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| − | == Synth Modules == | + | == Synth Modules (Standalone) == |
| | | | |
| − | * Synthesizer interfaces and modules
| + | * [[Synth Modules (Standalone)]] |
| − | ** [[MIDI-IN-OUT]] - MIDI In/Out
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| − | ** [[SCF-2]] - Dual 3.5mm Audio Jacks (Scale, Clip, Filter_
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| − | ** [[SYNTH-VCO-01]] - Synth Voltage Controlled Oscillator
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| − | ** [[SYNTH-MIDI-CTL-01]] - Synth MIDI Controller
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| − | ** [[SYNTH-MIDI-CV4-01]] - 4 Output MIDI to CV controller
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| | | | |
| − | === MIDI-IN-OUT === | + | == Eurorack Modules == |
| | | | |
| − | [[file:MIDI-IN-OUT_REV1_FRONT_3D.png]] | + | * [[Eurorack Synth Modules]] |
| | | | |
| − | * [[MIDI-IN-OUT]] - MIDI In/Out
| + | == MOD Designs == |
| − | * MIDI In/Out Jacks
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| − | * 5V MIDI
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| − | * 3.3V or 5V Serial connections
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| − | * MIDI In is opto-isolated
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| − | * (2) 4-40 Mounting holes
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| | | | |
| − | === SCF-2 ===
| + | * [[Synth Mod Designs]] |
| − | | |
| − | * [[SCF-2]] - Dual 3.5mm Audio Jacks (Scale, Clip, Filter) | |
| − | | |
| − | [[FILE:SCF-2_REV_1_FRONT_3D.png]]
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| − | | |
| − | * Digital Inputs or Outputs
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| − | * (2) 3.5mm Jacks
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| − | * Scaling resistors
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| − | * Schottky Clamping Diodes
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| − | * Filter cap
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| − | * Ring pin brought to connector
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| − | ** Ring pin is not used in Synth applications
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| − | ** Card can be used as a 3.5mm breakout
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| − | * (2) 4-40 mounting holes
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| − | | |
| − | === SYNTH-VCO-01 ===
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| − | | |
| − | * [[SYNTH-VCO-01]] - Synth Voltage Controlled Oscillator
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| − | | |
| − | [[FILE:SYNTH-VCO-01_REV1_FRONT_3D.png]]
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| − | | |
| − | * Build of [https://note.com/solder_state/n/nca6a1dec3921 Pico VCO by HAGIWO]
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| − | * Digital Voltage Controlled Oscillator (VCO)
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| − | * Three modes: Wavefold, FM and AM
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| − | * PWM output with 2 pole low pass filter
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| − | * Each mode has eight built-in waveforms
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| − | * [http://land-boards.com/blwiki/index.php?title=QT_Py_(RP2040_based) XIAO RP2040] CPU
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| − | * (5) Pushbuttons
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| − | ** Octave Up/Down
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| − | ** Mode Up/Down (Wavefold, FM and AM)
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| − | ** Push Timbre switches between 8 waveforms
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| − | * (2) Knobs
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| − | ** Freq fine adjust
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| − | ** Mod adjust
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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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| − | * (4) 6-32 mounting holes
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| − | ** Stacks with [[SYNTH-MIDI-CTL-01]] card
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| − | | |
| − | === SYNTH-MIDI-CTL-01 ===
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| − | | |
| − | * [[SYNTH-MIDI-CTL-01]] - Synth MIDI Controller
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| − | | |
| − | [[FILE:SYNTH-MIDI_CTL-01_REV1_FRONT_3D.png]]
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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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| − | * [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/Out
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| − | ** Standard MIDI Jacks
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| − | ** MIDI out jack for future functionality
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| − | * (2) 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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| − | *** [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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| − | *** CV1 = V/OCT
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| − | *** CV2 = MOD
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| − | * (2) Digital Outs, eX:
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| − | ** Gate
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| − | ** Clock
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| − | * Pot supports setting Clock rate
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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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| − | | |
| − | === SYNTH-MIDI-CV4-01 ===
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| − | | |
| − | * [[SYNTH-MIDI-CV4-01]] - 4 Output MIDI to CV controller
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| − | | |
| − | [[FILE:SYNTH-MIDI_CV4-01_REV1_FRONT_3D.png]]
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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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| − | *** [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/home_e.htm Eurocard inventor/specs]
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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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| − | * [https://www.befaco.org/# BEFACO] - Kits
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| − | * [https://github.com/clacktronics/AudioJacks KiCad Audio Jack Symbols]
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| − | * [https://www.thonk.co.uk/shop/thonkiconn/ THONKICONN – 3.5MM JACK SOCKETS]
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| − | * [https://github.com/erica-synths/diy-eurorack Erica Synths DIY GitHub]
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| − | * [https://store.synthrotek.com/ Synthrotek Store]
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| − | * [https://syntherjack.net/category/project/ SyntherJack] - DIY Synths
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| − | | |
| − | == Videos ==
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| − | | |
| − | * Hooking together modules
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| − | | |
| − | <video type="youtube">J0iUN2B4aBQ</video>
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