Heys guys, i'm new here so i'm sorry if this is not the right way to start a topic. Let me now about that.
My doubt here is the folowwing: I'm using an Arduino Uno and trying to program a timer for it. The problem is, i don't have any other plug-in arduino hardwares, only this Uno board and i want to program a timer with many hours of intervals, like 18 hours with a led turned on and many other hours turned off. I've red about the function delay() but i don't know what is the maximum value of milisseconds it supports, also some people said it's not a good function to be used for a long time because can suddenly reset and not work anymore until i get reprogammed.
I don't need to do anything else but to turn on and off a light, so the function delay would be perfect for it, but i have this doubts above.