Casio CZ/ VZ/ FZ - Pro Series

The UP pulse connects the two terminals of the UP button for a short
interval. A waiting interval before the next pulse is required so that
the CZ has time to digest it. I will investigate how short the
intervals can be. Anyway, changes too quick won't get lost, I'll store
the input in an accumulator and output it as quickly as possible.

Sliders are nice if you have one for each parameter. Rotating encoders
are better for sharing between many parameter as they have no absolute
position.

--- In CZsynth@yahoogroups.com, "Mark Rauch" <billbigrig@...> wrote:
>
> Howdy,
> 
>  This has intrigued me for years. To make a pulse generator that will 
> take the place of up/down, etc. Just hold a parameter and move a 
> slider. Much handier. The question is, what kind of pulse or signal 
> is required for up and what is required for down? 
> Rig
> 
> --- In CZsynth@yahoogroups.com, Andy Joyce <kingvidiot83@> wrote:
> >
> > Can't you do this via an external data slider (any MIDI box or 
> keyboard) mapped to a CC on the CZ-1? M-Audio, Novation, and others 
> have several small controllers to accomplish this. 
> >    
> >   Anyone try this first?
> > 
> > jdcx64 <jdcx64@> wrote:
> >           Ingredients: small PIC, high-res encoder, 2 x isolating 
> optocouplers,
> > some software on the PIC.
> > 
> > I'm looking for a source of high-res encoders. If I do this project
> > for myself I'll try to sell some on Ebay and save cash for a cute 
> CZ-101.
> > 
> > My only question is: how fast can UP / Down key presses be made? 
> (key
> > debouncing software on the CZ limits the maximum rate) Will it be 
> fast
> > enough? (after a quick turn of the encoder the value will take some
> > time to update)
> > 
> > --- In CZsynth@yahoogroups.com, "Giles Thompson" <giles@> wrote:
> > >
> > > oh man i would kill for this. any details would be appreciated.
> > > chur
> > > 
> > > > I really want a knob/wheel to program the CZ.
> > > >
> > > > I gave up on reverse-engeneering approaches but thought of a 
> simpler
> > > > and more universal solution: a little PIC reads the rotation of 
> an
> > > > encoder and outputs the corresponding +/- key presses at high 
> speed to
> > > > the keyboard interface, using a pair of opto-couplers.
> > > > Has anyone done this, is it available anywhere?
> > > >
> > > > Joaquim
> > > >
> > > >
> > >
> > 
> > 
> > 
> >                          
> > 
> >        
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>