* Readers learn how to build their own ultimate RFID projects with a few simple tools, some off-the-shelf parts, and this book-no surgery required! * Similar in theory to bar code identification, RFID (radio frequency identification) systems consist of an antenna and receiver, and are now available for hobbyists and hackers to tinker with * Some of the featured "bleeding-edge" projects show readers how to unlock their front door wirelessly, access their car without inserting a key, add security to home computers, and control the lights in a room * Safe at home-readers learn to build an RFID-activated safe, allow only the family dog to come and go through the doggie door, and locate items anywhere in the house with RFID tracking