It only has 1 lead!  (-: =20

I've tried with a PWM wave.  If I plug the positive red lead to the =
output pin and touch a negative wire to the smooth, shiny backside, it =
buzzes nicely, I think.

>=20
> if it only has 2 leads, you probably connect one to positive and
> one to
> negative, obviously i'd try red positive first.  if it has 3
> leads, you
> need a feedback circuit to drive it (these aren't very common).
> if it's
> just a piezo transducer and not a buzzer, you'll just get a
> click unless
> you send it a more interesting waveform than just turning it on.
>=20

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=20

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