This voltage can be read by an Arduino digital input and then the Arduino can act upon it. The PIR Motion Sensor on the left is made by Parallax and sold by Radio Shack. The one on the right comes ...

It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic switch called a relay, then plug in your fan, and you’re good to go. If that sounds ...

The Leap Motion controller is a rather impressive little sensor bar that is capable of ... The actual code being sent to the Arduino is pretty simple. The Leap Motion SDK does all the complex ...