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sonicwarrior
Joined: Dec 22, 2005
Posts: 266
Location: Cologne, Germany
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 Posted: Sat Jun 21, 2008 11:15 am Post subject:
 Groupbuy 4 MIDIbox CV (CORE+AOUT+DINX1+bankstick on 1 PCB)
Subject description: MIDI to CV Interface with 12 bit DAC (2 x MAX525, included in the groupbuy) |
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suital from the sequencer.de forum was so kind to create a single PCB for the MIDIbox CV project.
The thread (in german) for this was:
http://www.sequencer.de/synthesizer/topic-18474.html
More information in english can be found here:
http://www.midibox.org/forum/forums.html/topic,11656.0.html
I'm taking over the bulk order of the PCB in bundle with the necessary MAX525BCPP+.
One set includes 1 PCB and 2 MAX525BCPP+.
If you want a PIC, please let me know. If there is enough interest I will order them, too, and send them to Torsten Klose to burn them.
Instead of the difficult-to-get MAX6007B you can use a LM385-2,5. You'll only need to re-calculate some resistor values.
Costs per set: 35,20 Euro
(Without shipping/package costs)
Keep in mind: I'm located in Germany!
The whole thing works only if I can sell exactly 50 sets! (Because of packaging units)
If someone wants to take part in this buld order please let me know here how many sets you will take.
Deadline is the 30.06.2008 at 20 o'clock (CEST).
List (final):
sonicwarrior: 3 sets
Dave Kenerall: 2 sets
dez: 2 sets
Floppy: 3 sets
ijed: 1 set + PIC
Luka: 2 sets + 1 PIC
Rvlt: 2 sets + PICs
Left: 0 sets
Here is a pic of the PCB (3D model):
Last edited by sonicwarrior on Tue Jul 15, 2008 12:09 pm; edited 4 times in total |
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Danno Gee Ray
Joined: Sep 25, 2005
Posts: 1351
Location: Telford, PA USA
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| Posted: Sat Jun 21, 2008 4:31 pm Post subject:
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| What would be the cost in US dollars for a set with a PIC shipped to US Zip Code 18969? |
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factus10
Joined: Jun 20, 2007
Posts: 158
Location: Buffalo, NY
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| Posted: Sat Jun 21, 2008 5:29 pm Post subject:
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| Danno Gee Ray wrote: | | What would be the cost in US dollars for a set with a PIC shipped to US Zip Code 18969? |
At today's exchange rate (www.xe.com), it's about $51 for the pcb etc.
If I recall correctly, postage for Fonik's PS3100 pcb was about $8.
_________________
Nothing succeeds like excess. |
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3vcos
Joined: Oct 26, 2006
Posts: 107
Location: California
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Posted: Sat Jun 21, 2008 6:46 pm Post subject:
Re: Groupbuy 4 MIDIbox CV (CORE+AOUT+DINX1+bankstick on 1 PC
Subject description: MIDI to CV Interface with 12 bit DAC (2 x MAX525, included in the groupbuy) |
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The links listed seem to be dead....
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Peake
Joined: Jun 29, 2007
Posts: 1113
Location: Loss Angeles
Audio files: 3
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| Posted: Sat Jun 21, 2008 7:24 pm Post subject:
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I've never been able to find out if there are any LFOs in the CV, if they can be controlled in software via pressure or mod wheel, or if they can be summed with the note/pitch bend channels. Or if like in the SID, LFOs can be individual outputs (solo, "minus notes").
The SID CV out capabilities appear to only carry two channels and multiple LFOs/Envs to fill the eight available channels, and the MIDIbox CV is only "note" type outputs. One doesn't have enough "note" channels, and one has too many, at least as far as I can tell. Am I missing something? I've been all over the wiki and ucapps and forum and can't find out. |
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factus10
Joined: Jun 20, 2007
Posts: 158
Location: Buffalo, NY
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| Posted: Sun Jun 22, 2008 6:12 am Post subject:
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| Peake wrote: | | I've never been able to find out if there are any LFOs in the CV, if they can be controlled in software via pressure or mod wheel, or if they can be summed with the note/pitch bend channels. Or if like in the SID, LFOs can be individual outputs (solo, "minus notes"). |
It's my understanding that the Midibox CV is a midi to control voltage converter. Since the architecture is open, you could probably program an LFO in the PIC and have it respond to MIDI.
_________________
Nothing succeeds like excess. |
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Dave Kendall
Joined: May 26, 2007
Posts: 421
Location: England
Audio files: 3
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| Posted: Sun Jun 22, 2008 6:55 am Post subject:
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That's great news  !
and 35.20 euro *including* the 2 max 525s is amazingly cheap!!!!!!!!
Compare that to the 8-bit paia MIDI2CV with fewer outputs and high power draw (200mA + ) at $122 (which, OK is a complete kit, but really needs CV smoothing on the Continuous controller outputs, unless Pitch bend range is only a few semitones or so... the midibox CV is in a different league altogether....)
Put me down for 2 sets to help get it going. As I haven't got a PIC burner, or the necessary knowhow, pre-burned PICs would be very welcome too.
I suspect that many people here are in a similar situation too ,and would find a PIC option useful.
