Attached is a crude software only timing Morse Code program that uses a Piezio Buzzer for out put. I did not use the timer interrupt because I used as drop in debugging code. It works great if you know the code. and not bad if you don't. I have some much smaller, faster and non- portable versions. Gordon Gordon Couger gcouger@rfdata.net 624 Cheyenne Stillwater, OK 74075 405 624-2855 GMT -6:00 -----Original Message----- From: Ken Pergola To: PICLIST@MITVMA.MIT.EDU Date: Saturday, May 09, 1998 9:53 PM Subject: Re: Piezio Buzzer for debugging? >Sean Breheny wrote: > >> ...After all, a 1Hz signal would not excite a piezo element very well >> and it also wouldn't be very audible :) ... >> > >Actually, switching a standard piezo disc (no built-in oscillator) on and off at >a 1 Hz rate is *very* audible. (However, the resulting clicks are well into the >human audible range). > >Ken Pergola Content-Type: application/octet-stream; name="Cw.c" Content-Disposition: attachment; filename="Cw.c" Attachment converted: wonderland:Cw.c (????/----) (000072D0)