[Bill Porter] is helping a friend out by designing a simple security system for her home. It relies on Xbee modules to alert a base station when doors are opened, or a pressure mat is stepped on. The ...

The Pressure Sensor Module incorporates a material called Velostat with the Arduino. This material adds more resistance when more pressure is applied to the material. This module also uses the RGB LED ...

Another postcard from our sensor-strewn future… Can sensing technology improve and quantify yoga practice? The makers of a prototype device called the SmartMat, a yoga mat with embedded sensor ...