Martin Kirk (mlk@ASU.EDU) wrote:

>how about some clever (meaning cheap/simple) ideas for PIC
>sense zero crossing from the transformer secondary.

Martin:

If you're REALLY brave, check out AN521, "Interfacing to AC Power
Lines", in the Embedded Control Handbook.

-Andy

--
Andrew Warren - fastfwd@ix.netcom.com
Fast Forward Engineering, Vista, California