AVR-Chat

Hi all,

I am looking an alarm type switch and am thinking of using a Tiny11 
to generate a pulse of something like 10khz and then send that thru 
the 6 to 10 switches (in series) and then use the same Tiny11 to 
detect that pulse.  Any switch opens and the pulse is lost.

An alternate is to use a pair, one to generate and one to detect.

BTY, does anyone know if there will be another group buy ?

Dave