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Ergodonk simple zero

JellyTitan·ErgoDonk·ergodonk_simple_zero/ergodonk_simple_zero.kicad_pcb

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

About the Ergodonk simple zero PCB

Ergodonk simple zero is an open source RP2040/RP2350 PCB design by JellyTitan, published on GitHub under the MIT license. It is a 2-layer board measuring 216.6 × 155.6 mm, with 146 components from 20 distinct parts.

Its main chip is the rp2040-zero, from the RP2040/RP2350 family. By type, the board carries 54 switches, 54 diodes, 6 jumpers, 1 IC, 1 transistor and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

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

Ergodonk simple zero, from the project README
From the project README

Main components on the Ergodonk simple zero

rp2040-zero

Ergodonk simple zero bill of materials (BOM)

146 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
rp2040-zero
MCU11
1
TIP120
Q1
1
4PIN
J11
1
MUR340S
D_SOL_1
10
MountingHole
H1, H2, H3, H4, H5, H6, H7, H8 +2
15
MountingHole
H11, H12, H13, H14, H15, H16, H17, H18 +7
6
SolderJumper_3_Open
JP10, JP11, JP12, JP13, JP14, JP15
1
Conn_01x02_Female
J_SOL_1
1
Solenoid
S1
45
SW_PUSH_LED
SW0, SW1, SW2, SW3, SW4, SW5, SW6, SW7 +37
1
SW_PUSH_LED
SW08_RH10
2
SW_PUSH_LED
SW18_RH10, SW38_RH10
1
SW_PUSH_LED
SW27
1
SW_PUSH_LED
SW28_RH10
1
SW_PUSH_LED
SW37
1
SW_PUSH_LED
SW47
1
SW_PUSH_LED
SW48_RH10
1
RotaryEncoder_Switch
SWLH_ROT1
54
D
D0, D1, D2, D3, D4, D5, D6, D7 +46
1
1k
R2

Ergodonk simple zero 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 simple zero: common questions

What microcontroller does the Ergodonk simple zero use?

The Ergodonk simple zero is built around the rp2040-zero, from the RP2040/RP2350 family.

How big is the Ergodonk simple zero PCB?

The Ergodonk simple zero measures 216.6 × 155.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ergodonk simple zero?

146 components, from 20 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 simple zero 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 simple zero 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 simple zero 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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