More info here: http://www.40percent.club/2017/09/25.html BOM (per side) 25 1n4148 diodes 25 MX compatible PCB mount switches 1 TRRS Jack Sparkfun PRT-12639 1 Pro Micro 5v 2 12mm headers or 1 24pin machined pin wide socket 1 5.2mm SMT switch (RESET) https://lcsc.com/product-detail/Tactile-Switches_5-2mm-5-2mm_C92584.html [How to order PCBs from gerber files](http://www.40percent.club/2017/03/ordering-pcb.html) EasyEDA ordering info: PCB ![25](25.png) Gerber: 25.zip 95.3mm Max* 95.3mm Max; Layers: 2; PCB Thickness: 1.6mm; PCB Qty.: 10; PCB Color: Green; Surface Finish: HASL; Copper Weight: 1; Panelized PCBs: 1 Files released under https://creativecommons.org/licenses/by-nc-sa/4.0/ ![Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License](https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png)