This is an embarressingly simple question, but I thought I'd ask rather than remain in the dark...
I'd like to connect a basic flick-switch to an arduino, using the internal pullup to prevent floating. It's to act as a mode switch for a lamp, so will be in either state for long periods, hence the question:
Is there any problem leaving a pulled-up pin with a high input for long periods? Overheating? Weird electronic-y things of which I'm unaware?
Or am I just pondering needlessly and it's totally fine and a standard thing to do?