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Thread: eBus monitoring

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  1. #1
    Automated Home Ninja
    Join Date
    Aug 2016
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    489

    Default eBus monitoring

    I leave this image here with no further comment...

    Boiler Dashboard 2.jpg

  2. #2
    Automated Home Ninja
    Join Date
    Aug 2016
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    489

    Default

    OK, a bit of comment, for those who are interested...

    This is a dashboard monitoring the eBus comms on my Vaillant EcoFit Pure 625 system boiler.

    The moving parts are...

    * Physical eBus connection to this eBus level converter/opto-isolator: https://wiki.fhem.de/wiki/EBUS
    * Connection from that (via an FTDI RS232 to USB converter) to a Raspberry Pi 3
    * RPi running ebusd: https://github.com/john30/ebusd
    * My own custom script (based heavily on a concept from bruce_miranda, thanks Bruce) to poll data from ebusd and push it into Domoticz
    * Domoticz data-push to push data into InfluxDB (a time-series database)
    * The final dashboard is built in Grafana, reading data from InfluxDB

    Oh, and if you're interested, the boiler is controlled by EvoHome via OpenTherm and a Vaillant VR33 OpenTherm to eBus converter.

    Sooooo many converters.

  3. #3
    Automated Home Legend
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    Jul 2014
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    1,086

    Default

    Looks great. Why not amend your script to publish to Domoticz and InfluxDB simultaneously. Avoids needing to use the Domoticz datapush. I do that. It allows data to be captured even while Domoticz may be down for some reason.

  4. #4
    Automated Home Ninja
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    Aug 2016
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    Default

    I have considered it, and I think that will be my next step. The Domoticz data-push stuff is not very flexible. In particular, you can't control the names of the measurements, and you can only push a single value per measurement. It would be nice to have, for example, both the flow and return temperatures as attributes of the same measurement which would make calculating delta-t easier (or, indeed, possible!)

  5. #5
    Automated Home Jr Member
    Join Date
    May 2017
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    15

    Default

    I'm looking at doing something similar with my EcoTech plus 832. Could you share more details on setting this up with a "beginner level" bias please

    My main objective to start with is just having a log of the boiler firing on and off, but long term a dashboard like posted above would be great!

    Thanks

  6. #6
    Automated Home Legend
    Join Date
    Jul 2014
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    1,086

    Default

    Start here first and work out what hardware you plan to use. https://github.com/john30/ebusd/wiki/6.-Hardware

    The rest is just 0s and 1s.

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