Colon3board

ading2210·colon3board·PCB/hackboard.kicad_pcb

About the Colon3board PCB

Colon3board is an open source RP2040/RP2350 PCB design by ading2210, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 436.6 × 131.8 mm, with 211 components from 13 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the MCP23008-xP. By type, the board carries 1 IC, 1 module and 1 connector.

It belongs with the keyboards and displays & leds designs in this gallery.

From the project

A custom designed mechanical keyboard.

This is a custom designed mechanical keyboard, created for the the Hackpad event. It has a full sized 104 key layout, and a built in OLED display.

I designed this so I could get more practice with designing PCBs in KiCad and with modeling larger parts in Fusion 360. Also, I get to have a free keyboard in the end thanks to the grant from Hack Club.

This project is licensed under the GNU GPL v3.

Colon3board, from the project README — From the project README

Main components on the Colon3board

MCP23008-xP RaspberryPi_Pico

Colon3board bill of materials (BOM)

211 components, 13 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	MCP23008-xP	DIP-18_W7.62mm	U1
1	RaspberryPi_Pico	RaspberryPi_Pico_Common_Unspecified	A1
1	Conn_01x04	PinSocket_1x04_P2.54mm_Vertical_OLED	J1
104	D	D_DO-35_SOD27_P7.62mm_Horizontal	D_0, D_1, D_2, D_3, D_4, D_5, D_6, D_7 +96
86	KEYSW	SW_Cherry_MX_1.00u_PCB	K_0, K_1, K_2, K_3, K_4, K_5, K_6, K_7 +78
2	KEYSW	SW_Cherry_MX_2.00u_PCB	K_29, K_102
2	KEYSW	SW_Cherry_MX_1.50u_PCB	K_37, K_50
2	KEYSW	SW_Cherry_MX_2.00u_PCB_r1	K_57, K_90
1	KEYSW	SW_Cherry_MX_1.75u_PCB	K_58
2	KEYSW	SW_Cherry_MX_2.25u_PCB	K_70, K_74
1	KEYSW	SW_Cherry_MX_2.75u_PCB	K_85
7	KEYSW	SW_Cherry_MX_1.25u_PCB	K_91, K_92, K_93, K_95, K_96, K_97, K_98
1	KEYSW	SW_Cherry_MX_6.25u_PCB	K_94

Colon3board design files

The KiCad project lives in the ading2210/colon3board repository on GitHub; these links point at the commit this page was built from.

Colon3board: common questions

What microcontroller does the Colon3board use?

The Colon3board is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Colon3board PCB?

The Colon3board measures 436.6 × 131.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Colon3board?

211 components, from 13 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 Colon3board design files?

From the ading2210/colon3board 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 Colon3board design in my own project?

Yes, under the terms of its GPL-3.0 license, which ading2210 chose for the repository.

Can I test firmware for the Colon3board 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.