My initial question was to try and isolate the readings (to see where the problem is)... Does the Meteostick have a way to see its values without weewx? (web ui? serial port?) Trying to see if the stick is the problem or if it's weewx.
The driver looks like it expects "pressure" from the Meteostick, and submits that to the loop <https://github.com/matthewwall/weewx-meteostick/blob/master/bin/user/meteostick.py#L643>. As I understand it StdWxCalculate <https://github.com/weewx/weewx/blob/master/bin/weewx/wxservices.py#L19>will calculate the barometer <https://github.com/weewx/weewx/blob/master/bin/weewx/wxservices.py#L237-L240> based on the pressure value in the LOOP. On Thursday, August 8, 2019 at 3:38:53 PM UTC-4, Brezentrager wrote: > > Yes, the pressure values come from the Meteostick. I'm less concerned > about the actual level of the barometer values - that's something I can > calibrate. > I'm more concerned about the ups and downs that heavily correlate with my > temperature and humidity values. > > Am Donnerstag, 8. August 2019 21:35:27 UTC+2 schrieb Pat: >> >> Actually this is probably a bad comparison since I think the Meteostick >> comes with it's own barometer on the stick itself - so the values won't be >> identical. >> >> >> On Thursday, August 8, 2019 at 3:25:37 PM UTC-4, Brezentrager wrote: >>> >>> The values on the console are generally lower. Currently - Console: >>> 1015.1 // WeeWX: 1017.9 >>> The difference gets bigger in the morning and smaller in the >>> afternoon/evening. >>> >>> >>> Am Donnerstag, 8. August 2019 21:19:42 UTC+2 schrieb Pat: >>>> >>>> Just curious how these values compare against your station's console? >>>> >>>> >>>> On Thursday, August 8, 2019 at 2:46:23 PM UTC-4, Brezentrager wrote: >>>>> >>>>> Hi, >>>>> AWEKAS doesn't accept my barometer figures since they differ too much >>>>> from comparable stations in the region. >>>>> >>>>> When looking at the issue in more detail I found a suspicious pattern >>>>> for my barometer data - see screenshot of last week's pressure. >>>>> >>>>> [image: Bildschirmfoto 2019-08-08 um 20.04.33.png] >>>>> There's quite a big variation between the barometer figures in the >>>>> morning (high) and in the afternoon (low). The variation is as big as 5 >>>>> mbar - every day. >>>>> When comparing this to a station in the neighborhood, those variations >>>>> are absolutely unusual. >>>>> >>>>> When comparing the values to stations in the region, the lower >>>>> afternoon values seem to be more comparable (=correct). >>>>> >>>>> I know that the barometer values have some temperature correction >>>>> applied to it. But why is the effect so huge? >>>>> The pressure and altimeter values look much more reasonable. >>>>> >>>>> Did I set up my system in the wrong way? >>>>> >>>>> As background: >>>>> The Meteostick is connected to a RPi (running the latest version of >>>>> weewx and Matthew Wall's meteostimk driver). >>>>> >>>>> Hints and tips appreciated! >>>>> >>>>> Best, >>>>> Manfred >>>>> >>>> -- 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 weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/9e73b77f-287b-4433-9712-a0ad13645594%40googlegroups.com.
