La Jaderissima mkb
ubolakes·La_Jaderissima_mkb·kicad/keyboard.kicad_pcb
About the La Jaderissima mkb PCB
La Jaderissima mkb is an open source RP2040/RP2350 PCB design by ubolakes, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 372 × 147.5 mm, with 201 components from 10 distinct parts.
Its main chip is the Raspberry_Pi_Pico, from the RP2040/RP2350 family. By type, the board carries 100 switches, 100 diodes and 1 IC.
It belongs with the keyboards designs in this gallery.
From the project
Repository containing all the material for my open source mechanical keyboard
[comment]: <> (Author: Umberto Laghi) [comment]: <> (Contact: ul2509@gmail.com) [comment]: <> (Github: @ubolakes)
La Jaderissima is an open source mechanical keyboard designed with the intent to learn how to design a PCB. The repository contains all the materials necessary to build your own La Jaderissima at home.
Figure 1: The first prototype of La Jaderissima

Main components on the La Jaderissima mkb
La Jaderissima mkb bill of materials (BOM)
201 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Raspberry_Pi_Pico | Raspberry_Pi_Pico | U1 |
| 87 | Keyswitch | Hotswap_MX_1.00u | S1, S2, S3, S4, S5, S6, S7, S8 +79 |
| 1 | Keyswitch | Hotswap_MX_2.00u | S33 |
| 2 | Keyswitch | Hotswap_MX_1.50u | S38, S51 |
| 2 | Keyswitch | Hotswap_MX_2.00u_90deg | S55, S88 |
| 2 | Keyswitch | Hotswap_MX_1.75u | S56, S83 |
| 2 | Keyswitch | Hotswap_MX_2.25u | S68, S72 |
| 3 | Keyswitch | Hotswap_MX_1.25u | S89, S90, S91 |
| 1 | Keyswitch | Hotswap_MX_6.25u | S92 |
| 100 | Diode | Diode_DO-35 | D1, D2, D3, D4, D5, D6, D7, D8 +92 |
La Jaderissima mkb design files
The KiCad project lives in the ubolakes/La_Jaderissima_mkb repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/keyboard.kicad_pcb
- Schematickicad/keyboard.kicad_sch
La Jaderissima mkb: common questions
What microcontroller does the La Jaderissima mkb use?
The La Jaderissima mkb is built around the Raspberry_Pi_Pico, from the RP2040/RP2350 family.
How big is the La Jaderissima mkb PCB?
The La Jaderissima mkb measures 372 × 147.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the La Jaderissima mkb?
201 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the La Jaderissima mkb design files?
From the ubolakes/La_Jaderissima_mkb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the La Jaderissima mkb design in my own project?
Yes, under the terms of its Apache-2.0 license, which ubolakes chose for the repository.
Can I test firmware for the La Jaderissima mkb without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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