[sdiy] programmable synth module

[harrybissell]

I can do the PCB layout...

H^) harry

john mahoney wrote:
> 
> > > So, what can be improved over the PSIM-1?
> 
> > My two cents:
> >
> > -- Attenuators on the inputs, with the input jacks normalled to 10V.
> > This would make for easy manual parameter setting without having to
> > patch in a joystick or other bias source.
> > -- Full-scale and attenuated outputs, to ease working with modules
> > that are deficient in input attenuators.
> >
> > That little LCD display looks really nice, too. :)
> >
> > Woody
> 
> Good ideas, Woody. Input attenuators and CV sources are more of an
> implementation issue, but symantics aside, I'd like to have that in front of
> my PSIM. (Wiard joysticks also make excellent input devices, I bought one
> from an AHer not too long ago.) Output attenuators would also be handy. Of
> course, we could say the same thing about a lot of modules.
> 
> I forgot about the LCD display. Definitely nice.
> 
> Excellent comments from Harry, too. As far as a serial port connection to
> the PC, that's how the PSIM-1 works (you can use a cheap USB-to-serial
> adapter) and it's fine. Certainly less trouble than using MIDI, since the
> development tools are made to use the serial interface. :-)
> 
> Yes, a kit would be nice. Best of all would be a sort of open source group
> effort. Want to etch your own PCB? Fine, somebody has free artwork that you
> can download. Want to buy a PCB? Somebody happens to sell them. Software?
> Developed by the group and shared freely. That's the dream, anyway. I hopt
> that we can find a critical mass of people who agree on the specs for such a
> module, then we can proceed from there.
> 
> I'll be the documentation guy, at least for now, as long as the discussion
> is giong somewhere. This means that I'll summarize the collective comments
> every so often as we (hopefully) mold the specs into shape.
> 
> I am confident that there's enough expertise on this list to pull this off.
> It's been done before...
> --
> john