You inspired me to hook up my moisture meter. As Mathias points out, the properties offered reflect different possible setups for the DS2760. Unfortunately, we don't have the definitive formula for offering a moisture variable.
The DS2760 has 16 pins and a bunch of measured variables. See http://datasheets.maxim-ic.com/en/ds/DS2760.pdf This includes memory, current, voltage, temperature and a PIO. In my case a dry sensor at 21.65C measure a current of -0.129375 The supply voltage is measured at 4.8V Paul Alfille On Tue, Apr 27, 2010 at 3:19 AM, Marc MERLIN <marc_n...@merlins.org> wrote: > I got one of these: > http://www.hobby-boards.com/catalog/product_info.php?cPath=21&products_id=70 > > With the soil sensor in a glass of water (i.e. as wet as it will get), > I get > current: -0.436875 > > http://owfs.org/index.php?page=garden > which should be linked of > http://owfs.org/index.php?page=moisture > if someone can add the link > > Both say the current should be 0.30 dry and 1.29 wet, or something close. > > I'm kind of worried when I get -0.436875 on mine when it's fully wet. > > Also, are any of the many other variables that owfs exposes, like temps, > supposed to be valid/useful? > gargamel:/etc/owfs/bus3/aux/30.131A62120000# grep . type*/temperature > temperature current > typeB/temperature: 7.0278E+32 > typeE/temperature: -1015.99 > typeJ/temperature: -1305.09 > typeK/temperature: -149533 > typeN/temperature: -12683.8 > typeR/temperature:-1.58638E+08 > typeS/temperature:-2.44158E+07 > typeT/temperature: -109837 > temperature: 32 > current: -0.436875 > > I have owfs running with -F, so 32 (freezing in F) can't be a good temp. > > Thanks, > Marc ------------------------------------------------------------------------------ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
