If Vince's suggestion does not help, try adding the following to your
weewx.conf:
[Accumulator]
[[co2]]
accumulator = firstlast
extractor = last
On Friday, December 3, 2021 at 6:24:46 PM UTC-5 vince wrote:
> See if $last rather than $current helps (untested)
>
> On Friday, December 3, 2021 at 2:53:22 PM UTC-8 [email protected] wrote:
>
>> Hello,
>> With lots of good help from the group, I have my Seeed CO2 monitor (LoRa)
>> sending data to my weewx.sdb archive. I have weewx 4.5.1 (setup.py) on
>> Focus Ubuntu.
>>
>> The sensor sends data only every 60 minutes and my archive update is
>> every15 minutes.
>> Looking at weewx.sdb, I have a reading recorded every hour but a null
>> every 15 minutes when there is no new data.
>>
>> co2 column
>> 417.0
>> null
>> null
>> null
>> 390.0
>> null
>> null
>> null
>> 394.0
>>
>> My settings in (Standard) index.html.tmpl are:
>> Current Conditions
>> <td class="stats_label">CO2 level</td>
>> <td class="stats_data">$current.co2</td>
>> Sometimes I get a data reading and others just "N/A"
>>
>> My settings in weewx.conf:
>> [MQTTSubscribeService]
>> # Turn the service on and off.
>> enable = true
>> binding = loop
>> [[[mytopic]]]
>> ignore = true
>> [[[[CO2_Value_PPM]]]]
>> name = co2
>> ignore = false
>> contains total = false
>> conversion type = float
>>
>> Since everything seems to be working, the "$current.co2" may not be the
>> correct form to use here as the display needs to retain the last value
>> until it's replaced with a new reading coming every 60 minutes from the
>> sensor.
>>
>> Much appreciated if someone could point out my mistake in configuration
>> here.
>> The display can be seen at: http://grattans.org/wx
>>
>> Cheers,
>> Bob
>>
>
--
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/b666e3b0-3c9a-4cd8-9a98-79ce970cbf1en%40googlegroups.com.
