[sdiy] Piezo keyboard

[john mahoney]

----- Original Message ----- 
From: "Peter Grenader"
>
> Can't do that!  These things look like museum pieces.  I couldn't live
with
> myself If I did that.  Here's a picture:
>
> http://www.buzzclick-music.com/piezo.jpg
>
> See what I mean? Now, imagine those mounted into clear anodized aluminum
> with just those shallow disks sticking up a 1/16 th.  Too cool.
>
> Anyway, they are as aluminum as aluminum foil will ever be.  I could
always
> polish off their anodize and have the same scenario as the foil.

Wow! As my friend Zyg would say, those are beautious! :-) I can picture them
arrayed in white Plexiglas for a 1970s Sci Fi movie look.

These can be wired as capacitive touch switches, right? (Shirley?) And that
wouldn't interfere with the pressure sensitivity.

I don't know if the anodizing has to be removed or not -- is it an
insulator? Since it's a natural color you wouldn't see much difference
either way. However: Bare aluminum gets covered by a thin, black oxide that
isn't very visible -- until it's all over your fingers. Yuck!
--
john