hi, i have a schematic , that connects up to a knock sensor from a car
engine , ( same thing inside the knock sensor , peizo ?) and flashes a led
when it detects knock..
mark k




"Peter Hucker" wrote in message newsp.uqz2tixhmk2j66@i7...
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 there any way I can connect
this output to some LEDs to flash when it makes the noise?

--
http://www.petersparrots.com http://www.insanevideoclips.com
http://www.petersphotos.com

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?