Arduino with using Adafruit NeoPixel library set one color, fade random pixels in strip on and off So I am trying to get random pixels to fade on and off at one color. I want to create a power moving inside an item effect.  I have several examples of the whole strip fading in and out, but cant seem to nail down how to fade random pixels on and off at different intervals.  I want to have some on and some off, some fading out while others fading in, all on different LEDs at different times.  Can this be done?
You simply have to treat each pixel individually.


Pick a pixel
Add it to a fade list
Fade all the pixels in the list by a step
Remove pixels which are below some threshold
Repeat


How you do those things like picking the pixel is up to you. You'll probably want to brighten some as well, using a similar algorithm.