The PicPET is what I use. Input is from a 5v ac transformer. Seems simple to me. I bought a handful of these. Love em.
http://www.leapsecond.com/pic/picpet.htm Doc Sent from mobile > On Feb 9, 2014, at 7:53 AM, "M. Simon" <msimon6...@yahoo.com> wrote: > > This probably came up during the recent discussion of Line Frequency > Monitoring but I may have missed it. > > > Does any one have a circuit (tested - operational) for monitoring line > frequency? I'd like something that checks zero crossing so that it is > relatively insensitive to line voltage variations. > > > Simon > > > Engineering is the art of making what you want from what you can get at a > profit. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
