HardLabs

Keyboard

ayaangrover·obsidian-one·pcb/keyboard.kicad_pcb

Keyboard PCB layout, top view — open source RP2040/RP2350 board by ayaangrover
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About the Keyboard PCB

Keyboard is an open source RP2040/RP2350 PCB design by ayaangrover, published on GitHub. It is a 2-layer board measuring 347.1 × 119.7 mm, with 169 components from 9 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. By type, the board carries 84 switches, 84 diodes and 1 module.

It belongs with the keyboards designs in this gallery.

From the project

A hotswappable mechanical keyboard PCB

The PCB uses MX-style switches with PCB mounting and hotswap. The MCU(microcontroller - the device that tells the computer whenever you press a key) is a basic Pi Pico RP2040/RP2350.

My current keyboard(Keychron K6 from #pyramid-scheme) has no function key row, and requires an uncomfortable combo to pause music. To fix this, I made Obsidian One which has the extra row.

Keyboard, from the project README
From the project README

Main components on the Keyboard

RaspberryPi_Pico

Keyboard bill of materials (BOM)

169 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RaspberryPi_Pico
A1
73
Keyswitch
S1, S2, S3, S4, S5, S6, S7, S8 +65
1
Keyswitch
S30
2
Keyswitch
S31, S45
2
Keyswitch
S47, S72
2
Keyswitch
S59, S60
3
Keyswitch
S75, S76, S77
1
Keyswitch
S82
84
Diode
D1, D2, D3, D4, D5, D6, D7, D8 +76

Keyboard design files

The KiCad project lives in the ayaangrover/obsidian-one repository on GitHub; these links point at the commit this page was built from.

Keyboard: common questions

What microcontroller does the Keyboard use?

The Keyboard is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Keyboard PCB?

The Keyboard measures 347.1 × 119.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard?

169 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Keyboard design files?

From the ayaangrover/obsidian-one repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Keyboard design in my own project?

The repository has no license, so all rights stay with ayaangrover. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Keyboard 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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