Ok...say a line of 50 leds,,, led 1 lights, led 1 stays on, led 2 lights, now led 1 and 2 are on together. Led 3 lights, now 3 leds are on, led 4 lights, now 4 leds are on,,,,, keeps going until all 50 leds are on... after a time they all go off...then the procees restarts...1 led, then 2, then 3, then 4 and so on.
hope that this is clearer..
a line of leds lighting one after another until they are all on..then all of at once,,,,the repeats
Thanks again, Steve