Lego head tracking


[Epoch] Sent in this simple head tracking project using Lego pieces. He’s made a custom mount to hold 3 Lego light sensors on a baseball cap. Then, after modifying his webcam for IR with some floppy disk scraps, he loads up the free-track software and can control his games. For convenience, he has programmed the Lego Nxt to only turn on the lights while he’s holding a contact sensor. You can see it in action after the break. This appears to be very similar to [Johnny Lee's] head tracking. Judging by the video, it’s not as smooth though.


  1. Nicolas says:

    Impressive work , Congratulation !

  2. Andrew says:

    -1 cool point

    were the legos really necessary?

  3. Orlok says:

    What? If anything, the Lego bricks make the project even cooler.

  4. concino says:

    Lego is not necessary at all, you can rig this with 3 infrared LEDs, and a battery pack from radio-shack, and it wouldn’t require $200 Lego Robotics kit. It must be an April’s fool joke.

  5. Buzzkill says:

    +2. 1 to negate your -1 and 1 just because like bacon makes anything you eat better, all hacks are better hacks when you use legos.

  6. huh? says:

    -1,000,000,000 for the legos. has hack a day been hit by the recession?? judging by this post hey must have…

  7. Skyler Orlando says:

    Legos >= any other platform.

    If you can do it, good for you.

    If you can do it with lego mindstorms, even better.

  8. epokh says:

    Yes it’s very easy to build a cheaper one,
    you can have a look here:

    I just uploaded some photos of my previous prototype.

  9. Steewy says:

    Troppo Tosto!!!
    ePock Forever!!!

  10. Wwhat says:

    I think this is unique in that there’s really nobody that wants to be seen with this at all on this planet. (I assume the inventor HAD to though) :)

  11. epokh says:

    ahahahahahahah … true!

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