Online I’ve seen plenty of people connect to their solar controllers and read the data. I thought what a great idea, as I have 3 of them in my shed.
Yes. I’ve been here before, and I’m delighted to say I actually managed to complete a few projects. But, after spending the last few years on site out in the elements. The wind, sun and rain has washed out all traces of my ability to code, not that I had much in the first place.
So, here is my attempt at reading the data from my solar controllers and displaying it on my phone using Blynk…
I saw this:
The guy connects his Pi directly to the controllers RS-485 port utilising TX and RX.
First question, is this possible with a Wemos D1 Mini? Can it be directly connected to the controllers RS-485 port utilising TX and RX?