Detailed shot of a Raspberry Pi circuit board showcasing its components, USB ports, and microchips.

Building a DIY Ambilight for Your TV Using a Raspberry Pi and Hyperion

Bylumifix

Introduction

Imagine watching your favorite movie or playing a game, and the colors on your TV extend beyond the screen, lighting up your wall in perfect sync. That’s exactly what an Ambilight setup does — and the best part? You can build one yourself for a fraction of the cost using a Raspberry Pi and Hyperion software.

In this guide, we’ll walk you through how to build a DIY Ambilight system step-by-step, turning your ordinary TV setup into a cinematic experience.

What is Ambilight?

Ambilight (short for Ambient Lighting) is a lighting system that projects colors from your screen onto the wall behind your TV. Originally developed by Philips, Ambilight enhances immersion by extending the visuals beyond the display, making your viewing experience more dynamic and engaging.

A DIY version using Raspberry Pi and Hyperion software works similarly — it captures video signals and translates them into color commands for LED strips mounted behind your TV.

What You’ll Need

Before you begin, gather the following components:

  • Raspberry Pi 3 or 4 (with power supply)
  • MicroSD card (8GB or higher)
  • Addressable LED strip (e.g., WS2812B or SK6812)
  • Power supply for LEDs (5V, rated for your LED count)
  • HDMI splitter (for grabbing the video signal)
  • HDMI-to-USB video capture card
  • Jumper wires & connectors
  • Hyperion software (Hyperion.NG)

💡 Tip: You can find all these parts online easily, and the total cost is usually under $60–$80.

Step 1: Set Up Your Raspberry Pi

  1. Download Raspberry Pi OS Lite from the official Raspberry Pi website.
  2. Flash it to your microSD card using tools like Balena Etcher.
  3. Boot your Raspberry Pi and connect it to your network (Wi-Fi or Ethernet).
  4. Enable SSH for remote access.

Once the Pi is up, it’s time to install Hyperion.NG — the brain of your Ambilight system.

Step 2: Install Hyperion.NG

  1. Open your terminal or SSH into your Pi.
  2. Run the following command: wget -qO- https://github.com/hyperion-project/hyperion.ng/releases/latest/download/Hyperion-2.0.15-Linux-armv7l.deb | sudo dpkg -i -
  3. Once installed, open Hyperion’s Web Interface by entering your Pi’s IP address in a browser, like: http://<your-pi-ip>:8090
  4. You’ll now see the Hyperion dashboard, where you can configure your lights and input settings.

Step 3: Wire Up the LEDs

  1. Mount your LED strip behind the TV edges — make sure the arrows on the strip point in the correct data direction.
  2. Connect the data pin of the LED strip to the GPIO18 pin on your Raspberry Pi.
  3. Connect the 5V and GND lines from the LED strip to the external power supply and to the Pi’s ground.

⚠️ Warning: Don’t power LEDs directly from the Pi! They draw too much current. Always use a separate 5V power supply.

Step 4: Connect Video Input

For Hyperion to detect screen colors, it needs to read the video signal from your TV’s HDMI output.

  1. Plug your HDMI splitter into the TV’s input source.
  2. Connect one output to the TV and the other to the HDMI-to-USB capture card.
  3. Plug the capture card into your Raspberry Pi’s USB port.

Now Hyperion can analyze your video signal and generate matching light effects.

Step 5: Configure Hyperion

  1. In Hyperion’s web interface, go to LED Hardware settings.
  2. Select your LED type (e.g., WS2812B) and number of LEDs.
  3. Set up the layout to match how your strip runs along your TV edges.
  4. Go to Capture Hardware and enable USB Capture Device.

You should now see a live preview of your video signal and synchronized colors.

Step 6: Test and Customize

Turn on your TV and watch as the LEDs react to the on-screen content!

  • Adjust brightness, smoothing, and color balance in Hyperion’s settings.
  • Try different effects like “Rainbow Mood” or “Warm White Glow” when your TV is off.
  • You can also control the lights using your smartphone through the Hyperion app.

💡 Pro Tip: For even smoother performance, overclock your Pi slightly or use a Raspberry Pi 4.

Benefits of DIY Ambilight

  • Immersive experience: Extends visuals beyond the screen.
  • Budget-friendly: Costs less than branded systems.
  • Customizable: Adjust color patterns and effects anytime.
  • Smart integration: Works with Alexa, Google Home, or Home Assistant.

Final Thoughts

Building your own Ambilight setup is one of the most satisfying DIY tech projects you can do. It’s affordable, fun, and gives your home theater or gaming setup an instant wow-factor. With Raspberry Pi and Hyperion, you’ll enjoy a dynamic lighting experience that rivals premium systems — without breaking the bank.

So grab your tools, fire up your Pi, and bring your entertainment space to life!

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