Is more than one station_type possible in a single instance of WeeWX?

[Robert Anthony Pitera]

Pardon what may be an obvious question, but I could only find one relevant post and it was from a few years ago.

I have WeeWX up and running with my Acurite 5in1 but I also have a Bloomsky Sky1.  I discovered there was a driver for the Bloomsky and was wondering if there was a way to add it into my existing WeeWX instance.  I saw that in 2017 someone asked and it wasn't possible to use two drivers simultaneously but I was wondering if that limitation still existed?  If so, has anyone found a work around for this like running two instances of WeeWX and somehow combing the info in the skins?

Thanks!

[Thomas Keffer]

You cannot have two drivers, but you can add a service that adds data from the second data source. 

One approach is to create a service that runs a second thread, which communicates with the second source.

Another approach is to emit data to a file, which the FilePile service can then read.

For a general discussion, see the Wiki article Intake strategies.

-tk

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[Robert Anthony Pitera]

Wow, didn't expect an answer that quickly; nice to know this is such an active community!

Thanks very much for your guidance; I'll read into the links asap.  Much appreciated!

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[tomn...@frontier.com]

For a while, I was running two instances of weewx on a machine with the same installation, but

separate trees for the db_archive, output web files, skins, and separate config files.  I didn't have any

problem with it, just changed hardware and needed to move the one close to the console (VP2 in the kitchen),

which is now on an RPi model B+.  Actually, I might have had all 3 instances in that one install.

Chris

[mwall]

On Monday, February 4, 2019 at 12:25:22 PM UTC-5, Robert Anthony Pitera wrote:

I have WeeWX up and running with my Acurite 5in1 but I also have a Bloomsky Sky1.  I discovered there was a driver for the Bloomsky and was wondering if there was a way to add it into my existing WeeWX instance.  I saw that in 2017 someone asked and it wasn't possible to use two drivers simultaneously but I was wondering if that limitation still existed?  If so, has anyone found a work around for this like running two instances of WeeWX and somehow combing the info in the skins?

it is easy to run multiple instances, but as tom notes, only one driver per instance.

using a service to augment data works well in some cases, such as adding data from some one-wire sensors to the database that has data from your weather station.

but for multiple weather stations, or for power monitoring, tide monitoring, water consumption, fuel consumption, air quality, or other types of data collection, it is often better to run multiple instances of weewx.

https://github.com/weewx/weewx/wiki/weewx-multi

you can always combine data into a single report with a separate, dedicated skin and wee_reports.  or you can aggregate by feeding into influx or emoncms or something that feeds off of mqtt.

this is how i typically configure a system that will have multiple instances of weewx on it:

/opt/weewx-x.y.z   - weewx is installed here

/opt/weewx-skins   - skins go here

/etc/weewx/        - configurations go here, one per instance

/var/lib/weewx/    - database files go here, one per instance

/etc/init.d/weewx-multi  - script that starts/stops them

/etc/default/weewx-multi - list of which instances should run

that way i can test new releases of weewx without disturbing what is already running.  i can test/update one instance without disturbing the others.  i can update/test skins without disturbing whatever is already running.  i can update skins independently of weewx itself.

on most systems i run only two or three weewx instances, but i have a couple of systems with 6 or 8 instances.

m

[Robert Anthony Pitera]

Thanks all for the info!  I have a few more things I need to feel more comfortable with in basic configuration, but I'll look at all of the links and info provided.  Struggled with getting cmon in my exfoliation skin for days only to find out that the instructions say to use cmon_binding when it was actually wx_binding, at least in my case.  So I need to keep working the learning curve, but the input helps.

Thanks very much!

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