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wmonk
Joined: Sep 15, 2008
Posts: 528
Location: Enschede, the Netherlands
Audio files: 15
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 Posted: Sun Jan 24, 2010 2:54 pm Post subject:
MIDI-CV converter and CV Recorder / Sequencer
Subject description: possible small PCB run |
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Dear Friends,
some of us have visited the site www.acoupel.com. As I don't have a MIDI/CV converter now, and the P-Sequencer on that site is way awesome, I'll buy myself some PCBs.
Now is buying PCBs a bit expensive if one only buys one board. So I mailed the designer, Mr. Coupel with a question.
He's ok with offering the PCBs for both projects here 
So before I'm going to translate the sequencer page, and adding some connectors to the PCB, I have a question for you: are you interested in those designs?
A little information about the modules.
MIDI to CV converter
- 3 modes: monophonic, polyphonic 1 channel, polyphonic 4 channels
In polyphonic modes:
- 4 CV out, 4 Gate out and 1 trigger out
Monophonic mode:
- 2x note CV out + pitchwheel
- 3x gate out
- 2x trigger out
- 1x velocity out
- 1x modwheel out
The module uses a PIC16F88, and 12-bit DACs (MCP4822)
http://www.acoupel.com/MIDI%20CV%20Gate/intro_midi%20cv%20gate.htm
P-Sequencer
- Record CV in two tracks
- 2 tracks (A and B). A can have 48 notes, B 44.
- Melodic sequences and sequences at certain intervals
- Transpose sequence A with B or with a CV
- Track B can be played 2, 4 or 8 times as slow as A
- many more.
The module uses a PIC16F88, and 12-bit DACs (MCP4822)
http://www.acoupel.com/sequencer/intro/intro_sequencer.htm
For now: I plan to do a little run of the MIDI-CV converter first, and afterwards the P-Sequencer. That way I can test the sequencer with playing on my keyboard. 
Hope you all like it, and let me know if you're interested.
Cheers,
Wmonk
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EdisonRex
Site Admin
Joined: Mar 07, 2007
Posts: 4579
Location: London, UK
Audio files: 172
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| Posted: Sun Jan 24, 2010 4:44 pm Post subject:
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I would be interested in 2 boards of the P-Sequencer. Nice to see them possibly being offered. I've been on that site a few times, nice stuff there.
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diablojoy
Joined: Sep 07, 2008
Posts: 809
Location: melbourne australia
Audio files: 11
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| Posted: Sun Jan 24, 2010 5:14 pm Post subject:
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could be interested in
the midi to cv
however midi channel selection would
need to be selectable, not automatic on first note,
for multiple units to be usefull.
It would be a bit of a stumbling block for me as its
not much good if they all locked onto the same midi channel
on the first note sent
definitely interested in the p seq would buy a couple of those
maybe 4
cheers |
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wmonk
Joined: Sep 15, 2008
Posts: 528
Location: Enschede, the Netherlands
Audio files: 15
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| Posted: Sun Jan 24, 2010 6:01 pm Post subject:
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| diablojoy wrote: | could be interested in
the midi to cv
however midi channel selection would
need to be selectable, not automatic on first note,
for multiple units to be usefull.
It would be a bit of a stumbling block for me as its
not much good if they all locked onto the same midi channel
on the first note sent |
If you played the wrong on the wrong channel, there is a reset button.
But indeed, it would be nice if one can set them with e DIP switch instead. I'll look into the source code, and look for possibilities there.
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Sun Jan 24, 2010 6:21 pm Post subject:
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| Interested in a board for the P-Sequencer! |
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DGTom
Joined: Dec 08, 2008
Posts: 211
Location: Adelaide
Audio files: 3
G2 patch files: 1
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| Posted: Sun Jan 24, 2010 7:08 pm Post subject:
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I'd be in for 2 - 4 P-Sequencer boards! Exciting development here, much respect to Mr. Coupel for OKing a PCB run & many, many thanks to wmonk!!! |
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The Bad Producer
Joined: Mar 08, 2009
Posts: 282
Location: The Manhole
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| Posted: Mon Jan 25, 2010 8:01 am Post subject:
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Wow, this is great!
I'll just repeat what DGTom said, thanks for making this available... I'd be interested in four P-seq boards for sure...
But would you provide the programmed PICs with the PCB's? I can't write PICs and I don't really fancy getting into that!
Charlie
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wmonk
Joined: Sep 15, 2008
Posts: 528
Location: Enschede, the Netherlands
Audio files: 15
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| Posted: Mon Jan 25, 2010 8:28 am Post subject:
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| The Bad Producer wrote: | But would you provide the programmed PICs with the PCB's? I can't write PICs and I don't really fancy getting into that!
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Hi! I don't have a PIC burner myself, and as I am a linux user, I don't know what programmer to buy to do it. If you all want it, I'll look into it, as I have some ideas for PIC based designs as well.
