On Tuesday, February 14, 2017 at 1:01:41 PM UTC-5, Thom Rogers wrote: > > I've gotten weewx up and runnig with my Excelvan (FineOffset) WH2310, but > the data is wlidly different from the data showing on the base unit and > produced by WeatherSmart. I was running WeatherSmart in parallel with > WeeWX for this data collection. >
how are you able to get both weewx and weathersmart to communicate with the weather station at the same time? I'm mostly interested in wind, but the temperatures and humidity figures > don't match up either. I have enterd offsets to windDir, windGust, and > windSpeed in the calibration section of weewx.conf but this looks like > non-linear variances to me. > > Can anyone suggest what I need to do to make these values sync? Also, > which is correct? > the first step would be to stop calibrating. remove everything from StdCalibrate, and remove any calibrations from within weathersmart. then start capturing data for comparison. > > - I notice that WeatherSmart consistently (about 95%) reports the wind > direction as a number divisible by 45, while WeeeWX reports specific > headings. Any idea why? > > according to this page: http://www.weewx.com/hwcmp.html the wind direction sensor has a resolution of 22.5 degrees. if you are looking at weewx loop data, then you will see only multiples of that resolution. if you are looking at weewx archive data, you will seen an aggregation of the loop data, so the archive data will almost certainly not be multiples of that resolution. > > - > - I also notice that the values for all of the WeeWX measurements > maintains a trend over time (windDir decreases as time increases, Gust > increases even tho it should have reversed at the 11:06 and 12:03 > measurements) > - windSpeed for WeeWx doesn't track with changes in WeatherSmart. > > Any suggestions or explanatins would be welcome. > start by comparing apples to apples: - loop data from weewx should match the numbers you see on the console - archive data from weewx should be close to the numbers you get from the console logger via weathersmart, assuming that the weewx archive interval is the same as the hardware archive interval and be sure you have the units right m -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
