My modifications to the adalight ambilight code for fastled to use SK6812 RGBW Leds.
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This is the Adalight library with the Arduino code modified to use FastLED ( This expands Adalight to, in theory, work with any supported FastLED strip including WS2812B (aka Adafruit NeoPixels).

In addition to ambilight setups, the protocol can be used to stream any color data from a computer to supported LED strips (data rate limited by serial throughput).


Open the LEDstream_FastLED file in the Arduino IDE and edit the setting definitions at the top for your setup. These include:

  • Number of LEDs
  • LED data pin
  • Max brightness
  • LED type
  • LED color order
  • Serial speed
  • Serial timeout length

There are also optional settings to configure a dedicated ground pin and to put the Arduino into a "calibration" mode, where all LED colors match the first LED.

Upload to your Arduino and use a corresponding PC application to stream color data. The Processing files are included, though I would recommend using Patrick Siegler's (@psieg) fork of Lightpacks's Prismatik, which you can find here.

Issues and LED-types

I've only tested the code with the WS2812B strips I have on hand, but so far it performs flawlessly. If you find an issue with the code or can confirm that it works with another chipset, please let me know!

Credits and Contributions

The base for the original FastLED modifications is this gist by James Bruce. Thanks James!

Pull requests to improve this software are always welcome!


Adalight is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Adalight is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with Adalight. If not, see