Compact Mountable Arduino Pro Micro Housing

thingiverse

I made this to house an Arduino Pro Micro that I'm using to run a couple of arcade buttons as system/volume controls in my cabinet. This was a one-off, but I realized that it's actually got some general-purpose applicability, if you need to stick a little microcontroller somewhere with a bunch of wires hanging out of it. Basically, this is an exact fit for an Arduino Pro Micro (https://www.sparkfun.com/products/12640), with a cutout at the far end of the board to pass some cables through, with a spot for a 5mm-wide zip tie for strain relief. It also provides two 3mm mounting holes on tabs on either side, so you can either use M3 screws/bolts, or #4 wood screws to mount it to something. I've soldered my wiring directly to the board, but there should be room inside for headers. You might have to cut the pins on the back of the board _very_ close to flush, if you're using headers, though, because the board is really intended to clip right down against the bottom of the case. The cap is friction-fit, but if you find it's too loose, you can always just drop a bead of superglue on the lip to hold it in place; as long as you don't go too crazy, you can always run an exacto knife through it if you need to get back inside. Feel free to remix this however you want; the original STEP file is included. Like I said, this was a throwaway for exactly one thing I needed, so if someone else can get some use out of it, then great!