Recently I was impressed by NeoPixel RGB LEDs and LED stripes. The main advantages of this LEDs are:
- you can control color using only a single pin of your micro-controller (ordinary RGB LEDs are controlled using 3 pins because they are 3 LEDs of each color in one package)
- you can chain LEDs in stripes (or buy manufactured stripe) and address each led individually.
Working with this LEDs for newbies especially using 3.3v micro controllers could be not very straightforward and I’d like to share my experience here.