[over9k] used his Arduino to set up a laser trip wire. The laser is mounted along side the Arduino, reflects off of a mirror, and shines on a photoresistor that interfaces via a voltage divider.

There are hundreds of cool Arduino projects out there, but none of them are quite as cool as this “augmented reality laser cutter ... can build yourself a real security scanner for ...

Laser cutters are great DIY tools, but they're pretty expensive. If you'd prefer to build your own, Instructables user SilverJimny shows you how using an Arduino. The build here uses an Arduino ...

The Arduino powered Laser trip wire system project is currently over on the ... “Meet the Multi-Program Ultimate Laser Tripwire Security Set! : This set includes four unique programs!

This project uses a Raspberry Pi 2 or 3, an Arduino Uno, some servos, and a USB webcam. The end result is a camera mounted to the servo that’s controlled by the Arduino. Everything else is ...

Instructables member Patrick Panikulam has created a versatile wireless Arduino pen plotter and laser engraver, powered by an Arduino UNO microcontroller and offering a work area of 200 x 162 mm ...