OMX-27 Interest Check

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OMX-27 is a DIY hardware MIDI controller and sequencer with RGB LED backlit mechanical key switches. Includes USB-MIDI, hardware MIDI and CV/Gate output.

Let me know your name/e-mail and I will update you with information when the OMX-27 is available

Pricing has not yet been determined and will depend somewhat on quantities requested/ordered

Email address *

Name *

What sort of set/kit would you like? *

Bare PCB set (Main PCB + Key plate PCB, No LEDs - SMD soldering required)

SMD assembled PCB set + LEDs (LEDs not soldered) + Spacer/Bottom-Plate

Partial Kit 1 (PCB set + LEDs + OLED, No Teensy, No Pots/Encoder, No Key Switches, No Keycaps)

Partial Kit 2 (PCB set + LEDs + Parts + OLED + Teensy, No Key Switches, No Keycaps)

Full Kit (PCB set + LEDs + Parts + OLED + Teensy + Cherry MX RED/Silent RGB Switches + Windowed Keycaps)

Knobs for the potentiometers/encoder?

Befaco style "micro knobs"

Davies clones

Supply my own knobs

Optional items (if not wanting a full kit)

Teensy 3.2

Set of 27 Cherry MX Red/Silent RGB key switches

Set of 27 windowed keycaps

Set of 27 plain dark grey translucent keycaps

Set of windowed keycaps for Cirklon (or other devices)

What country would it be shipped to?

Comments and/or questions

FAQ

Q: What key switches are recommended?
A: Cherry MX RGB switches are recommended and are linked in the BOM on Github. Different varieties are available (Red, Brown, etc.)

Q: Can I use other keyswitches?
A: Yes - as long as they have the same footprint as Cherry MX switches and a window/opening for the LED to shine through. Low profile keys like the Cherry Low Profile or Kailh Choc switches have a different footprint and will not work.

Q: What about recommended Keycaps?
A: Also listed in the BOM. You want an MX stem cap, with translucency or a window for the LED to shine through. DSA profile caps work well.

Q: Does this project require soldering?
A: Yes. Thru-hole soldering is required along with some easy SMD (LEDs and jacks).

Q: What's with these LEDs?
A: This project uses SK6812-MINI-E reverse mount LEDs. They are somewhat hard to find, so I'll try to offer them included with kits. They are easy to solder, even if you've not done much SMD.

Q: MIDI?
A: Class compliant USB-MIDI out, plus hardware MIDI out via 1/8in jack (switchable between korg or arturia)

Q: CV/Gate?
A: Yes! One CV Gate output and one CV Pitch output. Limited to 4 octaves - probably needs attenuators/attenuverters.

Q: Can I get the Gerbers or order the pcbs myself?
A: No. Not sure about open sourcing yet.

Q: More info?
A: Github page work in progress with Build Guide and firmware: https://github.com/okyeron/OMX-27

PCB

Photos

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