Does the xBuddy Board have any gCode-controllable GPIO pins?
 
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Does the xBuddy Board have any gCode-controllable GPIO pins?  

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Zappes
(@zappes)
Reputable Member
Does the xBuddy Board have any gCode-controllable GPIO pins?

OK, the question might be a tad strange, so let me give some context: I have a Beagle Cam V2 in my enclosure and I sometime do time-lapse videos with it. Now I had the idea that it would be nifty if I could turn the lights in my enclosure on only for the time when a picture is taken at the layer changes. It would be quite easy to build a little circuit that controls my LED strips - but I'd need some kind of a signal to actually trigger that circuit.

If there were some GPIO pins on the board that can be controlled with gCode, I could simply insert the proper code into the layer change code and my idea could actually work - but I have no idea if this is an actual possibility with the hardware. I assume that _something_ must be there as the MMU needs to communicate with the mainboard in some way, but I have no clue how that is implemented.

Does anybody know if a feature like that exists and how it is used?

My models on Printables
Napsal : 10/11/2023 8:18 am
Fil4ment
(@fil4ment)
Trusted Member
RE: Does the xBuddy Board have any gCode-controllable GPIO pins?

Short version: Yes, but we don't know how to address them, yet. If you can poke at the devs, and get them to respond, that would be fantastic.

https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/xbuddy-board-gpio/

As soon as we have access to the GPIO that is available, there are apparently quite a few projects that will take off

Napsal : 31/12/2023 3:48 pm
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Fil4ment
(@fil4ment)
Trusted Member
RE: Does the xBuddy Board have any gCode-controllable GPIO pins?

Just FYI, there's been an update to the above thread, with i2c control being implemented in a recent merge

Napsal : 10/05/2024 4:58 pm
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