> Piezo speakers can generate a voltage? :-O

I bumped into a friend of a friend this morning which reminded
me that I made some modifications to their baby monitor. It was
a couple of small piezos that went under the baby. Each was
sandwiched between plastic plates about 200mm square, and
they generated suprisingly high AC voltage peaks, ~40V IIRC,
from moderate movements

Tomas, you are going to write some annoying little tunes for the
game aren't you ?

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