PCB files and case STL for a pro-micro compatible ISO enter single key macropad

Build guide: https://imgur.com/a/puC9ops

For the adventurous: the switch is connected to pro micro pin F4.

FAQ:

Can it do RGB? Not easily. You can wire RGB strips to the spare pro micro pins, perhaps.

Can I turn the LED off? Yes, unplug the isopad :D

Is it in main QMK? No, at present just the precompiled VIA hex is offered.