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Addressable led strip
Install the Adafruit Neopixel library:
To test your led strip just load the example called strandtest in the Examples → Adafruit Neopixel menu.
This simple example can help you get started
References
Adafruit Neopixel Library repository
Adafruit Neopixel Library reference
Adafruit neopixel Uberguide
Sparkfun addressable led guide