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I have everything I need to add more USBs and a fan to the CM3 but as long as I was taking it back apart, I'd like to add a second set of trigger buttons and a hotkey button through the unused GPIO pins. As far as I can tell, I just wire a button between an unused pin and ground. **Please correct me if I'm wrong** The part I need help with is coding. I am not software savvy at all. Could someone please provide instructions on modifying the software to add three more buttons? Also, if there are preferred pins to wire to. Thank you so much! I will post pictures of the final build.
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Interested in adding two additional shoulder (trigger) buttons also.
Nothing fancy, just similar to the X/Y 'without cover' buttons, but at the back. Would like to know how!
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No. You can’t just add extra buttons at the end like that. If I recall correctly the -20 was the hotkey, so you could just edit that. The other ones, you would have to edit the source code and recompile it to add more buttons.
Maybe at some point I could edit the code so that you could just put more values on that line. I don’t know when I would get to that though.