2 layers36 × 42 mm
Interface pcb
julianschuler/keyboards
A repository containing the code, cases and co. of the keyboards I have built
14 parts10MIT
2 layers36 × 42 mm
Interface pcb
julianschuler/keyboards10A repository containing the code, cases and co. of the keyboards I have built
- Size
- 36 × 42 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 40
- Pads
- 135
- Tracks, vias
- 392, 12
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Jun 2021
- Updated
- 30 Nov 2025
Overview
Interface pcb is an open-source printed circuit board by julianschuler, from the julianschuler/keyboards repository on GitHub, published under the MIT licence. It is a 2-layer board of 36 × 42 mm with 11 parts on 40 nets, routed with 392 tracks and 12 vias.
Its parts include 2 resistors, 2 ICs, 2 connectors and 1 capacitor. It belongs with the keyboards and input and interfaces and adapters boards of this library.
README
README.mdKeyboards
This repository contains the code, cases and co. of the keyboards I have built.
All keyboards in chronological order:
| Name | Image | Description |
|---|---|---|
| Manuform |  | 50% hand-wired keyboard focussed on ergonomic typing with ortholinear columns |
| Ergomin |  | 40% PCB based split keyboard focussed on ergonomic typing with ortholinear columns |
| Concavum |  | Fully parametric ergonomic split keyboard with automatically generated matrix PCB |
| Concavum v2 |  | Second revision of the Concavum keyboard with an easy to use customizer |
License
This project is licensed under the MIT license, see LICENSE.txt for further information.
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1k | Resistor_SMD:R_1206_3216Metric | R1, R2 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2 |
| 1 | 100n | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | Adafruit_KB2040 | Custom:Adafruit_KB2040 | U1 |
| 1 | Audio_Jack | Custom:Audio_Jack_Dual_Side | J1 |
| 1 | FPC_connector | Custom:FPC_Connector | J2 |
| 1 | MCP23017/MCP23018 | Custom:MCP23017_SO_MCP23018_SO | U2 |
The 9 most common of 11 parts.
Questions
How big is the Interface pcb PCB?
It measures 36 × 42 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Interface pcb use?
11 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 Interface pcb KiCad files?
From the julianschuler/keyboards repository on GitHub, at the commit this page was made from: the board is concavum/pcb/interface-pcb/interface-pcb.kicad_pcb and its schematic concavum-v2/interface-pcb/interface-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Interface 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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