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2 layers50 × 55 mmController mcu, the printed circuit board in 3D

Controller mcu

Mo-MoS/controllers1

Controllers for MIDI, USB, Software Synths, VST Plugins.

Size
50 × 55 mm
Copper layers
2
Thickness
1.6 mm
Parts
4
Nets
36
Pads
64
Tracks, vias
127, 2
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
30 Sep 2025
Updated
22 Sep 2026

Overview

Controller mcu is an open-source printed circuit board by Mo-MoS, from the Mo-MoS/controllers repository on GitHub. It is a 2-layer board of 50 × 55 mm with 4 parts on 36 nets, routed with 127 tracks and 2 vias.

It belongs with the audio and music boards of this library.

README

README.md

Controllers

Description

Controllers for MIDI, USB, Software Synths, VST Plugins.

Pictures

PCB boards for the 14 knobs of S2-OSC:

PCBs for S2-OSC

Functional prototype of S2-OSC in a livestream:

S2-OSC livestream screenshot

Paper scribble for the S2-OSC frontplate:

S2-OSC paper front

Prototype in handmade PCB boards for S2-OSC:

S2-OSC pcbs

Parts

4
QtyValueFootprintReferences
2Conn_01x20Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_VerticalJ1, J2
1to_analog_muxConnector_PinHeader_2.54mm:PinHeader_2x07_P2.54mm_VerticalJ4
1to_button_matrixConnector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_VerticalJ3

Questions

How big is the Controller mcu PCB?

It measures 50 × 55 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Controller mcu use?

4 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 Controller mcu KiCad files?

From the Mo-MoS/controllers repository on GitHub, at the commit this page was made from: the board is s2/kicad/controller_mcu/controller_mcu/controller_mcu.kicad_pcb and its schematic s2/kicad/analog_mux/analog_mux/analog_mux.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Controller mcu design in my own project?

Its repository states no licence, so its author keeps all rights: ask Mo-MoS before reusing the design.

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