Connecting two or more instances via MQTT

[stanpete78]

Is there a chance to make two OpenDTUs talk to each other?
In my case, I need to have two separate instances in two different locations. They both just see themselves and so they just do whatever they feel like.

As you see, one is getting more power from PV than needed, but the second one uses its battery, which is pretty wasteful.

Maybe it's "just" a matter of adding a new MQTT value to read the output of other OpenDTU instances or inverters and let them make a smarter decision how to handle their output.

br!
st

[stanpete78]

Ok, I think I found a solution. I just added the output value of one of the Hoymiles inverters as power meter in the second one.