Difference between revisions of "Land Boards Synth Components"

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== Synth Modules ==
 
== Synth Modules ==
  
−
* [[MIDI-IN-OUT]] - MIDI In/Out
+
* Synthesizer interfaces and modules
−
* [[SCF-2]] - Dual 3.5mm Audio Jacks (Scale, Clip, Filter_
+
** [[MIDI-IN-OUT]] - MIDI In/Out
−
* [[SYNTH-VCO-01]] - Synth Voltage Controlled Oscillator
+
** [[SCF-2]] - Dual 3.5mm Audio Jacks (Scale, Clip, Filter_
−
* [[SYNTH-MIDI-CTL-01]] - Synth MIDI Controller
+
** [[SYNTH-VCO-01]] - Synth Voltage Controlled Oscillator
−
* [[SYNTH-MIDI-CV4-01]] - 4 Output MIDI to CV controller
+
** [[SYNTH-MIDI-CTL-01]] - Synth MIDI Controller
 +
** [[SYNTH-MIDI-CV4-01]] - 4 Output MIDI to CV controller
  
 
=== MIDI-IN-OUT ===
 
=== MIDI-IN-OUT ===
Line 20: Line 21:
 
=== SCF-2 ===
 
=== SCF-2 ===
  
−
* [[SCF-2]] - Dual 3.5mm Audio Jacks (Scale, Clip, Filter_
+
* [[SCF-2]] - Dual 3.5mm Audio Jacks (Scale, Clip, Filter)
 +
 
 +
[[FILE: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 ===
  
 
* [[SYNTH-VCO-01]] - Synth Voltage Controlled Oscillator
 
* [[SYNTH-VCO-01]] - Synth Voltage Controlled Oscillator
 +
 +
[[FILE:SYNTH-VCO-01_REV1_FRONT_3D.png]]
 +
 +
* Build of [https://note.com/solder_state/n/nca6a1dec3921 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
 +
* [http://land-boards.com/blwiki/index.php?title=QT_Py_(RP2040_based) 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
 +
** Stacks with [[SYNTH-MIDI-CTL-01]] card
  
 
=== SYNTH-MIDI-CTL-01 ===
 
=== SYNTH-MIDI-CTL-01 ===
  
 
* [[SYNTH-MIDI-CTL-01]] - Synth MIDI Controller
 
* [[SYNTH-MIDI-CTL-01]] - Synth MIDI Controller
 +
 +
[[FILE:SYNTH-MIDI_CTL-01_REV1_FRONT_3D.png]]
 +
 +
 +
* Adapted from [https://note.com/solder_state/n/n17e028497eba HAGIWO's MIDI to CV module]
 +
** Translate from Japanese to English using browser
 +
* [http://land-boards.com/blwiki/index.php?title=QT_Py_(RP2040_based) 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
 +
** [https://www.mouser.com/ProductDetail/Microchip-Technology-Atmel/MCP4822-E-P?qs=sGAEpiMZZMtgJDuTUz7Xu5a0A%252BlHhkxt3QSpqvc4zyk%3D MCP4822 12-bit D/A] - SPI Interface
 +
*** [https://www.mouser.com/datasheet/2/268/21953a-8929.pdf MCP4822 Datasheet]
 +
** Use with [[SYNTH-VCO-01]]
 +
*** CV1 = V/OCT
 +
*** CV2 = MOD
 +
* (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
 +
** Stacks with [[SYNTH-VCO-01]] card
  
 
=== SYNTH-MIDI-CV4-01 ===
 
=== SYNTH-MIDI-CV4-01 ===
  
 
* [[SYNTH-MIDI-CV4-01]] - 4 Output MIDI to CV controller
 
* [[SYNTH-MIDI-CV4-01]] - 4 Output MIDI to CV controller
 +
 +
[[FILE:SYNTH-MIDI_CV4-01_REV1_FRONT_3D.png]]
 +
 +
* Adapted from [https://note.com/solder_state/n/n17e028497eba HAGIWO's MIDI to CV module]
 +
** Translate from Japanese to English using browser
 +
** Removes Digital Outputs
 +
** Has 4 Analog Outputs instead of 2
 +
* [http://land-boards.com/blwiki/index.php?title=QT_Py_(RP2040_based) 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
 +
** [https://www.mouser.com/ProductDetail/Microchip-Technology-Atmel/MCP4822-E-P?qs=sGAEpiMZZMtgJDuTUz7Xu5a0A%252BlHhkxt3QSpqvc4zyk%3D MCP4822 12-bit D/A] - SPI Interface
 +
*** [https://www.mouser.com/datasheet/2/268/21953a-8929.pdf MCP4822 Datasheet]
 +
** Use with [[SYNTH-VCO-01]]
 +
*** CV_1 = V/OCT
 +
*** CV_2 = MOD
 +
* 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
 +
** Stacks with [[SYNTH-VCO-01]] card
  
 
== Reference Docs ==
 
== Reference Docs ==
Line 38: Line 127:
 
* [https://docs.circuitpython.org/projects/midi/en/latest/api.html adafruit_midi CircuitPython API]
 
* [https://docs.circuitpython.org/projects/midi/en/latest/api.html adafruit_midi CircuitPython API]
 
* [https://www.tigoe.com/pcomp/code/communication/midi/ MIDI Communication]
 
* [https://www.tigoe.com/pcomp/code/communication/midi/ MIDI Communication]
−
* [https://github.com/elkayem/midi2cv elkayem midi2cv GitHub page] _ Nano based project
+
* [https://github.com/elkayem/midi2cv elkayem midi2cv GitHub page] - Nano based project
 
** Arduino MIDI library has '''not''' yet been ported to Pico so will need to use Python
 
** Arduino MIDI library has '''not''' yet been ported to Pico so will need to use Python
 
** Drives 4 CV outputs: Pitch Blend, Control, Note, Velocity
 
** Drives 4 CV outputs: Pitch Blend, Control, Note, Velocity

Revision as of 12:15, 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

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

  • 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

Videos

  • Hooking together modules

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