I use ''rtl_433 -F mqtt://localhost:1883' and it publishes directly to the
following topics:
rtl_433/<hostname>/devices[/type][/model][/subtype][/channel][/id]
rtl_433/<hostname>/events
rtl_433/<hostname>/states
I then subscribe to
'rtl_433/<hostname>/devices[/type][/model][/subtype][/channel][/id]' as
'type = individual'.
If you want/need to continue piping to mosquitto_pub, look at
https://github.com/bellrichm/WeeWX-MQTTSubscribe/wiki/Configuring-additional-options#msg_id_field.
Then you can use the 'ignore' option with the appended 'id'.
rich
On Wednesday, 16 November 2022 at 12:48:36 UTC-5 bryan...@gmail.com wrote:
> I'm currently running Weewx 4.9.1 and using WeeWX-MQTTSubscribe to capture
> data from 2 separate RTL SDR's. One of the RTL-SDR devices is listening on
> 433.92 and is picking up weather data from a couple nearby weather
> stations. One of the weather stations I'm listening to has a bad wind
> sensor, so I do not want the wind data from that station, the other station
> has good wind data so I do want that data. These two stations are from the
> same manufacturer and fall under the same device decoding protocol ( [40]
> Acurite 592TXR Temp/Humidity, 5n1 Weather Station, 6045 Lightning, 899
> Rain, 3N1, Atlas).
>
> The other RTL-SDR is listening on 915.00 in order to pick up pressure data
> from another sensor.
>
> When using
> `rtl_433 -F json -M utc -R 40 | mosquitto_pub -t weather/radio -h
> localhost -l`
>
> I receive all packets from both stations and pass that to the
> WeeWX-MQTTSubscribe driver where I have set up the various fields and map
> them to weewx. For example, the wind data:
>
> [[topics]]
> unit_system = US
> [[[weather/radio]]]
>
> ... snip ...
> [[[[*wind_avg_km_h*]]]]
> name = windSpeed
>
> [[[[*wind_dir_deg*]]]]
> name = windDir
>
> ... snip ...
>
> since both stations emit, for example, 'wind_avg_km_h', I don't have a way
> to filter out one of them (the bad one) so I end up getting some garbage
> data in the mix with good data.
>
> My question is this: since these two stations are the same 'device
> decoding protocol' (40) is there a way to differentiate between the json
> data coming from the one vs the other? The both have different [[[[id]]]]
> fields, the one I want has an ID of 3522 and the one I don't want wind data
> from is ID 2849.
>
> Essentially I want to keep data from both devices but exclude just the
> wind data from one of them.
>
> Thanks much for any help you all can provide.
>
> Bryan
>
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