The Hephaestus Mod - Matrix Breakout Board
limentic·the-hephaestus-mod·ECAD-files/dev-board/dev-board.kicad_pcb
About the The Hephaestus Mod - Matrix Breakout Board
The Hephaestus Mod - Matrix Breakout Board is an open source PCB design by limentic, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 99.1 × 99.1 mm, with 159 components from 5 distinct parts.
By type, the board carries 158 connectors and 1 diode.
It belongs with the dev boards & breakouts and keyboards designs in this gallery.
From the project
Transform your Apple Magic Keyboard into a mechanical keyboard. Not affiliated with Apple.
The Hephaestus Mod is an independent project created by hardware enthusiasts. It is not endorsed, sponsored, ore supported by Apple Inc. Use this project at your own risk. Modifying your Magic Keyboard WILL void any warranty provided by Apple Inc.

The Hephaestus Mod - Matrix Breakout Board bill of materials (BOM)
159 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 78 | Diode_header | PinHeader_1x02_P2.54mm_Vertical | J1, J2, J3, J4, J5, J6, J7, J8 +70 |
| 78 | Button_header | PinHeader_1x02_P2.54mm_Vertical | J14, J15, J16, J17, J18, J19, J20, J21 +70 |
| 1 | Conn_01x40_Female | Hirose_FH12-40S-0.5SH_1x40-1MP_P0.50mm_Horizontal | J157 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J158 |
| 1 | LED_Small Lite-On | LED_0805_2012Metric | D1 |
The Hephaestus Mod - Matrix Breakout Board design files
The KiCad project lives in the limentic/the-hephaestus-mod repository on GitHub; these links point at the commit this page was built from.
The Hephaestus Mod - Matrix Breakout Board: common questions
How big is the The Hephaestus Mod - Matrix Breakout Board?
The The Hephaestus Mod - Matrix Breakout Board measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the The Hephaestus Mod - Matrix Breakout Board?
159 components, from 5 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 The Hephaestus Mod - Matrix Breakout Board design files?
From the limentic/the-hephaestus-mod 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 The Hephaestus Mod - Matrix Breakout Board design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which limentic chose for the repository.