Andrew
I have now changed the time in weewx.conf to 1800 sec=30 minutes and WMR300
to 15 minutes (WMR300 can only select storage frequency to 1 minute, 5
minutes, 15 minutes and 60 minutes). We wait for results in an hour and
then see.
Thank you so much / Yngve
Den lördag 20 januari 2018 kl. 12:37:27 UTC+2 skrev Andrew Milner:
>
> The .conf you posted had the interval set to 900 = 15 minutes, not 5, but
> the station only outputs the pressure every 15 minutes - so perhaps your
> archive interval needs to be 20-30 minutes in order to contain at least one
> pressure reading
>
> Does the weather station have its interval set to the same value??
>
> I see that the station only supplies barometer in loop and rec packets,
> and pressure in loop data and for rec packets weewx has to calculate
> altimeter and pressure
>
> If you have a long archive interval (eg 30 minutes rather than the 5 i
> suggested originally), and the station set to the same value, does it help??
>
> On Saturday, 20 January 2018 11:37:52 UTC+2, Yngve Andersson wrote:
>
>> Andrew
>>
>> Ok! has now changed the WMR300 logging interval to 5 minutes. I have
>> waited a period of 900 seconds for the first REC, giving unchanged results.
>> Attaches weewx.conf as it is running now!
>>
>> Best regards / Yngve
>>
>> Den lördag 20 januari 2018 kl. 10:52:28 UTC+2 skrev Andrew Milner:
>>>
>>> Can you post your weewx.conf - with sensitive passwords removed of
>>> course.
>>>
>>> Weewx can be set to either generate archive records from hardware or
>>> generate them by software. If the hardware rec always has the right data
>>> then ensure that in weewx.conf - stdArchive section - you have got record
>>> generation set to hardware
>>>
>>> 60 second archive interval is very small - usually one uses 5 minutes
>>> (300 secs) - and may lead to other issues in generating reports etc which
>>> is done at the archive interval - so at 60 seconds the reports may start to
>>> backlog a little
>>>
>>>
>>>
>>> On Saturday, 20 January 2018 10:41:05 UTC+2, Yngve Andersson wrote:
>>>
>>>>
>>>> Notes on ...
>>>>
>>>> After the Weewx program has stopped (for some reason?) And been turned
>>>> off for a few hours, I now restart with the command "*sudo weewxd
>>>> weewx.conf*".
>>>>
>>>> There is now a list of "REC" with historically stored values from the
>>>> time weewx stopped. Measurement values displayed here with a range of 60
>>>> seconds and up to the current time look correct (see attached print).
>>>> (WMR300 is initially set to log 1 time/60seconds... if now this may be
>>>> important?). These historical "REC" are now scrolling to return to normal
>>>> running ("LOOP" and "REC, every 900 seconds") and now again with
>>>> "altimeter: None and barometer: None" display.
>>>>
>>>>
>>>> It's tricky to describe the procedure, but I hope it's understandable.
>>>>
>>>>
>>>> A thought and wonder from a novice ... if the 60 seconds measured values
>>>> in the WMR300 are correct why not read and present the nearest
>>>> historically stored value?
>>>>
>>>> Sincerely Yngve
>>>>
>>>> Den lördag 20 januari 2018 kl. 02:12:02 UTC+2 skrev Yngve Andersson:
>>>>>
>>>>> The time between two "REC" 01:45:00 - 02:00:00 is exactly 900 seconds.
>>>>> The reading was done manually from the terminal. Also noted that reading
>>>>> values showed "altimeter: None, appTemp: 19.6444928978, barometer: None"
>>>>>
>>>>> Den fredag 19 januari 2018 kl. 22:01:42 UTC+2 skrev Yngve Andersson:
>>>>>>
>>>>>> Thank you, *mwall *for your quick response and dedication!
>>>>>>
>>>>>>
>>>>>> The time is set to 900 seconds, also tested 1200 seconds with the
>>>>>> same result.
>>>>>>
>>>>>> I'm not familiar with the "sqlite3" program, so it needed an
>>>>>> installation. Then I come so far.
>>>>>>
>>>>>>
>>>>>> p...@raspberrypi:~$ sqlite3 /var/lib/weewx.sdb
>>>>>>
>>>>>> SQLite version 3.16.2 2017-01-06 16:32:41
>>>>>>
>>>>>> Enter ”.help” for usage hints.
>>>>>>
>>>>>> Sqlite> select dateTime,pressure,barometer,altimeter from archive
>>>>>>
>>>>>> - - >
>>>>>>
>>>>>>
>>>>>>
>>>>>> Den fredag 19 januari 2018 kl. 20:42:39 UTC+2 skrev mwall:
>>>>>>>
>>>>>>> yngve,
>>>>>>>
>>>>>>> thank you for a detailed problem description!
>>>>>>>
>>>>>>> wu can be very unreliable about displaying data, so we should first
>>>>>>> ensure that weewx is getting correct data from the hardware.
>>>>>>>
>>>>>>> as you know, the wmr300 emits a pressure reading only every 900
>>>>>>> seconds. so if you have an archive interval of 300 seconds, only every
>>>>>>> 3rd
>>>>>>> archive record will have a value for pressure.
>>>>>>>
>>>>>>> however, your archive interval of 900 seconds should address this.
>>>>>>>
>>>>>>> how often do you have records (REC not LOOP) with no
>>>>>>> pressure/altimeter/barometer?
>>>>>>>
>>>>>>> you can find out easily by doing a query on the weewx database:
>>>>>>>
>>>>>>> sqlite3 /var/lib/weewx.sdb
>>>>>>> select dateTime,pressure,barometer,altimeter from archive
>>>>>>>
>>>>>>> m
>>>>>>>
>>>>>>>
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