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Adventures in Engineering
The wanderings of a modern ronin.

Ben Cantrick
  Date: 2006-06-02 23:59
  Subject:   [Digg] Huge nerd vs. Lightswitch. Round 1. FIGHT!!
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I came up with this one after fishing an old touch sensitive floor lamp out of a dumpster. It was a nice lamp, but it tended to flake out, changing brightness or toggling when I didn't touch it. I thought it would be cool if you had a lamp that you didn't have to touch at all, but could just gesture at to bring the lights up. So much so that I waved at that lamp like an idiot for at least fifteen minutes, hoping it had somehow become some sort of "super-lamp" that could toggle if I simply threatened it. I decided to design such a lamp for my brother Corey, who kinds of works things by threatening them anyways. Incidentally, I still haven't made him his fightswitch, and have too much fun playing with my prototype to give it up.

http://www.gogglemarks.net/index.php?action=display&tag=fightswitch


This guy really made this a lot more complicated than it needed to be. He could have gone with just the antenna, one schmitt trigger buffer (triangle thing) and the microcontroller. In fact, you don't even strictly have to have the microcontroller in there, any circuit that allows a person's finger to tamper with the capacitance of a ring oscillator will exhibit similiar behavior. Still darn cool, though.
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Triggur
  User: triggur
  Date: 2006-06-04 12:30 (UTC)
  Subject:   (no subject)
Ever seen a Theramin?
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Ben Cantrick
  User: mackys
  Date: 2006-06-06 05:18 (UTC)
  Subject:   Not in person.
But yeah, I understand the concept.
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