[sdiy] DIY d-beam

[harrybissell]

Google Marjan and Synthesizer and you'll hit Marjan Urekar's
site, where the d-beam partial schematic is located.

I don't remember any other IRs lately... but there was a discussion of
Q-prox technology (capacitive sensing switches) and someone on the
list did a little playing with them.

There is some ultrasonic modules that can do distance sensing, using the
old technology developed by Polaroid for auto-focus. They would be sweet
to use, but who knows on stage ???

H^) harry

Richard Wentk wrote:
> 
> Someone posted a link here a few days ago.
> 
> Could someone post it again please?
> 
> Also if there are any other clues for opto- or IR-proximity sensing, that
> would be useful. I *know* I saw some D-Beam-like all-in-one detectors for a
> reasonable price a while back, but I forgot to bookmark the page and now I
> have no idea where. :(
> 
> Richard