Controlling Addressable LED's

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The two most popular types of addressable LED strips are WS2812's aka NeoPixels and APA102's aka DotStars. The latter names are from Adafruit. Here's their comparison guide:

Reference:

* https://learn.adafruit.com/adafruit-dotstar-leds/overview

===3 Pin Addressable LED's===
These are primarily the WS2811, WS2812, WS2812B or NeoPixel series of LED's.

* These are inexpensive compared to 4 pin strips.
  * You can use several pins to drive multiple strips with them.
  * The disadvantage is that FastLED disables interrupts, so you can't use libraries that rely on interrupts (such as IR remote) at the same time on an 8 bit AVR.

===4 Pin Addressable LED's===
These are primarily WS2801, LPD8806, APA102 or DotStar series of LED's.

* The advantage of these is that FastLED doesn't disable interrupts, so you can use 3rd party libraries that require interrupts.
  * In addition, these LED strips support a much higher refresh rate and can be used in POV applications.
  * FastLED doesn't support multiple strips though.

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Controlling Addressable LED's

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