[sdiy] super-nice LED interface ..

[Ian Fritz]

At 07:22 AM 10/13/05, Jay Vaughan wrote:

>any of you hardware guru's got idea's for how this could be done in a nice 
>affordable way?  are the LED's themselves being used for feedback, or is 
>it an LED/LDR combo .. i can't quite tell, but i sure wish i knew, i sure 
>wish ..


Jay --

The array has alternating emitters and detectors, both make from LEDs.  The 
finger causes light from the emitters to hit the detectors.

   Ian