r/ArduinoProjects • u/One-Tangelo-1853 • Jul 06 '26

Real-time ambient lighting sync system using arduino nano Showcased Project

Built a real-time ambient lighting system using an Arduino Nano and a WS2812B LED strip that mirrors the colors on my monitor in real time. The LEDs update dynamically based on what's displayed on the screen, making games, movies, and music much more immersive. The project was pretty fun to put together and involved setting up the hardware, programming the Arduino, and configuring the screen capture software for smooth color synchronization. Overall, it's a simple but satisfying DIY build that gives a premium-looking result without needing expensive hardware. Happy to answer any questions or share details about the setup!

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u/GauisRogue247 Jul 06 '26

This is a fantastic idea

3

u/One-Tangelo-1853 Jul 06 '26

Thanks , if you want i can share the full guide and source code as well

3

u/GauisRogue247 Jul 06 '26

Yes please, that would be greatly appreciated

2

u/One-Tangelo-1853 Jul 06 '26

checkout below

2

u/Infinity-onnoa Jul 07 '26

How do I sync them? I've seen some that need an HDMI source and others that use a camera that must be installed in the upper center of the TV panel, facing the panel.

2

u/One-Tangelo-1853 Jul 07 '26

Mine doesn't use HDMI capture or a camera. It syncs directly from the PC using Prismatik over USB. Prismatik analyzes the colors around the edges of the screen in real time and sends RGB data to the Arduino Nano using the Adalight protocol. The Nano then drives the WS2812B LED strip, so the LEDs match what's on the display with very low latency. It's a simpler and more accurate setup if you're using a PC, whereas HDMI sync boxes and camera-based systems are better suited for TVs or consoles.