More info here: http://www.40percent.club/2018/07/half-n-half.html BOM (per side) 22 1n4148 diodes 22 MX compatible PCB mount switches 1 TRRS Jack Sparkfun PRT-12639 1 Pro Micro 5v 2 12pin 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 1 2U PCB mount stabilizer [How to order PCBs from gerber files](http://www.40percent.club/2017/03/ordering-pcb.html) EasyEDA ordering info: Half Half ![halfhalf](halfhalf.png) Gerber: halfhalf.zip Layers:2 Dimension: 81mm*138mm PCB Qty:10 PCB Thickness:1.6 PCB Color:Green Surface Finish:HASL(with lead) Copper Weight: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)