HardLabs

Keyboard1

rubberducky-png·keyboard1·KiCad/keebboard.kicad_pcb

Keyboard1 PCB layout, top view — open source RP2040/RP2350 board by rubberducky-png

About the Keyboard1 PCB

Keyboard1 is an open source RP2040/RP2350 PCB design by rubberducky-png, published on GitHub. It is a 2-layer board measuring 313.3 × 154.7 mm, with 172 components from 18 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the RN4871-V_RM118. By type, the board carries 85 switches, 82 diodes, 2 resistors, 1 IC, 1 module and 1 capacitor.

It belongs with the keyboards designs in this gallery.

From the project

A fully custom 81-key mechanical keyboard designed by me, including the PCB, case, firmware, and assembly. This project was built to learn the complete keyboard design process while creating a functional keyboard.

A fully custom 81-key mechanical keyboard designed by me, including the PCB, case, firmware, and assembly. This project was built to learn the complete keyboard design process while creating a functional keyboard.

- Custom PCB designed from scratch - Hot-swappable MX-compatible switches - QMK firmware support - Screw-in stabilizers - 3D printed two-piece tray mount case - 8° typing angle for improved ergonomics - bluetooth capabilites (connect to another screen while plugged into one)

Keyboard1, from the project README
From the project README

Main components on the Keyboard1

RN4871-V_RM118RaspberryPi_Pico

Keyboard1 bill of materials (BOM)

172 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RN4871-V_RM118
U1
1
RaspberryPi_Pico
A1
1
MX_stab
S1
2
MX_stab
S2, S4
1
MX_stab
S3
67
SW_Push_45deg
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +59
1
SW_Push_45deg
SW28
2
SW_Push_45deg
SW30, SW78
3
SW_Push_45deg
SW43, SW45, SW70
2
SW_Push_45deg
SW57, SW59
4
SW_Push_45deg
SW73, SW74, SW75, SW77
1
SW_Push_45deg
SW76
1
RotaryEncoder_Switch
SW82
81
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +73
1
LED
D82
1
100nF
C1
1
330R
R1
1
10k
R2

Keyboard1 design files

The KiCad project lives in the rubberducky-png/keyboard1 repository on GitHub; these links point at the commit this page was built from.

Keyboard1: common questions

What microcontroller does the Keyboard1 use?

The Keyboard1 is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Keyboard1 PCB?

The Keyboard1 measures 313.3 × 154.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard1?

172 components, from 18 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 Keyboard1 design files?

From the rubberducky-png/keyboard1 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 Keyboard1 design in my own project?

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

Can I test firmware for the Keyboard1 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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