i wonder if someone could help with some ideas about the follwoing:
Ive got MPPT Solar Charge Controller with rj45 port in it that suppose to transfer battery data.
I wonder how can i connect that rj45 rwead the data (particularly voltage and battery charge level) and transfer it to home assistant?
I was wondering if esp8266 or something similar can be used? Can i read and decode the rj45 signal and then send it to home assistant via mqtt?
If so and you ever came across a similar project or have some advice or ideas please could you share?
Just need some direction and ideas where to start from…
The mptt controller i have is:
Y&H 30A MPPT Solar Charge Controller with LCD Display Tracer AN Series 12V