I was wondering what the etiquette is regarding asking questions regarding electronics that does not relate to an Arduino? I have a project for university that I am in the process of researching and so far the research is going well, but I am struggling to find some specific info regarding how current is drawn from USB charging devices. I'm going to spend the day tomorrow trying to find as much info as possible, but if I needed a pointer from someone with greater expertise, is it the done thing to ask here?
Cheers 