Motion Sensors Hacks

By combining the technologies of the Arduino and a simple motion sensor, you can create a water cannon which sprays a target when it senses motion. It uses a window washer pump and a servo for aiming. See more details and code. We've seen a more...

A table filled with hundreds of LEDs and motion sensors equals LEDs you can control with your hands. Wave your hand over the table and enjoy the show. The kitty might think it's alive but your guest won't help but admire! Have fun building it and...