2 layers42 × 67 mm
2 layers247.6 × 76.2 mm
Unisplit orthosteno
petercpark/The_Uni73A uni-board split ortholinear made for stenography. Uses QMK Firmware's Gemini Protocol. This is the pro micro version (aka Uni v2)
- Size
- 247.6 × 76.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 50
- Pads
- 426
- Tracks, vias
- 395, 14
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 20 Jan 2021
- Updated
- 16 Nov 2024
Overview
Unisplit orthosteno is an open-source printed circuit board by petercpark, from the petercpark/The_Uni repository on GitHub. It is a 2-layer board of 247.6 × 76.2 mm with 65 parts on 50 nets, routed with 395 tracks and 14 vias.
Its parts include 28 diodes, 1 IC and 1 switch. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
README
README.mdThe Uni Board
The uni-body split ortholinear keyboard for stenography, or the Uni for short. By Peter C Park. This is the pro micro version. I used KiCad Nightly Release so the kicad files are not compatible with older version.
Buy it now at StenoKeyboards.com.
Product
If you are going DIY with this, here are the materials you need:
- The Uni PCB x 1 (diodes will come pre-assembled)
- Arduino Pro Micro x 1
- Switches x 28
- Keycaps x 28
- Willingness to solder x 1
If you want me to assemble here are the materials you need:
- money
Arduino
The arduino you should use is the Pro Micro. You can also use other microcontrollers with same footprints such as the Elite C.
Switches
Nearly any switch is compatible with the v2. The board has a footprint that accomodates for mx, alps, and choc v1 style switches.
Keycaps
The best keycaps to use are the OEM R3 keycaps with one of the rows inverted to reduce the gap in the middle.
I used to recommend 3d printing your caps but OEM R3 caps are better. There are other flat keycaps for mx style switches at pimpmykeyboard.com called f10 keycaps. There is also a slightly less flatter version called the G20 keycaps on their store and people have used them for steno.
Soldering
All you have to solder are the switches and pro micro if you get the pcb with the diodes assembled. If not you'll have to solder the smd diodes yourself. Check the BOM file for the necessary materials.
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 28 | MX-NoLED | Keebio-Parts:MX-Alps-Choc-1U-NoLED | MX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23 +12 |
| 28 | SOD-123 | Keebio-Parts:D_SOD123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +12 |
| 1 | ProMicro | Keebio-Parts:ArduinoProMicro | U1 |
| 1 | SW_SPST | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
The 58 most common of 65 parts.
Questions
How big is the Unisplit orthosteno PCB?
It measures 247.6 × 76.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Unisplit orthosteno use?
65 parts. 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 Unisplit orthosteno KiCad files?
From the petercpark/The_Uni repository on GitHub, at the commit this page was made from: the board is unisplit_orthosteno.kicad_pcb and its schematic unisplit_orthosteno.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Unisplit orthosteno design in my own project?
Its repository states no licence, so its author keeps all rights: ask petercpark before reusing the design.
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