Tag everything that moves in the school, read it at very door. Here comes the OpenPCD project. Steve
OpenPCD Passive RFID Project - OpenPCD: " Free OpenPCD and OpenPCD 2 RFID reader design."
RFID OPEN CAMPUS
Develop new standards
Read the development of the IP adress www.rfidcampus.com rfidoc/file.php/1/WhitePapersDepot/ODINTechnologies/epc_whitepaper.pdf