The Arduino powered Laser trip wire system project is currently over on the Kickstarter crowd funding website looking to raise $3,000 pledges to make the jump from concept to production.

That’s when I saw several instructables (Laser Tripwire Alarm, Arduino – Laser Tripwire Alarm System, and Super Easy Laser Tripwire, among others) using a laser tripwire.

[Ronnie] built a laser trip wire complete with an LCD screen and keypad for arming and disarming the system. The brains of the project is an Arduino.

[Ronnie] built a laser trip wire complete with an LCD screen and keypad for arming and disarming the system. The brains of the project is an Arduino.

It works in a home aquarium with toys, but could this laser tripwire alert people to hungry sharks approaching swimmers?

In the video above, MAKE Magazine shows how to create your own laser tripwire for just a few dollars worth of electronics equipment. If you want to get into the nitty-gritty, you may need some ...

Sure, you could opt for a laser tripwire that puts intruders on blast via Twitter, but there's something to be said for the simplicity of the latest security system to come from Instructables user ...

In this project, we create a joystick-controlled laser by connecting two servos to a joystick and using this setup as a pan-and-tilt controller for a laser pointer.

The Daytripper does that all for you, using a laser tripwire that automatically hides contraband apps or websites whenever it’s triggered.

The SpyNet Laser Tripwire set, which includes two coffee mug-sized end units and a mirror for redirecting the laser beam, creates a real, working laser tripwire suitable for protecting any ...