Kip Kay has a new video and Instructable on building a laser-beam-triggered alarm system. I don’t know that I’d want to rely on such a thing for actual security, but it might be a fun project nonetheless.
Protect Your Home with Laserbeams! – Link
Hot Topics:
heh
Would be cooler with Altoids tins.
I’d also like to see a battery pack and better mounting system for portability, so I could set these up in a hurry while on secret missions.
mission impossible eh?
tom cruise is in for some serious shit once he sees this
your alarm design wont work!!!! it will stop ringing after the laser beam is “uncut”. how can i make it ring continueously until i turn it off????
What kind of schematic is that?
Where do I get that awesome three terminal 9V battery?
// What's Trending
Raspberry Pi Design Contest
Maker Faire: Day Two
Maker Faire: Day One
Seventeen Sneaky Secret Hides
10 Things to Connect to Your Raspberry Pi
A Photo Tour of Maker Faire
Adam Savage Exhorts the Makers to “Work Hard and Work Smart”
DIY Hacks & How To’s: Swiss Army Key Ring
// What's Shared
A better way to slice a pumpkin
DIY Nerf Darts
In the Maker Shed: Minty Boost USB Charger
100 Dollar Store Organization Ideas for Craft Rooms and Beyond
Mad’s Mouse House
Lace Princess Crowns
I Have a (Puzzling) Dream
Play the Rings of a Tree Trunk Like a Record
// Most Commented
DIY Hacks & How To’s: Get Emergency Power from a Phone Line
Resin Casting: Going from CAD to Engineering-Grade Plastic Parts
Ten Tips for Screws and Screwdrivers
Ten Tips for Better Measurement
Makers on TV: Big Brain Theory
Arduino Announces New Wireless Linux Board
Pitches with Prototypes: Solar Tracker
Tool Review: BioLite CampStove