If there was a way to get an SHX8 hooked up I'd go for several more. (I wish I was a coder sometimes.....) It's my understanding that so far, only the midibox64 supports the SHX8.
Thanks for doing this sonicwarrior - I hope people realise how really cool this project is and help make it a reality.... roll on 50 pre-orders! ' '
cheers,
Dave ( all enthusiastic again ) |
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sonicwarrior
Joined: Dec 22, 2005
Posts: 266
Location: Cologne, Germany
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Posted: Sun Jun 22, 2008 6:56 am Post subject:
Re: Groupbuy 4 MIDIbox CV (CORE+AOUT+DINX1+bankstick on 1 PC
Subject description: MIDI to CV Interface with 12 bit DAC (2 x MAX525, included in the groupbuy) |
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| 3vcos wrote: | | The links listed seem to be dead.... |
No, they work at my browser.
| Danno Gee Ray wrote: | | What would be the cost in US dollars for a set with a PIC shipped to US Zip Code 18969? |
US dollar price changes every day so I can't give you the price in US dollars.
For the PIC the price depends on how many people will buy a set with a PIC.
Shipping costs should be 8 Euro without tracking. For tracking add 2,05 Euro.
If you pay per PayPal you'll have to pay the fees.
@Peake:
Why do you think the CV outputs are only for note events? 
The feature list on UCapps says:
| Quote: | | Outputs can be assigned to 16 MIDI Channels and Note/Velocity/Aftertouch/CC/NRPN/Pitchbender events |
There is no LFO in the standard application (see the feature list again). |
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Peake
Joined: Jun 29, 2007
Posts: 1113
Location: Loss Angeles
Audio files: 3
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Posted: Sun Jun 22, 2008 7:42 am Post subject:
Re: Groupbuy 4 MIDIbox CV (CORE+AOUT+DINX1+bankstick on 1 PC
Subject description: MIDI to CV Interface with 12 bit DAC (2 x MAX525, included in the groupbuy) |
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| sonicwarrior wrote: | @Peake:
Why do you think the CV outputs are only for note events?
The feature list on UCapps says:
| Quote: | | Outputs can be assigned to 16 MIDI Channels and Note/Velocity/Aftertouch/CC/NRPN/Pitchbender events |
There is no LFO in the standard application (see the feature list again). |
Thanks, I've seen that and wanted confirmation regarding the lack of an LFO of any sort. It's a fine unit, but lacks something that I find very important: at least one LFO that can be MIDI synch'd or freerun, assigned to its own output if desired ala' the SID features, OR used within a "note" channel or polyphonic channels, and scaled dynamically via pressure, mod wheel, or other controller. Summed with the note value and pitch bend value, all on the same CV output. It saves using another output for mod wheel or pressure output and then using a hardware VCA and LFO, plus possibly a mixer to sum that with the note CV into an oscillator/oscillators...
I have no idea how easy or difficult it would be to add, or if there is room (not much info on which PIC is used!!!) I also don't know how to ask for it nicely- sorry for using your thread to do discovery and feature requests.
I am in no way attempting to diminish the MIDIbox CV- it's an amazing alternative to some of the nonsense going on in the boutique world of synths etc. The MIDIbox SID, used only for CV, sounds more like what I'm after in a stand-alone converter- and I have an AOUT waiting for use with the SEQ I'm building (I'm waiting on an UltraCore. I love these project-specific initiatives.).
I'm hoping that the CV will continue to evolve and be of such benefit to the community. Thanks for the kit and posting the offer around the web. I'm sorry if my hammering for the features that I want is taken as detractory by -anyone-. I wouldn't be building these things if they weren't the bee's knees! |
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Luka
Joined: Jun 29, 2007
Posts: 1003
Location: Melb.
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sonicwarrior
Joined: Dec 22, 2005
Posts: 266
Location: Cologne, Germany
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Posted: Sun Jun 22, 2008 8:11 am Post subject:
Re: Groupbuy 4 MIDIbox CV (CORE+AOUT+DINX1+bankstick on 1 PC
Subject description: MIDI to CV Interface with 12 bit DAC (2 x MAX525, included in the groupbuy) |
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| Peake wrote: | | feature requests. |
I don't think Torsten Klose reads this thread so it's better to ask for an LFO feature in the MIDIbox forum itself.
The PIC I'll ship if there is enough interest (will be about 7 Euro I guess) is a
PIC 18F452-I/P.
As TK programmed a whole sequencer with this PIC I guess the should be enough space left for the LFO feature.
Edit: I found a thread in the MIDIbox forum regarding the LFO feature:
http://www.midibox.org/forum/forums.html/topic,3853.0.html |
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Peake
Joined: Jun 29, 2007
Posts: 1113
Location: Loss Angeles
Audio files: 3
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| Posted: Sun Jun 22, 2008 9:23 am Post subject:
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Thank you for the information! Knowing that it won't happen helps me to set my own course- and even as TK said three years ago, the SID>AOUT sounds like what I'm after- in general.
