I'd start by ignoring the graphs (for now) and looking at what your database has in it. Is the value in the database spiking ?
On Wednesday, October 27, 2021 at 11:36:19 AM UTC-7 [email protected] wrote: > my station can be found at https://stonecressweather.ddns.net . > > I have two sensors for temperature and pressure which both publish to > weewx using the mqtt subscribe driver. The program I have running on the > sensors takes a reading of pressure and temperature every 10 seconds, keeps > a running average of pressure in avgPressure variable, and publishes on > mqtt topic every five minutes. My station archive records update every five > minutes. Theoretically, both my "Barometer" and "Pressure" values on weewx > should be the five minute avgPressure at each unit. If you look at my > graphs, however, I am experiencing spikes on both sensors at random points. > Having studied serial output from my sensor units, they do not seem to be > putting out the spiked reading. Also, according to my program on the > sensors, they CAN'T output a significant spike. > > I'm not quite sure where to begin looking at weewx to find where the > spikes are being introduced to the record and therefore appearing in the > graphs. If someone could point me in the general direction, it would be > much appreciated. As far as log files, please indicate how long of a time > period I should include and I will post them asap. > > Thanks > Nick Kavanagh > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/535dec33-b3fe-49f7-a7b0-fccb20846715n%40googlegroups.com.
