[sdiy] Piezo keyboard - crumb bumb

[Peter Grenader]

Nah....there's some coating on those switches that makes them non
conductive.  And when I buzzed this out it made perfect sense  these are
made for underwater applications.  I would think salt water would have a
feiegd day with a conductive pressure switch!  If I poke hard with the probe
leads and it gets through it, then they conduct just fine.  As exciting as
the two voltages per key idea was, I think i'm gonna pass.

dang!  I really wanted to do that!