this knows where these products already exist, please comment below!

As an aside, I have never had to test diodes before, so this was a learning experience in other ways. Without putting together a breadboard and trying it out, I wouldn't have had a reason to look into it.

I created this graphic to illustrate the function of a Mux8 switch (as I understand it today, which could be wrong), using a 12-position 1-pole switch and twelve diodes to output three bits. I decided to ignore 9-12, since it would require another bit.
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  • timko307
  • timko307
18 Dec 2024 18:05
Advantech industrial pc question was created by timko307

Advantech industrial pc question

Category: Computers and Hardware

I found this on eebay. From what I've learned this should be very suitable for Linuxcnc.

Advantech Micro Computer AIMC-2000J-HDA1E Industrial PC 8GB 128GB Celeron J1900    $99.99 free shipping
Can't find any documentation on the Advantech website.

Anybody have experience with these units.

Thanks
  • PatJac
  • PatJac
18 Dec 2024 17:43
Replied by PatJac on topic Real-Time Kernel with Orange Pi 4 LTS

Real-Time Kernel with Orange Pi 4 LTS

Category: General LinuxCNC Questions

Did succeed compiling armbian minimal img with a patch 6.12.5 rt preempt , installed cinnamon and linuxcnc .. oh , sh!t ,forgot to patch it rt-preempt_FULL.. my opinion on compiling did not change , it just add more my already bowing respects for developpers .
  • Guytou
  • Guytou
18 Dec 2024 15:37
Replied by Guytou on topic QtDragon

QtDragon

Category: General LinuxCNC Questions

Thanks!
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