NeoPixel Ring LED Pattern Project Source Code Arduino
What is Neopixel Led ?
NeoPixel LEDs represent the first widely available DIY form of digital RGB LEDs
with example code, libraries and supporting content to make them useable for makers everywhere.
From just a single pin you can control a as many LEDs as you want,
however, there are a few limitations.
You need to be careful when using RGB LEDs because they draw so much power.
If you try to power more than a couple of the 5V pin of your microcontroller,
you will most probably fry the board. Use a separate 5V power supply that can handle the total current draw.
NeoPixel Ring LED Pattern Project Source Code For Arduino