J2 (the Tag-Connect ISP headers) and MX1-MX68 (the key switches) are not included.
Since the PCB is reversible, the BOM is split up between the left and right halves. To build a full keyboard, you need the components for both halves.
| Reference | Quantity | Value | Link |
|---|---|---|---|
| D1-D34 | 34 | 1N4148 | https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/1N4148W-RHG/7357065 |
| J4 | 1 | SJ2-35954-SMT-TR | https://www.digikey.com/en/products/detail/cui-devices/SJ2-35954A-SMT-TR/6619576 |
| U2 | 1 | MCP23018-E/SS | https://www.digikey.com/en/products/detail/microchip-technology/MCP23018-E-SS/1999506 |