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simple_cv

EASY CV

Introduction

Digital created LFO+ENV with CV-Output. No Displays, No Menues, Minimal buttons, much Scopes, much Led-Ring-Rotarys (Planed for LRE-8x2CS), one big UI with complete functions for one LFO+ENV Voice… switching between the UI-Voices is done from the BREAKOUTMODULES…to this later

LFO+ENV are mixed together softwareside, to use only one CV-Output. 8xCV-Outputs (VOICES) are supported > if u are on a VCF+VCA-Setup = 4 Voices on the Analog-Side (4xFilterbank) Copy Paste for LFOs and ENVelopes between the Voices. Copy Paste for a Songa aka Preset aka Bank aka Program(change) Roland MC303 Style Pattern load (next Preset Display) + Preset Morph between Current-Preset and Next-Preset.

Breakoutmodules for each CV-Output, with Depth-rotary, Focusswitch (Pushrotary), 2x Scopes (LFO+ENV) and LFO/ENV-Switch to show on one Display the Mixed Waveform & to switch the Rotary to “ENV” or “LFO” Mode…(there is only space for one Encoder) The Depth-rotary has no Ledring, want to display it as a bar in the scope…

Whole thing will not be based on Midibox CV… i will copy code snippets and so on, but there will be not compatibility to MB-CV (such big Software i cant understand)

FrontPanel

General Design

The panel size is 3U, Eurorack compliant

FrontPanel

PCBs

The Analog Circuits (VCF+VCA) get sandwitch as normal (not90° angeled)

3D View of Sandwitches

FIXME make concept

Original Schematics 303

FIXME change against 303

Mods

Mod Sources

Analog Mods

FIXME Fill Table with 303 mods

On-Going

1. UI Parts Listing

BRAIN + BREAKOUT

Value Type Qty
3.5mm Jack Vertical PCB-Mount 13
Switch SPDT Vertical PCB-Mount ON-OFF-ON 1

FIXME Fill Table

Pots / Knobs

Value Type Qty
5K Linear 2
10K Linear 6
50K Linear 6
50K Logarithmic 6
100K Linear 2
1M Linear 3
2M? Linear 2
Knobs Soft/Plastic/Alu31

2. Analog Parts Listing

VCA-VCF-Board

FIXME Fill Table

3.Footprint Making in KiCAD

  • ALPS Pots
  • Alpha Pots
  • 3,5mm Jack
  • Switch
  • Momentary Switch
  • 7 Segment LED Display
  • OLED DIsplay
  • Rotary Encoder

FIXME have to be done

4. Schematics in KiCAD

FIXME have to be done

5.PCB Making In Kicad

PCB Making Order

  1. BRAIN PCBs
  2. BREAKOUT PCBs
  3. FILTER PCBs
simple_cv.txt · Last modified: 2016/07/16 12:31 by phatline