On Mon, May 12, 2008 at 9:48 PM, Michael D. Petersen <[email protected]> wrote: > I use it for monitoring the amount of time my well pump runs: > http://www.edn.com/contents/images/6466210.pdf > > It basically sits across the pump motor and counts 60Hz line > cycles. My OWFS box polls and stores the count every > minute. Figuring the total running time (in seconds) is as simple as > subtracting the beginning and ending count over the time interval of > interest and dividing by 60. The only problem is when the power goes > out and the counter resets... Haven't yet UPS'd my 1-wire bus! > > Michael > > > At 10:58 PM 5/11/2008, you wrote: >>Hello! >>Obviously, Paul this part is indeed supported inside OWFS, that much >>is obvious from previous explorations. >> >>However, can the group indicate if they've actually gotten this >>particular device to do, ah, something? >> >>I grok that the only application I was aware of was something with the >>weatherstation that the firm built. >> >>However, the firm (Now Maxim) indicates a use for it, via their >>controllers (not Tini) for building a bicycle computer. That by the >>way is described here, http://tinyurl.com/yap367 of course they even >>give a splendid >> idea for making use of the DS2423, one I suspect I shall make use of. >> >>But the fact remains, so far the only idea that has surfaced, to me >>anyway, is from the company themselves. >>--
Hello! Mike, if you're still here, I've gone ahead and reviewed the design idea, and I now see one interesting issue there. The chosen opto-isolator does not have a part number assigned to it. It could be a 4N35 (specific part number chosen from a series.) or it could be any from that series. There's also a type of isolator designed for sensing the changes in an AC circuit, the H11AA1 series. It is rather rare now. I am looking at using the circuit to monitor the changes on a P/S transformer. ----- Gregg C Levine [email protected] "This signature was once found posting rude messages in English in the Moscow subway." ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
