Wow! How did you learn all this? Thanks very much. Peter On Sat, Oct 29, 2011 at 9:11 AM, Silvano Gai <[email protected]> wrote:
> > Barometer > ====== > Barometers reports sea level pressure and not the atmospheric pressure at > the place they are installed. Therefore they need to be compensated for the > altitude of the installation site. Hobby Boards has an online calculator to > calibrate the barometers > http://www.hobby-boards.com/catalog/baro_calc.php > > after calibration check with NOA > http://www.wrh.noaa.gov/zoa/mwmap3.php?map=usa > > > Hobby Board Solar/Humidity/Temperature > ========================== > Check the diagram at: > > http://www.hobby-boards.com/catalog/links/hts3-r1/Humidity-Temp-Solar%20v3.2%20Schematic.pdf > > There are two 1-Wire devices on the board and they have different > addresses: > - the DS18S20 - 1-Wire Parasite-Power Digital Thermometer > - the DS2438 Smart Battery Monitor > > The DS18S20 is the thermometer and therefore you should read the > temperature at this device that typically has an address that starts with 10 > (mine is 10.07303C020800). Do NOT read the temperature at the other address. > > The DS2438 reads the Humidity on the VAD side and the Sunlight on the VSENS > side. This device typically has an address that starts with 26 (mine is > 26.47AD21010000). > > In owfs just go at the address that start with 10 and read the temperature, > then go at the address that starts with 26 and read the Humidity at > "Humidity" and the sunlight at "vis". > See: > http://owfs.org/index.php?page=ds2438 > > Vis is a real value (the voltage accross R2 - my sensor right now is > reading 0.00170870) so typically you should multiply it by something like > 10,000 before showing it. Then note the reading when you have full sun and > adjust the multiplication factor so that the result is 100 % sunlight. > > > I hope it helps > > -- Silvano > > > > > > > On 10/28/11 7:06 PM, Peter Hollenbeck wrote: > > Thanks to Silvano Gai's document I have a faintly better understandig of > the owfs suite. > > I have three Hobby Board units. > 6CMH1-R3-A 6 Channel Serial Hub > B1-R1-A Barometer Connected by Cat5 to hub Channel 2 Main > S3-R1-A Solar/Humidity/Temperature Connected by Cat5 to hub Channel 3 > Main > > I run the following: > /opt/owfs/bin/owserver -d /dev/ttyS0 > /opt/owfs/bin/owhttpd -s localhost:4304 -p 8888 > > localhost:8888 shows the OneWire devices, and these values: > Temperature: 30C. The actual temperature is about 17. > Humidity: 146.636. Not right I guess. > Illuminance: 65.8839. This never changes. I don't know the units. > Barometer: 1018.83. Somewhat high but probably not calibrated. > > I have two questions: > Are sensor values updated automatically? > What do you make of the values for temperature, humidity, and illuminance? > > I would appreciate comments. > Peter > > > > > ------------------------------------------------------------------------------ > Get your Android app more play: Bring it to the BlackBerry PlayBook > in minutes. BlackBerry App World™ now supports Android™ Apps > for the BlackBerry® PlayBook™. Discover just how easy and simple > it is! http://p.sf.net/sfu/android-dev2dev > > > > _______________________________________________ > Owfs-developers mailing > [email protected]https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > > ------------------------------------------------------------------------------ > Get your Android app more play: Bring it to the BlackBerry PlayBook > in minutes. BlackBerry App World™ now supports Android™ Apps > for the BlackBerry® PlayBook™. Discover just how easy and simple > it is! http://p.sf.net/sfu/android-dev2dev > > _______________________________________________ > Owfs-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/owfs-developers > >
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