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cv1

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CV-1

CV-Recorder/Looper & CV-Generator
Control Voltage Recorder, Looper, and Generator - for a own Eurorack-Line… more in Future!

–this picture is the first prototype - pre-Eurorack :-D

Features

* A Envelope which can be Recored from an AIN-Source, it can be Editet on Startpoint,ATK-Playbackrate, Decay-Playbackrate
* LFO which Waveform is stepless morphable from Sine Square Tri Saw-Up to Saw-Down…(only Clocksynced!)
* MSQ MotionSequencer to loop a CV-Signal.
* A Mixer Page which Mixes/Mutes ENV+LFO+MSQ - and scales the output CV
* Copy, Paste, Clear: to Transfair the CV Sequence to other CV1 Instances
* ProgramChange Load and Store on microSD-Card, Load and Store are CC-Commands, so you can remote the device
* The Sequencer can be set to Tact Systems: 3/4 4/4 5/4 7/4 9/4 11/4 13/4

Hardware Requirements

Midibox:

  • no other PCBs needet - but expandable with other Eurorackmodules in Future
  • µSD-Card, formated with FAT32
  • Soldering Iron - with a Dip that can Handle SMD-Parts, Wires, solder Paste for the µC….
  • Eurorack Power Source +-12V AND +5V!

Set

Cabeling

Midi IN1 »> CV1 Remote Device or a Midi-Sequencer
Midi OUT »> to a Global CV1 Remote Device FIXME - which will need a lot of Midiinputs M16?

  • @JMidi1: connect your Sequencer to get Midiclock and Programchanges
  • @JAIN1: 2 CV Inputs - 12V tollerant
  • @JAUT3: 1 CV Output - (internal DAC with Protection Cirtuit > 12V Tollerant)
  • @J19:Get up to 8 CV-Outputs, with a AoutNG
  • @JLCD1: up to 4 Additional OLED-Displays (decidet Reset Lines - so no additonal Circuit needet
  • @J89: DIN and DOUT Shiftregister Chain: thought for decidet Expander Modules (which will come in near future
  • @J2/Bootload: If the core is not starting up - because of bad-Firmware, then bridge this Jumper to come into the Bootload-Mode

Software

Firmware

FIXME Firmware not made yet

Building



Frontpanel

FIXME - Eurorack Alu-Plate

Case

BOM

FIXME - this is not the right boom - it is a placeholder for the MOMENT!

Ref Qty Value Footprint MouserPart
C1 – C7 7 100nF 0603 Capacitor 81-GRM33C71C104ME14D Mouser
Rec–1 – Rec—4, UI–5 UI—4, led1, -1 -2 -3 -4 11 REC, LED, beat, CC-IN, 0603 LED 630-ASMT-RR45-AQ902 Mouser
1-16 (LED-BAR) 64 bar 0603 LED 755-SMLEN3WBC8W1 Mouser
D64 D65 2 1N-4148 1206 Diode 833-1N4148W-TP Mouser
PTC1 1 Thermistor_PTC 1206 Resistor 576-1206L150THWR Mouser
R1, R2, R19 – R34 18 10K 1206 Resistor 603-AC0603FR-0710KL Mouser
R3 R5 R6 R7 R8 5 47 1206 Resistor 603-RC0603FR-0747RL Mouser
R9-R14, R36, R37 8 220 1206 Resistor 603-RC0603FR-07220RL Mouser
R15 R16 2 1K 1206 Resistor 603-RC0603JR-071KL Mouser
R17 R18 2 4K7 1206 Resistor 603-RC0603FR-074K7L Mouser
OUT1 1 Midi DIN-8-SDF-80J 490-SDF-80J Mouser
M1 1 DIPCORE32_CMPNT_48P517-929870-01-20-RA DIP-40 Mouser
S8 1 Shift DT6 611-D6R00F1LFS Mouser
S1 – S4 1 Part1 611-SERWHAUOA DTL2-1-LED Mouser
S5 – S7, S9 – S10 6 X,C,V,Len,Pre,Tac 611-SERRDAUOA DTL2-1-NO-LED Mouser
ENC1 1 ENC_BOURNS_PEC11 ENC_BOURNS_PEC11+SW 652-PEC11R-4215F-S24 Mouser
IN1 IN2 2 Midi Midi-Socket-MAB5SH-DIN-5566-MAB5SH Mouser
Foot1 1 Pin
J2 1 BootLoad
AIN1 1 PIN
U1 U2 2 6N136 SMDIP-8_W11.48mm 782-6N136-X009 Mouser
-595 3 74HC595 SO-16-N 621-74AHC595S16-13 Mouser
U3 U4 2 74LS165 SO-16-N 595-SN74LS165ADR Mouser
M2 1 µSD_DM3ATDM3AT ΜSD_DM3AT 798-DM3AT-SF-PEJM5 Mouser

To Do

a housing/case or frontplate

Resources

Community users working on it

  • Phatline = Programming, Documentation…

Just let a Private message on the forum to user already involved.
I have 10 ProtoBoards here - i test one, and if it works, i can share them for Beta Testing-if you pay the postage

cv1.1609377736.txt.gz · Last modified: 2020/12/31 01:22 by phatline