====== 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 =====

{{ :neonking:tr-606-4-mini.jpg?direct&700 |}} FIXME change against 303

===== Mods =====

=== Mod Sources ===

=== Analog Mods ===
FIXME Fill Table with 303 mods

===== On-Going =====

==== 1. UI Parts Listing  ====

=== BRAIN + BREAKOUT ===

  * [[https://www.thonk.co.uk/shop/3-5mm-jacks/| Jacks 3.5mm @ Thonk]]
  * [[http://at.rs-online.com/web/p/kippschalter/7347145|SPDT Switch ON-OFF-ON @ Rs-components]]
  * [[http://fr.rs-online.com/web/p/connecteurs-din/7105537/| Mini DIN 4 poles @ Rs-components]]

^ Value     ^  Type                    ^ Qty  ^
|3.5mm Jack |Vertical PCB-Mount        |13    |
|Switch     |SPDT Vertical PCB-Mount ON-OFF-ON   |1     |
FIXME Fill Table

=== Pots / Knobs ===

  * [[http://www.alps.com/prod/info/E/HTML/Potentiometer/RotaryPotentiometers/RK11K11/RK11K11_list.html|Alps RK11K Series]]
  * [[https://www.thonk.co.uk/shop/alpha-9mm-pots/|Alpha Pots @ Thonk]]
  * [[where_to_order_components#knobs|Knobs Suppliers]]

^ 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/Alu|31    |


==== 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 ===
  - BRAIN PCBs
  - BREAKOUT PCBs
  - FILTER PCBs