2 layers65.2 × 100 mm
2 layers54 × 35 mm
Io module
cycfi/nexus20The Nexus breakout box
- Size
- 54 × 35 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 13
- Pads
- 52
- Tracks, vias
- 90, 10
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Oct 2016
- Updated
- 29 Jun 2026
Overview
Io module is an open-source printed circuit board by cycfi, from the cycfi/nexus repository on GitHub. It is a 2-layer board of 54 × 35 mm with 6 parts on 13 nets, routed with 90 tracks and 10 vias.
README
README.mdNexus
The Nexus is a small, flexible, and hacker friendly breakout box that connects your multichannel guitar to the outside world using a specialized (LEMO compatible) multi-pin connector for up to 15 channels of audio and 7 channels of analog control voltages for by-wire (remote) control of volume, tone, patch or effects. Audio may come from standard mono-pickups or from the Nu multichannel pickup. Analog control voltages are converted to MIDI control messages.
Refer to this repository to get the Eagle libraries used in our schematic and pcb files: https://github.com/cycfi/eagle_common
Hardware design files licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Software source code distributed under the MIT License.
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | ZHEJINAG_CK_STSJACKS | io_module:ZHEJINAG_CK_6.35 | J1, J2, J3 |
| 2 | MA08-1 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | H1, H2 |
| 1 | LOGO | cycfi_library:cycfi-logo-12mm | G*** |
Questions
How big is the Io module PCB?
It measures 54 × 35 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Io module use?
6 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 Io module KiCad files?
From the cycfi/nexus repository on GitHub, at the commit this page was made from: the board is breakout_box/io_module/io_module.kicad_pcb and its schematic breakout_box/io_module/io_module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Io module design in my own project?
Its repository states no licence, so its author keeps all rights: ask cycfi before reusing the design.
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