Difference between revisions of "SYNTH-MIDI-CV4-01"

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[[file:SYNTH-MIDI_CV4-01_REV1_FRONT_3D.png]]
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== Features ==
 
== Features ==
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* Convert MIDI messages into Control Voltage outputs
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* Adapted from [https://note.com/solder_state/n/n17e028497eba HAGIWO's MIDI to CV module]
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** Translate from Japanese to English using browser
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** Removes Digital Outputs
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** Has 4 Analog Outputs instead of 2
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* [http://land-boards.com/blwiki/index.php?title=QT_Py_(RP2040_based) XAIO RP2040 CPU]
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** Arduino MIDI library has '''not''' yet been ported to Pico so will need to use CircuitPython
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* MIDI In
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** Standard MIDI Jacks
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** MIDI out jack for future functionality
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* (4) 0-5V Analog CV outs
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** [https://www.mouser.com/ProductDetail/Microchip-Technology-Atmel/MCP4822-E-P?qs=sGAEpiMZZMtgJDuTUz7Xu5a0A%252BlHhkxt3QSpqvc4zyk%3D MCP4822 12-bit D/A] - SPI Interface
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*** (2) [https://www.mouser.com/datasheet/2/268/21953a-8929.pdf MCP4822 Datasheet]
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** Use with [[SYNTH-VCO-01]]
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*** CV_1 = V/OCT
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*** CV_2 = MOD
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* Standard EuroRack 16 pin header
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** Supports 12V in with on-board 5V regulator
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** 5V regulator can be not installed if 5V is available on EuroRack connection
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* Card is '''not''' a Eurorack card
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** Probably too deep, needs cabling
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* (6) 6-32 Mounting holes
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** Stacks with [[SYNTH-VCO-01]] card
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== Reference Docs ==
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* [https://docs.circuitpython.org/projects/midi/en/latest/api.html adafruit_midi CircuitPython API]
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* [https://www.tigoe.com/pcomp/code/communication/midi/ MIDI Communication]
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* [https://github.com/elkayem/midi2cv elkayem midi2cv GitHub page] _ Nano based project
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** Arduino MIDI library has '''not''' yet been ported to Pico so will need to use Python
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** Drives 4 CV outputs: Pitch Blend, Control, Note, Velocity
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** This card only drives Note (Voltes/Oct, Mod)
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* [https://learn.adafruit.com/raspberry-pi-pico-led-arcade-button-midi-controller-fighter/coding-the-raspberry-pi-pico-midi-controller MIDI Controller in Python]
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* [https://doepfer.de/a100_man/a100t_e.htm Principles of Voltage Control]
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* [https://www.perfectcircuit.com/signal/midi-to-cv Creative Control Strategies: MIDI to CV]
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* [https://www.behance.net/gallery/113377671/EuroPi-Making-EuroRack-Affordable EuroPi]
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* [https://reverb.com/news/beginners-guide-to-eurorack-case-basics-oscillators-filters Eurorack Beginners Guide]
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* [https://en.wikipedia.org/wiki/Eurorack Eurorack Wiki page]
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* [https://github.com/benevpi/PicoPicoSynth PicoPicoSynth]
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== Software ==
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* [https://github.com/land-boards/lb-boards/blob/master/Audio%20Cards/SYNTH-MIDI-CTL-01/SOFTWARE/SYNTHMIDICTL01/SYNTHMIDICTL01.ino SYNTHMIDICTL01] - Arduino Software
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== Videos ==
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<video type="youtube">bHiZhLAntNI</video>
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* Similar design
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<video type="youtube">aPUvFdmg6eM</video>
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== Assembly Sheet ==
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* [[SYNTH-MIDI-CV4-01 Rev 1 Assembly Sheet]]

Latest revision as of 11:19, 30 September 2022

SYNTH-MIDI CV4-01 REV1 FRONT 3D.png

Features

  • Convert MIDI messages into Control Voltage outputs
  • Adapted from HAGIWO's MIDI to CV module
    • Translate from Japanese to English using browser
    • Removes Digital Outputs
    • Has 4 Analog Outputs instead of 2
  • XAIO RP2040 CPU
    • Arduino MIDI library has not yet been ported to Pico so will need to use CircuitPython
  • MIDI In
    • Standard MIDI Jacks
    • MIDI out jack for future functionality
  • (4) 0-5V Analog CV outs
  • Standard EuroRack 16 pin header
    • Supports 12V in with on-board 5V regulator
    • 5V regulator can be not installed if 5V is available on EuroRack connection
  • Card is not a Eurorack card
    • Probably too deep, needs cabling
  • (6) 6-32 Mounting holes

Reference Docs

Software

Videos

  • Similar design

Assembly Sheet

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