Avoiding external Growatt Cloud Server

[syngron]

Hi there,
Thanks for this awesome tool!

I was wondering if something like Grottserver can be used with the Noah battery.

At Grott there is already an open issue but the protocol needs to be deciphered with a MITM because a TLS connection is used.

I guess because noah-mqtt just uses the web API, we still have no way around that. But possibly there is somebody here who can decrypt the handshake between the battery and the Growatt server?

It would just be awesome to not rely on the cloud anymore to control our batteries!

johanmeijer/grott#560
https://github.com/johanmeijer/grott/wiki/Grottserver