Countdown timer led bar... Possible or not ?
So it's my first post here :-) Hope tu fins answers !
I would like to create a visual countdown, created by a led bar (let's say 100 leds aligned) that would switch off regulary the leds when the time is going on...
My idea is to propose a visual bechmark to people that do not know to read the time (childrens, deficient persons etc...). For example, it's always quite hard to make the childrens know how long they have to stey on bed until the night is finished. This kind of countdown could be understandable by everyone to know if the night is in the middle or next to finish.
Ideally, this coutdown could be associated to one clock and could take the "start time" and the "end time" and calculate the time beetween that, then switch off regulary each one of the lights, going from 100 lights on starting time to 0 at end time.
Any idea about this ?