HardLabs

Ergodonk pico

JellyTitan·ErgoDonk·ergodonk_pico 2/ergodonk_pico.kicad_pcb

Ergodonk pico PCB layout, top view — open source RP2040/RP2350 board by JellyTitan

About the Ergodonk pico PCB

Ergodonk pico is an open source RP2040/RP2350 PCB design by JellyTitan, published on GitHub under the MIT license. It is a 2-layer board measuring 15 × 15 mm, with 326 components from 17 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 4 connectors, 2 ICs, 2 diodes, 1 transistor, 1 speaker and 1 switch.

It belongs with the keyboards designs in this gallery.

From the project

ErgoDox variant using standard SA keycaps, FDM case, and blackpill MCU

Ergodonk pico, from the project README
From the project README

Main components on the Ergodonk pico

Pico

Ergodonk pico bill of materials (BOM)

326 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
Pico
U1, U2
1
TIP120
Q1
3
AudioJack4
J1, J3, J4
1
Pimaroni Trackball
J2
103
D
D_LH_00, D_LH_01, D_LH_02, D_LH_03, D_LH_04, D_LH_05, D_LH_06, D_LH_07 +95
1
MUR340S
D_SOL_1
2
Tenting puck mount
H14, H15
1
Conn_01x02_Female
J_SOL_1
1
AST1109MLTRQ_MAL
LS1
103
SK6812MINI-E
L_LH_00, L_LH_1, L_LH_2, L_LH_3, L_LH_4, L_LH_5, L_LH_6, L_LH_7 +95
1
Solenoid
S1
2
RotaryEncoder_Switch
SWLH_ROT1, SWRH_ROT1
97
SW_PUSH
SW_LH_00, SW_LH_01, SW_LH_02, SW_LH_03, SW_LH_04, SW_LH_05, SW_LH_06, SW_LH_07 +89
4
SW_PUSH
SW_LH_51, SW_LH_52, SW_RH_51, SW_RH_52
1
OLED
OL1
2
D
D1, D102
1
1k
R1

Ergodonk pico design files

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

Ergodonk pico: common questions

What microcontroller does the Ergodonk pico use?

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

How big is the Ergodonk pico PCB?

The Ergodonk pico measures 15 × 15 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ergodonk pico?

326 components, from 17 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 Ergodonk pico design files?

From the JellyTitan/ErgoDonk 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 Ergodonk pico design in my own project?

Yes, under the terms of its MIT license, which JellyTitan chose for the repository.

Can I test firmware for the Ergodonk pico 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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