2 layers
Nrf bga
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12 parts14kMIT
2 layers33.5 × 27.9 mm
Wyse mod pcb
Sn3cor/wyse-modWyse Keyboard converter from 4P4C to USB, compatilble with Soarer's firmware
- Size
- 33.5 × 27.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 22
- Pads
- 45
- Tracks, vias
- 22, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Aug 2026
- Updated
- 9 Sep 2026
Overview
Wyse mod pcb is an open-source printed circuit board by Sn3cor, from the Sn3cor/wyse-mod repository on GitHub, published under the MIT licence. It is a 2-layer board of 33.5 × 27.9 mm with 12 parts on 22 nets, routed with 22 tracks and 0 vias.
Its parts include 2 connectors, 1 IC and 1 switch. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdwyse-mod
This project makes converting Wyse keyboards (with 4P4C connector) easier to test, with the end goal of functioning as a standalone converter box. It is designed to work with Soarer's Wyse conversion software. I'll be trying to create something similar soon (to be at least compatible with Wyse PCE Keyboard).
Huge thanks to ErkHal and their Pohola Work's project for sparking the idea for this project.
Overview
The PCB features dedicated pads to solder wires straight from the keyboards connector pins for easy testing.
A Pro Micro microcontroller is mounted on the bottom of the board, with components facing the PCB. Also using a socket for an MCU is highly recommended. After veryfing that your Wyse keyboard works with the firmware, simply solder a 4P4C connector and plug in an old RJ9/RJ10/RJ22 (afaik they are all the same) roll-over (crossed) cable.
Frontside
Backside
Parts List
- the PCB
- Pro Micro like board (with ATmega32U4)
- Hotswap sockets for the Pro Micro
- 4P4C connector
- RJ9/RJ10/RJ22 cable
- 6x6 button (optional, but makes flashing software easier)
- 4xM3 screws (TODO after designing a case)
TODO
- Design a PCB [Rev 1.0 is being tested]
- Design a case
- Try to write own conversion software
Sources and helpful links
- Soarer's geekhack thread(some of the images aren't rendering so here is an archived version)
- Soarer's deskthority thread
- A guide for Pro Micro conversion with Soarer's(contains a thorough guide for the Soarer's mod and mentions other useful sources)
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | , , | ||
| 1 | Handwire | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J2 |
| 1 | LOGO | LOGO | G*** |
| 1 | ProMicro | Keebio:ArduinoProMicro | U1 |
| 1 | RJ9 | Connector_RJ:RJ9_Evercom_5301-440xxx_Horizontal | J1 |
| 1 | Reset Switch | Button_Switch_THT:SW_PUSH_6mm | SW1 |
The 8 most common of 12 parts.
Questions
How big is the Wyse mod pcb PCB?
It measures 33.5 × 27.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Wyse mod pcb use?
12 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 Wyse mod pcb KiCad files?
From the Sn3cor/wyse-mod repository on GitHub, at the commit this page was made from: the board is wyse-mod-pcb/wyse-mod-pcb.kicad_pcb and its schematic wyse-mod-pcb/wyse-mod-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wyse mod pcb 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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