I have to display some information about a battery system on a very limited display. It only has a four characters dot lcd display space, so the most common thing I saw for this was alternating the information. The information needed to be displayed is voltage, load state and for some cases temperature. So I to display for example:
(yeah, no V for voltage available) and for another case of a similar device, it would additionally display
So I was experimenting with different display durations. I first tried 500ms which for me works fine, but looks a bit hectic. Also this has to be usable in not-so-optimal light conditions and I am afraid that people will have problems reading it there. I started not looking "hectic" to me at ~1500ms but then I have the feeling that I need to wait for being able to read the information, and quickly accessing the information is important too.
So I am not only looking for the answer of "hey, use 666ms, its cool" but also for a good explanation at how to arrive at the number to be able to reason about it for the next time ( where I might need 4 or 10 informations )