[sdiy] super-nice LED interface ..

[Jaco Sloof]

Hi list,
<inline>

--- Jay Vaughan <jv at access-music.de> wrote:

> >The array has alternating emitters and detectors, both make from
> >LEDs.  The finger causes light from the emitters to hit the
> >detectors.
> 
> but .. all LED's are on in that demo, so does this mean that the 
> array has LED's that are 'off', but still being used as a detector, 
> or does it mean that LED's can be used as detectors even when lit?

Maybe all led's are turned on and off (or switched between Lightsource and
lightdetector) so fast that its not recorded (29 fps mpeg?). If I would make
such a device, I would do it that way too. Twice the resolution. Or, One Row of
leds is used as emitter, and the next row detects the "fingerglow". Not sure
how the rows on the side would be measured then.

> 
> i'm really curious about the feasibility of this design, however it 
> works, for a properly working interface .. so if anyone gets it in 
> their head to get working on such a thing, count me in as a software 
> hacker/user who would like to take things past the 'last mile' in 
> software, should that be needed ..

I would absolutely LOVE this being implemented as a mouse, or a simple X-Y-pad,
or a PItchbend/Modwheel combo, or a ROland D-2 clone thingy (make that Korg
ChaosPad clone thingy), or .. <insert handy pc-periferal/midi controller here)

>
> -- 
> 
> ;
> 
> Jay Vaughan
> 
> 

Greets, Jaco Sloof


		
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