At 09:46 AM 20/12/95 GMT, you wrote:
>I've just started using PIC devices (in fact, I'm almost entirely green
>at any sort of electronics).  Having done "flashing LED" and "buzzing
>speaker", I'm ready to build something a little more useful, a digital
>metronome.
>
>Does anybody know how to produce a reasonably loud "click" from a
>3V battery powered circuit?  I tried sending a square pulse to a
>teensy weensy miniature speaker, but it's very quiet.
>

Instead of a click, try getting a very short beep - just a few cycles worth.
If the 3V is not enough you could use an H bridge to drive it. Two LM 386s
or something similar should do it.

Prashant
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