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Type: Posts; User: OpenMike

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    Hi, don't worry about numpty questions, I have a...

    Hi, don't worry about numpty questions, I have a similar background to you and a similar learning curve!

    First off, the easiest solution to meet your requirement would be to buy the Vaillant...
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    Happy New Year everyone. My little boiler...

    Happy New Year everyone.

    My little boiler logging project has been quite successful. The water temperature readings aren't particularly accurate but it's the boiler on/off cycles I'm interested...
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    True, but I already have the boards. Anyway,...

    True, but I already have the boards.

    Anyway, thanks for all the advice and have a happy Xmas!

    Mike
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    Yes I found that circuit during my searches....

    Yes I found that circuit during my searches. Thanks for confirming that it works. I will certainly try it if my "external" measurement system fails to satisfy my requirement.

    I have my FTDI module...
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    OK thanks. I'm going to start simple with an...

    OK thanks. I'm going to start simple with an Arduino and a couple of temperature sensors on the boiler pipes. There is an Excel plugin called PLX DAQ which writes the live data to a spreadsheet.
    ...
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    Hi Michael That sounds like a good idea, I'll...

    Hi Michael

    That sounds like a good idea, I'll look in to it. My Pi's are busy hosting a web site, backing up files and serving media so I'd need to buy another one ;)

    A friend of mine does...
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    OK, well I already have a couple of Pi's running...

    OK, well I already have a couple of Pi's running applications here so I think I can handle that. I was leaning towards buying the commercial adapter I linked to above, but I see they are now out of...
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    Thanks for the advice. This is exactly what I...

    Thanks for the advice. This is exactly what I want to do. Are you using a Raspberry Pi with your adapter?

    Also, what connector is needed for eBus on the boiler?

    Mike
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    After some further research it appears that...

    After some further research it appears that Vaillant used to offer their own solution:

    https://www.mytub.co.uk/vaillant-vrdialog-810-2-diagnostic-software-product-107928

    The hardware is no...
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    Thank you, that's very helpful. There are some...

    Thank you, that's very helpful.

    There are some very clever people out there :)

    My boiler is 9 years old so no worries about the warranty ...
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    How to read the Vaillant eBus

    I have a Vaillant EcoTec Plus boiler. I don't want to control it but I'd like to be able to read the values of flow and return temperature so I can plot them on a graph.

    I've searched the internet...
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