A note on the amount of PCBs: as I am a student, and I don't have many 'free money' available, I have to put a limit. I am thinking of that now, and of course want to please everyone. If you want pre-burned PICs, the limit has to go down.
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Mon Jan 25, 2010 8:38 am Post subject:
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| A pre-programmed PIC would be really really nice - might even effect if I sign up for a board or not. |
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adambee7
Joined: Apr 04, 2009
Posts: 420
Location: united kingdom
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| Posted: Mon Jan 25, 2010 8:48 am Post subject:
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| I'd be in for two P-seq boards with pics for sure. Nice unique idea for a module. Nice one. |
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nobody
Joined: Mar 09, 2008
Posts: 1687
Location: Not here
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| Posted: Mon Jan 25, 2010 9:09 am Post subject:
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I'm also interested. By the way, most of us probably know this, but Google has a page translation tool. Sometimes you get funny output, but it seems like it is improving with time.
I'm not currently building modular synths, but I am increasingly interested in doing so. I have plans to save up for a Virus TI, and then I think I'll start using my studio cookie jar to start buying modular stuff. |
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glacial23
Joined: Apr 30, 2008
Posts: 32
Location: Cleveland, OH
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| Posted: Mon Jan 25, 2010 9:48 am Post subject:
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I'm interested in two P-Sequencer boards.
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joshco
Joined: Nov 14, 2008
Posts: 55
Location: germany
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| Posted: Mon Jan 25, 2010 10:41 am Post subject:
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Intrested in 2 Midi CV Boards.
Is there a Chance for a DAC groupbuy too, its availavle only at a few shops.
I have a Picprogrammer, still untested, but if its running I would offer to burn some pics, I have also more time on February. |
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wmonk
Joined: Sep 15, 2008
Posts: 528
Location: Enschede, the Netherlands
Audio files: 15
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| Posted: Mon Jan 25, 2010 11:24 am Post subject:
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| joshco wrote: | | Is there a Chance for a DAC groupbuy too, its availavle only at a few shops. |
I agree. The MCP4822 is not available at my regular shops, and I will order a few at Farnell or another shop. DAC groupbuy is for me easier to do then offering the PICs. But then again: more DACs means less PCBs in one run.
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joshco
Joined: Nov 14, 2008
Posts: 55
Location: germany
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| Posted: Mon Jan 25, 2010 11:37 am Post subject:
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| wmonk wrote: | | joshco wrote: | | Is there a Chance for a DAC groupbuy too, its availavle only at a few shops. |
I agree. The MCP4822 is not available at my regular shops, and I will order a few at Farnell or another shop. DAC groupbuy is for me easier to do then offering the PICs. But then again: more DACs means less PCBs in one run. |
Maybe we find someone who would do the DAC Order. I´m willing to do the Pic´s with burnt programmes on to it. |
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wmonk
Joined: Sep 15, 2008
Posts: 528
Location: Enschede, the Netherlands
Audio files: 15
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| Posted: Mon Jan 25, 2010 11:43 am Post subject:
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Sounds like a good idea. Personally I think its good to have the components and pcb in the same package. So we save on shipping. 
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TekniK
Joined: Aug 10, 2008
Posts: 1059
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| Posted: Mon Jan 25, 2010 2:03 pm Post subject:
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| Great! am interested into 2 midi-cv's and probably several sequencer boards (8-10), preferable with dacs,pics and pacs! |
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Luka
Joined: Jun 29, 2007
Posts: 1003
Location: Melb.
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billy pilgrim
Joined: Feb 12, 2008
Posts: 36
Location: nyc
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Posted: Mon Jan 25, 2010 10:02 pm Post subject:
Re: MIDI-CV converter and CV Recorder / Sequencer
Subject description: possible small PCB run |
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| I'm in for one of each. |
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donpachi
Joined: Jul 16, 2009
Posts: 81
Location: Marburg
Audio files: 2
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| Posted: Tue Jan 26, 2010 2:06 am Post subject:
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| I'm interested in one MIDI2CV board. Thanks! |
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henrikgo
Joined: Jul 05, 2008
Posts: 40
Location: sweden
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| Posted: Wed Jan 27, 2010 2:25 am Post subject:
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| I'd like one of each please, preferably with burned PICs. |
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ach_gott
Joined: Sep 09, 2008
Posts: 79
Location: Chicago
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| Posted: Wed Jan 27, 2010 10:18 am Post subject:
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| If PICs are offered, I'd be in for 2 of each. |
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scriptstyle
Joined: Jan 22, 2008
Posts: 250
Location: nj
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| Posted: Wed Jan 27, 2010 12:54 pm Post subject:
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| i am interested in one of each. |
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Appliancide*
Joined: Jul 04, 2007
Posts: 126
Location: Paul lives in a 1920’s film
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neandrewthal
Joined: May 11, 2007
Posts: 672
Location: Canada
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| Posted: Wed Jan 27, 2010 4:50 pm Post subject:
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I'll take 2 P-sequencer boards
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