USB wired custom button
thingiverse
Edit : 1 version for PCB 1mm and 1 version for 1.6mm thick A little button with Arduino Pro Micro to use it as a keyboard key or set of keys Here is the button I used : https://www.ebay.fr/itm/12mm-metal-rond-bouton-poussoir-Interrupteur-momentane-noir-blanc-red-vert-jaune/123157518204?hash=item1cacc2977c:m:mAkIWaxKl1Kd84H1oPFQZbg:rk:43:pf:0
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