Hmm, that (mapping to outHumidity) probably won’t work if the frequency of the MQTT data is less than the loop data… Drat On Monday 6 May 2024 at 19:25:05 UTC-4 bell...@gmail.com wrote:
> In theory you should just need to map the MQTT data to outHumidity and > MQTTSubscribeService will overwrite the loop/record data. > If you want it in both fields, try something like Tom suggested. > rich > > On Monday 6 May 2024 at 04:21:52 UTC-4 Lieven Hollevoet wrote: > >> Hello fellow weewx-users, >> >> I am happily running weewx in combination with a Davis Vantage Vue >> station since 2018. >> >> Recently, the humidity sensor of my station has developed a problem in >> which it sometimes report 'sane' values and sometimes it reports a 0 or 1% >> relative humidity. This of course results in very wonky dewpoint >> calculations and so I set out to fix it. >> Replacement sensors are no longer available, soldering a new sensor in >> the station is not an option. >> >> I don't want to replace the complete sensor suite in the outdoor unit as >> all other sensors are still working fine. I opted to setup a new relative >> humidity sensor. I attached a Bosch BME280 sensor to the Luftdaten air >> quality sensor that I have running near the weather station to measure >> valid relative humidity values. >> >> I am pulling the BME280 relative humidity sensor values via Home >> Assistant from the Luftdaten sensor and I am posting it to an MQTT broker. >> WeeWX reads the relative humidity sensor values from the BME280 using the >> MQTTSubscribeService. The new relative humidity sensor value are reported >> in the extraHumid1 sensor in WeeWX. >> >> This is all working as expected. >> >> The question I have: is there a way to override the standard >> 'outHumidity' readings that come from the LOOP packets that are read from >> the Vantage station with the valid readings from the extraHumid1 sensor? >> >> I tried using the [StdCalibrate] > [[Corrections]] setting in the >> configuration but the problem is that the LOOP packets from the Vantage >> station with the invalid relative humidity readings are much more >> frequently received than the updates from the MQTT service that only >> updates the sensor value every 2 minutes. So the override with the >> corrections only happens when a new MQTT message is received, all the other >> intermediate loop pakets still contain the invalid relative humidity >> readings from the Vantage driver (the 'outHumidity' sensor). >> >> I searched the documentation but I did not find a way to implement what I >> try to do. Does somebody have a pointer that I can follow to solve this >> issue? >> >> For your reference: my weather data with the invalid and the valid >> relative humidity sensor can be found on http://weer.lika.be >> >> Thanks in advance, >> Lieven. >> > -- 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/4827584b-b0ab-4eb6-b0cd-8abe662af286n%40googlegroups.com.
