Thanks @stosoorok for your response.
I have heard that you can control it with that controller and also using the mobile app. Can’t you do that?.
Anyway, your option about the relay and the Wemos looks cool. Could you share it?.
About the solar panels and the controller, I guess that what it does…just check the electricity generated with the inverter (solar panels) and try to use it. I mean, more or less it would be the same with a Shelly EM, doesn’t it?
Thanks in advance.