[sdiy] Duplex LED controller, was iPod click wheel

[Harry Bissell Jr]

You could pulse the LEDs at like 40KHz and use
bandpass filtering with syncronous detection.

That would really improve the ability to reject
ambient light. Bright white light would be a bad
thing.
In sunlight I bet it cannot be made workable...

H^) harry

--- jays at aracnet.com wrote:

> One question I have is about the ambient light.
> Looking at the pictures it seems that they are using
> this in a dimmed room.
> 
> Wonder how well it works under normal lighting
> conditions?
> 
> Some of the guitar distortion circuits use LEDs as
> limiting diodes. In that application there has been
> mention of painting the LEDs with a opaque paint so
> light doesn't effect them. Think Harry has mentioned
> this before too.
> 
> Jay S.
>