I'm leaning the science behind home electricity. I want to install an outlet in my bathroom for a bidet but I realized I didn't understand when and where I needed a GFI outlet. So I'm learning via a handful of books
Similarly, I want to add another outlet in the basement for my cats' automatic litter box.
I also just replaced my Nest doorbell with a "dumb" doorbell but the chime won't work. So I need to do some research on how the chimes work...