Know Someone Is At the Door With Pressure Activated Doormat Chime

Swann Wireless has developed an indoor/outdoor doormat unit that is simply placed under a mat or carpet at your home or business entrance.  The chime unit is to be placed within 100 ft (30 m) of the mat.  It features three customizable chimes that can be adjusted to the volume of your liking.  The doormat [...]

Source: http://the-gadgeteer.com/2011/07/08/know-someone-is-at-the-door-with-pressure-activated-doormat-chime/

MICROS SYSTEMS MICRON TECHNOLOGY MICROCHIP TECHNOLOGY METHODE ELECTRONICS MENTOR GRAPHICS