A Raspi Ambilight With HDMI Input

With the Raspberry Pi now most famously known as a $30 media PC, it only makes sense that the best uses for the GPIO pins on the Pi are used for an Ambilight. [Great Scott Labs] put up a great video on using the Pi as a uniquely configurable Ambilight with Hyperion and just about any video input imaginable.

This isn’t the first Ambilight clone [Great Scott] has put together, but for the first version the Ambilight functioned only under Raspbian and not any random HDMI input. The new version solves this by using an HDMI splitter box, feeding into an HDMI to composite converter, and finally into a USB composite capture dongle attached to the Raspi.

With the software in the instructions, the Raspi effectively mirrors the video coming from the video capture dongle. The Pi is running Hyperion to control a strip of WS2801 RGB LEDs, making the back of any TV glowey and blinkey.

Since [Great Scott] is using a component video signal as an input, the adapters necessary to have any device work with this Ambilight are readily available. We’d honestly like to see this build working with the old Commodore disk access screen border going nuts, so be sure to send that in if you ever get that working.

17 thoughts on “A Raspi Ambilight With HDMI Input

  1. nothing really new
    and also the image isnt the best solution because hyperion features a built in grabber which is way better than mplayer. (see github issue 12).

  2. Only compatible with PC, a setup with 1 arduino and a 50 leds, is about 40€. Here, compatible with everything in HDMI, is about 100€.
    This sound fair to me.

    This guys is awesome, i didn’t even imagine a second that is was possible.

  3. If he’s using component video, it should be possible to do this without the Raspi…an STM nucleo with a M4 cortex should be fast enough to process the color signal at the edges of the picture…

    1. I bet you could do that with discrete logic. I wish I had the time to do it, but component video is kind of dead anyways.

      1. Sadly, my Wii still uses component. Then again, I’ve never seen someone use an ambilight for older gaming.

  4. I always wondered if something like this would work with HDCP content but since he is using a PS3, I guess the answer is yes.

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