Colette

transdryad·Colette·pcb/Colette.kicad_pcb

About the Colette PCB

Colette is an open source RP2040/RP2350 PCB design by transdryad, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 293.8 × 110.8 mm, with 120 components from 5 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 58 switches, 58 diodes, 2 ICs and 2 connectors.

It belongs with the keyboards designs in this gallery.

From the project

a split keyboard from hack clubs's hackpad/board v2

A keyboard designed to be ergonomic, clean, convenient, maintainable, and versatile. It is optimized for English, but can type every character supported by the US International layout (though it's not followed or fully required for basic usage.) By default, it uses Colemak Mod-DH with a few changes to punctuation. It's split, obviously.

I made this keyboard to get more experience building hardware and enable a more cohesive coding environment. I also wanted it to be good at typing text as well and have support for similar languages to english like French, Spanish, and German.

Colette, from the project README — From the project README

Main components on the Colette

Pico

Colette bill of materials (BOM)

120 components, 5 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
2	Pico	RaspberryPi_Pico_Common_THT	U1, U2
2	AudioJack3	Jack_3.5mm_CUI_SJ1-3523N_Horizontal	J1, J2
56	SW_Push	SW_Cherry_MX_1.00u_PCB	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +48
2	SW_Push	SW_Cherry_MX_2.00u_PCB	SW29, SW-25
58	1N4148	D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2, D3, D4, D5, D6, D7, D8 +50

Colette design files

The KiCad project lives in the transdryad/Colette repository on GitHub; these links point at the commit this page was built from.

Colette: common questions

What microcontroller does the Colette use?

The Colette is built around the Pico, from the RP2040/RP2350 family.

How big is the Colette PCB?

The Colette measures 293.8 × 110.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Colette?

120 components, from 5 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 Colette design files?

From the transdryad/Colette 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 Colette design in my own project?

Yes, under the terms of its GPL-3.0 license, which transdryad chose for the repository.

Can I test firmware for the Colette 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.