Datasheet



Advanced Coding

FastLED Library

If looking to boost your NeoPixel prowess, you may find everything you need in the FastLED

library (https://adafru.it/eip). It’s an alternative to the Adafruit_NeoPixel library, providing more advanced features like

HSV color support, nondestructive brightness setting and high-speed mathematical operations. (It works with other

LED types too, such as DotStars!)

FastLED works altogether differently; it’s not a drop-in replacement for Adafruit_NeoPixel, and existing sketches will

require some rewriting.

Note: FastLED currently works only with RGB NeoPixels; RGBW pixels are not yet supported. At all. You will get

incorrect and unpredictable colors.

We don’t write or maintain FastLED, and can’t provide software troubleshooting advice.

If requesting help with a

FastLED NeoPixel project in the forums, we’ll usually ask that you try one of the known-working Adafruit_NeoPixel

example sketches to narrow down whether it’s a hardware or software issue.

Visit the FastLED web site to get started. (https://adafru.it/eip)

FAQ and Further Programming Insights

Help! My Arduino servo code stops working when combined with NeoPixels!

