Hi Don, After Tom referred to the app note, I went and looked it up. While it is functional I would, by no means, ever suggest anyone actually use that method. It presents the possibility for personal injury and circuit failures. Even for a skilled veteran, all it takes is one thoughtless moment and you could have some serious problems.
What surprises me is that ATMEL treated it so cavalierly and even allowed such a publication. At the very least, the schematic should have had additional treatment to indicate the seriousness and shown some method of the resistors being physically mounted to a power plug that was protected from being touched. They did mention the problem but just barely. Shame on them ! Bill....WB6BNQ Don Latham wrote: > Here is at least one interesting possibility: > http://www.atmel.com/dyn/resources/prod_documents/doc2508.pdf > 1 pps into another input to say your friendly Arduino, and a little > programming... > Don > > Pete Lancashire > > Someone mentioned a modern chip for detecting zero crossing. > > > > I seem to have deleted it > > > > Anyone have it ? > > > > -pete > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > -- > "Neither the voice of authority nor the weight of reason and argument > are as significant as experiment, for thence comes quiet to the mind." > R. Bacon > "If you don't know what it is, don't poke it." > Ghost in the Shell > > Dr. Don Latham AJ7LL > Six Mile Systems LLP > 17850 Six Mile Road > POB 134 > Huson, MT, 59846 > VOX 406-626-4304 > www.lightningforensics.com > www.sixmilesystems.com > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
