2 layers40.6 × 110 mm
Europi surface mount
Allen-Synthesis/EuroPi
EuroPi: A reprogrammable Eurorack module based on the Raspberry Pi Pico
92 parts584CC0-1.0
Modular
220 boardsKiCad boards from 34 GitHub repositories tagged “modular”, the most starred first; open any of them in PCBKit.
- 4 layers82.5 × 39.4 mm
V4head
makerforgetech/modular-biped
An open source framework for creating a bipedal modular companion robot.
26 parts493GPL-3.0 - 2 layers228.6 × 100 mm
Mongus48
ChrisChrisLoLo/beyblock20
The magnetic, modular, 20-key macropad that can join together to form an ortholinear board
124 parts335GPL-3.0 - 2 layers58 × 110 mm
- 2 layers165 × 103.8 mm
Output pcb
QuinnFreedman/modular
A collection of free & open source DIY synthesizer module designs for Eurorack
128 parts116 - 2 layers173 × 85 mm
Audio board
EleonoreMizo/pedalevite
Pédale Vite — DIY multi-FX pedalboard for guitar/bass/etc.
268 parts101WTFPL - 2 layers200 × 100 mm
Polykit x monosynth
polykit/polykit-x-monosynth
The Polykit X1 is a DIY semi-modular, analog, patchable synthesizer
167 parts94 - 4 layers39.4 × 110.3 mm
- 4 layers104.3 × 106.8 mm
Sk162-herd mixer
mirdej/synkie
The Synkie is a modular open source analog video processor, developed by Michael Egger, Max Egger and Flo Kaufmann
223 parts47 - 2 layers14 × 110 mm
- 2 layers100 × 100 mm
- 2 layers83.8 × 72.4 mm
- 2 layers9 × 110 mm
Passive stereo output
bmoren/Stereo-Output-2hp
passive stereo output in 2hp (a companion for nearness)
6 parts18 - 4 layers
6-Slot Backplane
transistorfet/retroverse
A collection of VME-based hardware and software for modular computers
136 parts17 - 2 layers92.4 × 91 mm
DiodeORLogic
ijnekenamay/Passive_modules
This is a passive outboard device for modular synths and can be used a "bare"PCB.
23 parts10 - 2 layers40.3 × 128.5 mm
- 2 layers156 × 156 mm
Master board
roboryman/prototroller
A full-stack modular controller that is feature-rich, usable, responsive, and robust. Can be used for any HID-compliant purpose, but we focus on developing swappable modules that can form customizable gamepads.
83 parts9MIT - 4 layers52 × 69 mm
- 2 layers20 × 65 mm
019-tayloe quadrature product detector
Halogenek/modular-rf-bench
Cheap and simple setup for learning RF electronics
30 parts3 - 2 layers17.8 × 101.6 mm
EurorackMicrocontrollerModule
Fora888/Universal-Teensy-4.0-Eurorack-Shield
Teensy 4.0 shield with ADC, DAC and breakouts for perfboard
43 parts2 - 4 layers100 × 100 mm
- 2 layers127 × 128.5 mm
Wow and flutter
mprosk/wow_and_flutter
Wow & Flutter is a pitch modulation source, that generates triangle and sample and hold with slew
72 parts2MIT - 2 layers
- 2 layers61.4 × 110.6 mm
IRONMix
VoltageFoundryMod/IRONMix
Eurorack Line-level mixer and Headphone Output module in 4HP
97 parts2MIT