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 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

[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)