DIY Ambilight: Prepping the WS2812B Strip

The first step in taking the Arduino-based ‘ambilight’ from concept to completion is to modify the LED strip so it fits nicely around the monitor.  Like most addressable LEDs, the 5m roll I’m using has cut lines where you can trim it.  Because each pixel is its own self-contained circuit, you can arrange them in any shape or number you can think of so long as you connect the three wires: power, ground, and data.

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Making an ‘Ambilight’ with WS2812B LEDs and Adalight: Proof of Concept

As I do more and more coding for the Footwell NeoPixels project, my mind started to wander with ideas of what else I could use addressable LEDs for. One such idea is to create an ‘ambilight’ – a backlight for a TV or LCD monitor that reads the color data onscreen and creates a glow around the bezel which matches or ‘extends’ the color to the surrounding wall. The idea is that it adds ambiance (hence the name), though it also helps with eye strain by reducing the contrast between the bright screen and the dark wall behind it. I had put a strip of single-color white LEDs behind my previous monitor and it helped tremendously with eye strain, but I figured if I was going to do the same I may as well take it up a notch.

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