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Comments

  1. tess says:

    Don’t you mean a nickel?

  2. eesh says:

    First a “stepper motor” and now a five cent dime? Wow, unsubscribing now.

  3. selfSilent says:

    Good idea but it can’t do diagonals.

  4. anachrocomputer says:

    There’s a sensor that you can buy (I think Sharp make it) that’s a tiny plastic box with a tiny plastic bead inside it. The bead rolls about and breaks infra-red light beams, which gives an indication of orientation. They’re used in digital cameras to detect a “portrait” or “landscape” shot. Might be possible to make a DIY version of that?

  5. oskay says:

    The Sharp GP1S36J0000F is about $2, and has two sensors that can be blocked by a tiny iron ball. (I have some, but haven’t actually had a chance to play with them.)

  6. shivam says:

    realy great mind awasomeeeeeeeeeeeeeeeeeeeeeeee.