Hi all, I’m looking to monitor my vaillant. I purchased the ebus but now realise I need more to do so. I don’t have home assistant, or a pi or anything.
What’s going to be the easiest (cost effective) way to get the data from the ebus stick to something useable? I’m not really interested in a home server or home assistant for anything else.
The easiest and most cost effective is possibly an older Raspberry Pi, and running the software to upload the data straight to emoncms.org
Second that, though if cost is a tight constraint there’s no need to upload to emoncms.org, you can save the extra yearly costs to mirror the feeds to the online emoncms and keep a fully local version running.
Thanks both.
Hi,
Coming back on this one.
As I’m not expert in the matter and if I understand well, how do we run this service once to extract “our” personnel csv ?
Hi,
I purchased the ebusd adapter and already integrated it into Home Assistant.
But I have a question regarding the connection to the Vaillant Bus.
I have the Vaillant hydraulic station and the Network interface VR921 already connected to it.
Can I now just unplug this marked cable and split it to both the existing Vaillant Network interface and the new ebusd adapter? (= connect them both devices in parallel) and then it should work?
Thanks!
Yes exactly, that’s also how I did it
Thank you very much! 
I live in the country and we get short power dropouts monthly and a 9 hour power cut on one occasion without any loss of sync. If the system has a network connection then it has plenty of opportunity to resync its clock either from NTP or the Vaillant server so if that is the case and it isn’t happening then I’d class that as a bug that Vaillant should fix. It is also something that the app should check the moment you ask it something. As well as non-optimal heating times there will be cost implications for customers on a variable tariff. If it doesn’t have an Internet connection then it is a bit remiss that it can’t do what every PC in the world manages to do just fine and run the clock locally till the power comes back!