Thanks for the project! |
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crashlander42
Joined: Oct 21, 2006
Posts: 292
Location: Orlando, FL (US)
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sonicwarrior
Joined: Dec 22, 2005
Posts: 266
Location: Cologne, Germany
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| Posted: Sun Jun 22, 2008 12:18 pm Post subject:
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| crashlander42 wrote: | | Does that board include the bipolar CV addition for the Aout? |
No, but it includes the headers to allow this modification.
It wasn't included because it would have meant 4 more resistor and 1 more trimmer per output which makes a total of 32 resistors and 8 trimmers more.
This would have blown up the PCB too much because there are many who don't need this optionl. |
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Rykhaard
Joined: Sep 02, 2007
Posts: 1290
Location: Canada
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| Posted: Mon Jun 23, 2008 9:10 am Post subject:
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Wow. How time flies. Coming this December, I will have had the parts for the MIDIbox SEQ V2.00 for 2 years and it`s not yet completed.  It`s 75% done, with just a little bit of mechanical left to do before the wiring. That`s what`s kept me back.
Now - I`m faced with the wiring of the SEQ 2 as well as the Klee!  LOL
Wishing I could have a couple of weeks of time to do nothing but build.
My specific purpose FOR the SEQ V2 though (which I`ll upgrade to the latest V3.2) will be CV sequencing. I`ll have no use for the MIDI sequencing portion, at this time in life. |
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CJ Miller
Joined: Jan 07, 2007
Posts: 368
Location: 127.0.0.1
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| Posted: Mon Jun 23, 2008 12:44 pm Post subject:
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| Rykhaard wrote: | Wow. How time flies. Coming this December, I will have had the parts for the MIDIbox SEQ V2.00 for 2 years and it`s not yet completed. It`s 75% done, with just a little bit of mechanical left to do before the wiring. That`s what`s kept me back.
Now - I`m faced with the wiring of the SEQ 2 as well as the Klee! LOL |
I can relate! I have about 30 or so modules here which aren't connected to any hardware. Not including several Midibox projects. Two EFM SEQ2 boards. A Klee. Not to mention several repairs, drum machine mods, and overhauling of several bent toys.
Safe to say that I enjoy assembling the electronics much more than panels... I never have matching pots, knobs, the right switches. My drill bits have disappeared. An entire project gets lost in the clutter. I lose a few values of components. Arg... I spent a few hours cleaning the basement this weekend, so at least the lab isn't quite so bad now. |
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sonicwarrior
Joined: Dec 22, 2005
Posts: 266
Location: Cologne, Germany
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| Posted: Mon Jun 23, 2008 1:39 pm Post subject:
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| Would be nice if you could stay on topic. |
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Floppy
Joined: May 09, 2008
Posts: 66
Location: Berlin
Audio files: 2
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| Posted: Mon Jun 23, 2008 3:38 pm Post subject:
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| i would like to take 3 please |
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Rvlt
Joined: Mar 05, 2008
Posts: 33
Location: Berlin
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| Posted: Mon Jun 23, 2008 6:37 pm Post subject:
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I would take 2 sets + 2 PICs.
Thanks! |
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Luka
Joined: Jun 29, 2007
Posts: 1003
Location: Melb.
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ijed
Joined: Oct 28, 2007
Posts: 2
Location: melbourne, australia
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| Posted: Thu Jun 26, 2008 8:41 am Post subject:
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| 1 Set + pic pls |
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Dez
Joined: May 05, 2008
Posts: 8
Location: Brooklyn
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| Posted: Thu Jun 26, 2008 10:46 am Post subject:
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| I would take 2 sets + 2 PICs |
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sneakthief
Joined: Jul 24, 2006
Posts: 569
Location: Berlin
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| Posted: Fri Jun 27, 2008 1:50 am Post subject:
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| Peake wrote: | I've never been able to find out if there are any LFOs in the CV, if they can be controlled in software via pressure or mod wheel, or if they can be summed with the note/pitch bend channels. Or if like in the SID, LFOs can be individual outputs (solo, "minus notes").
The SID CV out capabilities appear to only carry two channels and multiple LFOs/Envs to fill the eight available channels, and the MIDIbox CV is only "note" type outputs. One doesn't have enough "note" channels, and one has too many, at least as far as I can tell. Am I missing something? I've been all over the wiki and ucapps and forum and can't find out. |
the CV outputs of the MIDIbox CV can be assigned to Note, CC or velocity.
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Sneak-Thief - raw electrofunk |
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Peake
Joined: Jun 29, 2007
Posts: 1113
Location: Loss Angeles
Audio files: 3
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| Posted: Fri Jun 27, 2008 10:33 am Post subject:
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| sneakthief wrote: | | the CV outputs of the MIDIbox CV can be assigned to Note, CC or velocity. |
Thanks sneakthief. I'm trying to get some bucks together for this groupbuy. |
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sonicwarrior
Joined: Dec 22, 2005
Posts: 266
Location: Cologne, Germany
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| Posted: Sun Jun 29, 2008 5:01 am Post subject:
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| Dez wrote: | | I would take 2 sets + 2 PICs |
I'm sorry, but the sets are now all spoken for.
I can set you at the first place on the waiting list if someone jumps off, doesn't pay in time or something like that. |
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