ErgoSHIFT
mizma·ergoSHIFT·hardware-rev1/design_data/ergoSHIFT-rev1-kicad/ergoSHIFT-rev1-kicad.kicad_pcb
About the ErgoSHIFT PCB
ErgoSHIFT is an open source RP2040/RP2350 PCB design by mizma, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 233.2 × 147.7 mm, with 20 components from 4 distinct parts.
Its main chip is the RP2040, from the RP2040/RP2350 family. By type, the board carries 18 switches and 1 IC.
It belongs with the keyboards designs in this gallery.
From the project
11 button leverless controller with shifted home position
ergoSHIFT rev1 ========================================================================
This is rev1 of the ergoSHIFT. In this version an Arduino Pro Micro is soldered onto the main PCB.
acrylic shell For Standard Layout Layers 1, 2, 4: 3mm Layers 3, 5: 2mm For Reverse Layout (Left handed) Layers 1, 2, 3: 3mm Layers 4, 5: 2mm the ergoSHIFT PCB Arduino Pro Micro SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) 15x Kailh low profile (choc v1) switches of your choice I use Kailh Choc v1 Red Pro (Linear and low activation force: 35±10gf with actuation travel: 1.5±0.5mm) Light Blue (gChoc) can be…

Main components on the ErgoSHIFT
ErgoSHIFT bill of materials (BOM)
20 components, 4 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RP2040 ProMicro | ProMicro | U1 |
| 3 | SW_Push | SW_PUSH_6mm_H8.5mm | SW1, SW2, SW3 |
| 15 | SW_Push | Kailh_socket_PG1350_optional_reversible | SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11 +7 |
| 1 | SW_Push | SW_Tactile_Yushakobo 3x6x4.3mm | SW_RST1 |
ErgoSHIFT design files
The KiCad project lives in the mizma/ergoSHIFT repository on GitHub; these links point at the commit this page was built from.
ErgoSHIFT: common questions
What microcontroller does the ErgoSHIFT use?
The ErgoSHIFT is built around the RP2040, from the RP2040/RP2350 family.
How big is the ErgoSHIFT PCB?
The ErgoSHIFT measures 233.2 × 147.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ErgoSHIFT?
20 components, from 4 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 ErgoSHIFT design files?
From the mizma/ergoSHIFT 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 ErgoSHIFT design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which mizma chose for the repository.
Can I test firmware for the ErgoSHIFT 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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