Perimeter Alarm using a $1 laser pointer

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This video shows how a $1 laser pointer and a small microcontroller can create a perimeter alarm that covers a large area.
  1. R Watson
  2. Perimeter alarm
  3. perimeter security
  4. perimeter security system
  5. Pic processor security system
  6. alarm system with a microchip
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Комментарии
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Cool, didn't know you could make these things for cheap!

Minacious_Shenanigans
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Impressive!!
It's always great to see people tinkering around and trying stuff :D
I'd suggest looking into something like Arduino, it's really handy and there's kits with all the components you might need in them. Could be something you'd find useful

jad
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Good little video -- its cool what can be done simply.
I was looking at some security in this manner. Seems hard to find any pointers that stay operative for more than a few days. Even more high end ones as well -- perhaps I'm just unlucky.

RelentlessHomesteading
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