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OMIDItone Board

kiyoshigawa·oMIDItone·Controller PCB/oMIDItone V1 - OLD/oMIDItone Board.kicad_pcb

OMIDItone Board layout, top view — open source NXP board by kiyoshigawa

About the OMIDItone Board

OMIDItone Board is an open source NXP PCB design by kiyoshigawa, published on GitHub. It is a 2-layer board measuring 97.8 × 76.2 mm, with 25 components from 4 distinct parts.

Its main chip is the Teensy-LC, from the NXP family. Other key parts include the MCP-4151. By type, the board carries 13 ICs, 6 connectors and 6 relays.

It belongs with the audio and test & measurement designs in this gallery.

From the project

Turning otamatones into MIDI controlled instruments.

This is a project that takes an otamatone (https://otamatone.com/) and hijacks the control using digital potentiometers and a Teensy running USB MIDI libraries to turn it into a MIDI instrument.

The Controller PCB files currently use optoisolators. This design does not work correctly. I manually replaced the optoisolators with darlington NPN transistors, and that led to everything functioning as intended. I plan to revisit the PCB ocne I've tested the advanced features of the board (such as the servo control for opening the mouths, and the addressable LED lighting for the heads) to avoid…

Main components on the OMIDItone Board

Teensy-LCMCP-4151

OMIDItone Board bill of materials (BOM)

25 components, 4 distinct parts.

QtyPartRefs
1
Teensy-LC
U1
12
MCP-4151
U2, U3, U4, U5, U6, U7, U8, U9 +4
6
oMIDItonePort
J1, J2, J3, J4, J5, J6
6
KF0602D
K1, K2, K3, K4, K5, K6

OMIDItone Board design files

The KiCad project lives in the kiyoshigawa/oMIDItone repository on GitHub; these links point at the commit this page was built from.

OMIDItone Board: common questions

What microcontroller does the OMIDItone Board use?

The OMIDItone Board is built around the Teensy-LC, from the NXP family.

How big is the OMIDItone Board?

The OMIDItone Board measures 97.8 × 76.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OMIDItone Board?

25 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the OMIDItone Board design files?

From the kiyoshigawa/oMIDItone repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the OMIDItone Board design in my own project?

The repository has no license, so all rights stay with kiyoshigawa. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the OMIDItone Board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.

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