ComputerVoltageSources

I have to say again Dave, that MIDI SYSEX trick for the display is just brilliant.

--- In ComputerVoltageSources@yahoogroups.com, "djbrow54" <davebr@...> wrote:
>
> --- In ComputerVoltageSources@yahoogroups.com, "data2action" <rdrake@
> ...> wrote:
> > in terms of core functionality, a full featured LCD display seems 
> > like icing on the cake rather than critical feature, at least to me. 
> 
> I believe it will be fully optional.
> 
> > frankly, i'd be completly satisfied with a few LEDs to display a 
> > program number in binary, a la the miniwave... perhaps that's a 
> > spartan extreme, but there ya are.
> 
> That's how I started.  Where a display really helps is setting input 
> controls.  For example, one program uses a control to offset a 
> waveform and another control to set duty cycle.  I ran this program 
> without a display but it is much nicer to now know what these controls 
> are actually set to.  Also, I could never remember what program was 
> loaded.  Every time I turned on my synth, I'd have to load the program 
> I wanted into the module since I couldn't remember what was there.  
> Sounds simple but it is a nice feature to display the program name.
> 
> > a second consideration is programming complexity & compatibilty.
> 
> Couldn't be simpler.  The hserial system allows strings.  The 
> following command sends a message to the display:
> 
> hserout [$f0,$7d,"Your message goes here",$f7]
> 
> Using MIDI sysex to communicate with the display, programs written for 
> a display will function without modification on systems without 
> displays.
> 
> Dave
>