

Form uno
Gasket mounted 5x12 column staggered keyboard
- Size
- 272.4 × 122.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 123
- Nets
- 83
- Pads
- 821
- Tracks, vias
- 331, 12
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Aug 2024
- Updated
- 2 Sep 2024
Overview
Form uno is an open-source printed circuit board by phamfoo, from the phamfoo/form-uno repository on GitHub, published under the MIT licence. It is a 2-layer board of 272.4 × 122.9 mm with 123 parts on 83 nets, routed with 331 tracks and 12 vias.
It is built around the RP2040-ZERO. Its parts include 62 switches, 60 diodes and 1 IC. It belongs with the keyboards and input boards and the RP2040 boards of this library.
Main components
1README
README.mdForm Uno
Gasket mounted 5x12 column staggered keyboard

Introduction
I designed this board with a few goals in mind:
Ergonomic
The layout is based on the corne/cornelius by foostan, with some adjustments:
- Unsplit.
- Number row.
- Options for dedicated arrow keys.
Fully featured
It also comes with the neat features that you'd find in custom mechanical keyboards:
- Gasket-mounted.
- Hotswap PCB + daughterboard.
- Clean and minimal design.
Easy to build
- Powered by an RP2040 Tiny and all the other parts can be easily sourced.
- No tiny SMD components required!
Build guide
See build
Thanks
Parts
123| Qty | Value | Footprint | References |
|---|---|---|---|
| 62 | SW_Push | marbastlib-mx:SW_MX_HS_CPG151101S11_1u | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +46 |
| 60 | D | kbd:D3_TH_SMD_v2 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +44 |
| 1 | rp2040-zero | rp2040-tiny:rp2040-tiny | U1 |
Questions
How big is the Form uno PCB?
It measures 272.4 × 122.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Form uno use?
123 parts, built around the RP2040-ZERO. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Form uno KiCad files?
From the phamfoo/form-uno repository on GitHub, at the commit this page was made from: the board is src/pcb/form-uno/form-uno.kicad_pcb and its schematic src/pcb/form-uno/form-uno.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Form uno design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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