My solar shed now generates more power than I can regularly use. I wanted a way to use that excess energy, but ensure my battery was kept fully charged.
I’ve recently bought a couple of Arduinos to have a play with. They fit this purpose perfectly. They can run from the battery, but use very little power. Using a voltage sensor (which is a simple, pre-built voltage divider) and a relay board, I can easily change the relay based on the voltage input.
This is my first project, so please be kind on the code. I’m still learning!