From MQTT to WeeWX

[Tarmo]

We have a temporary situation here where the Vantage station is not available. Meanwhile, I have access to the MQTT broker with all the measurements from another station.

I would like to keep the Vantage driver running for inside temperature and humidity and add a service augmenting station data with outside measurements from MQTT.

Which service do you recommend for this task? I have briefly looked at Rich's WeeWX-MQTTSubscribe which looks complicated for a simple query to fetch outTemp and outHumidity from MQTT and add these to the archive.

Thank you in advance!

[bell...@gmail.com]

Yeah, it has become a bit complicated.  If you post your topic and an example payload we should be able to get you up and running pretty quickly.

rich

[Tarmo]

The topics are

rtl_433/lab/devices/Solight-TE44/1/4/temperature_C

rtl_433/lab/devices/LaCrosse-WS2310/242/humidity

How do I get example payload? I am running Mosquitto.

[Tarmo]

Update on example payload:

{"time":"2021-01-20 13:28:57","model":"Solight-TE44","id":4,"channel":1,"temperature_C":-7.1,"mic":"CRC"}

{"time":"2021-01-20 13:29:20","model":"LaCrosse-WS2310","id":242,"humidity":78}

[bell...@gmail.com]

After installation, you will need to update the MQTTSubscribeService to look something like this.

[MQTTSubscribeService]

    host = replace with your broker

    # any other MQTT options you need, like port, user, password, etc.

    [[message_callback]]

         type = individual

    [[topics]]

        unit_system = METRIC

        use_topic_as_fieldname = true

        [[[rtl_433/lab/devices/Solight-TE44/1/4/temperature_C]]]

            name = outTemp

        [[[rtl_433/lab/devices/LaCrosse-WS2310/242/humidity]]]

            name = outHumidity

[Tarmo]

That was easy. Thank you very much, Rich.