Difference between revisions of "Land Boards Synth Components"

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* [[SYNTH-MIDI-CTL-01]] - Synth MIDI Controller
 
* [[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
  
 
=== SYNTH-MIDI-CV4-01 ===
 
=== SYNTH-MIDI-CV4-01 ===

Revision as of 08:42, 25 September 2022

Synth Modules

MIDI-IN-OUT

MIDI-IN-OUT REV1 FRONT 3D.png

  • MIDI-IN-OUT - MIDI In/Out
  • MIDI In/Out Jacks
  • 5V MIDI
  • 3.3V or 5V Serial connections
  • MIDI In is opto-isolated
  • (2) 4-40 Mounting holes

SCF-2

  • SCF-2 - Dual 3.5mm Audio Jacks (Scale, Clip, Filter)

SCF-2 REV 1 FRONT 3D.png

  • Digital Inputs or Outputs
  • (2) 3.5mm Jacks
  • Scaling resistors
  • Schottky Clamping Diodes
  • Filter cap
  • Ring pin brought to connector
    • Ring pin is not used in Synth applications
    • Card can be used as a 3.5mm breakout
  • (2) 4-40 mounting holes

SYNTH-VCO-01

SYNTH-VCO-01 REV1 FRONT 3D.png

  • Build of Pico VCO by HAGIWO
  • Digital Voltage Controlled Oscillator (VCO)
  • Three modes: Wavefold, FM and AM
  • PWM output with 2 pole low pass filter
  • Each mode has eight built-in waveforms
  • XIAO RP2040 CPU
  • (5) Pushbuttons
    • Octave Up/Down
    • Mode Up/Down (Wavefold, FM and AM)
    • Push Timbre switches between 8 waveforms
  • (2) Knobs
    • Freq fine adjust
    • Mod adjust
  • 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
  • (4) 6-32 mounting holes

SYNTH-MIDI-CTL-01

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


  • Adapted from HAGIWO's MIDI to CV module
    • Translate from Japanese to English using browser
  • XAIO RP2040 CPU
    • Arduino MIDI library has not yet been ported to Pico so will need to use CircuitPython
  • MIDI In/Out
    • Standard MIDI Jacks
    • MIDI out jack for future functionality
  • (2) 0-5V Analog CV outs
  • (2) Digital Outs, eX:
    • Gate
    • Clock
  • Pot supports setting Clock rate
  • 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

SYNTH-MIDI-CV4-01

Reference Docs

Videos

  • Hooking together modules

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