Hey guys im currently experiencing issues writting a simple color wipe without delay as im using a push button to switch modes. Instead of wiping accorss the strip the strip changes all at once 
can anyone show me what a color wipe is supposed to look like using millis?
Try this. I haven’t tested it but it should work for the most part or at least give you an idea. You could probably use a wave function but I haven’t played with them enough to know.
Alright ill give that a shot later. And i want the LEDs to stay on at that color after wiping accross the screen. Its for my brother’s light saber 
just made it yesterday but i cant get it to wipe using millis as the timing. I have different colors set but it just changes like a regular RGB strip. And that makes it look cheaper than it is lol
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