Nick writes -
I noticed you posted a previous project of mine and I thought you might be interested in my latest update to it. Same idea (RFID enabling your front door), only this time it is done completely standalone using the Parallax Basic Stamp 2e and the 13.5 MHz APSX RW-210 RFID reader. Response time, and reliability are very much improved with the new design.
RFID Enabling Your Front Door (with a Parallax BASIC Stamp & 13.5 MHz APSX RW-210) at Digital DawgPound – Link.