Difference between revisions of "Land Boards Synth Components"

Revision as of 08:43, 25 September 2022

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

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
- Stacks with SYNTH-MIDI-CTL-01 card

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
- MCP4822 12-bit D/A - SPI Interface
  - 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

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
- MCP4822 12-bit D/A - SPI Interface
  - 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

@@ Line 97: / Line 97: @@
 * [[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 ==