"Peter Hucker" wrote ...
I have a device which makes a "ping" noise on a piezo tweeter
(one of those 10p sized things you get in wrist watches).

Is this (unidentified) "device" something with some power to it?
Or is it something like a wris****ch that runs on a coin cell
for a year?

Is there
any way I can connect this output to some LEDs to flash

Depends on how much power is available (unknown) and
how much power "some LEDs" take (also unknown).

when it makes the noise?

If you want to drive BOTH the piezo AND the LEDs, then
you need even more power.

Why do people point to their wrist when asking for the time,
but don't point to their crotch when asking where the bathroom
is?

Who do people post silly questions to Usenet?