Electric-boogaloo is a project mainly written in ..., it's free.
a hackerspace electronic locking system
We're making a little system to lock and unlock our hackerspace door. It attaches to the existing lock knob and is controlled by a little microcontroller. Our first interface to the system will be with some great little rfid tags!
please add to the list and mark your name by an item if you're going to do that thing soon