Hi Bill, I've been following the mystery of where the soil and leaf data is coming from. Gary and Tom have given you excellent help in trying to track down the source. I'm hesitant to mention this , because I don't want to confuse the issue, however if you have done some customization in the past it's possible that you have added something to your extensions.py file that's now having undesired effect . Might be worth checking the contents depending on your WeeWX installation type: /home/weewx/bin/user/extensions.py or /usr/share/weewx/user/extensions.py
Thanks, Paul On Friday, October 15, 2021 at 10:34:42 PM UTC-4 bill.g...@gmail.com wrote: > Yes, I think I'd replace the Davis completely, the next thing will go bad > is the super cap in the ISS so another decision time. I already have a > spare Accurite on the shelf. All good points about the SDR implementation. > > I'm not sure about faulty hardware. I don't recall every seeing the values > in the loop packet direct from the driver. Anyway another simple cause > would be not initalizing the values to NULL and then using random values > from memory. > > But still I think the easy fix is simply use the Corrections option and a > note in the Vantage driver for 4.6.X and Seasons skin. I didn't try any > other skins. > > I also think Tom has a Vantage (not sure if it's a Vue) so he might have > seen it already. But certainly as 4.6.X rolls out to weewx Vantage users, > we'll have been there first!. > > > On Friday, October 15, 2021 at 5:01:51 PM UTC-7 gjr80 wrote: > >> On Saturday, 16 October 2021 at 07:07:31 UTC+10 bill.g...@gmail.com >> wrote: >> >>> And another option, replace the ISS. >>> >> Yes, but given that ISS data is clearly getting to the console/logger >> (the loop packets are fine) and since the logger is solely responsible for >> constructing the hardware archive record I would see replacing the ISS as a >> long shot. >> >> >>> But the SDR method might be some interesting fun. >>> >> Remember the two issues with using SDR are (1) as the pressure sensor is >> in the console you will lose all pressure information (and any WeeWX >> derived obs that utilise pressure) unless you provide pressure data >> separately and (2) you lose the ability to catchup if WeeWX is down for any >> period of time. The other complicating factor with using a SDR with a >> Vantage ISS is that you have to contend with with the frequency hopping >> used between ISS and console, still doable but not with the standard WeeWX >> SDR driver. >> >> I'm puzzled why this is happening, would like to trace it down and fix >>> it, but I also don't want to know that much about python or the internals >>> of weewx. I can fiddle with this given some direction though. >>> >>> So, the fix works. I'd be wondering about Tom's thoughts about the final >>> solution. But I think an update to the Vantage driver might be helpful to >>> people as 4.6.0 and the Seasons skins rolls out. A short, here is the >>> weewx.conf update, and how to clear the database and rebuild the daily >>> summaries. Which did require deleting and regenerating the summaries. >>> >> I'm not sure there is a final solution short of replacing the faulty >> hardware. I don't see modification on the vantage driver being required, it >> is doing its job and decoding the data provided by the console/logger. >> There is no way for the driver to distinguish between good data (ie from a >> station that has valid leafTempx data) and bogus data. In the main the >> driver cannot tell what sensors exist/do not exist other than by the data >> included in the packet/record. Arguably you could look at what is (or is >> not in the loop packet) and if something is in the archive record but not >> in the loop packet you discard it but this will only cover a limited suite >> of fields (the loop packets are pretty sparse in some regards) and this >> adds a level of complexity that addresses a very rare corner case that I >> think Tom will say is not warranted. >> >> Gary >> > -- You received this message because you are subscribed to the Google Groups "weewx-development" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-development+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-development/81212f70-2ca3-489a-84f7-885726ce20abn%40googlegroups.com.
