RFID is just brilliant. So much can be done with it, and it's fair simple - awesome. Today I got my first hands on experience of using RFIDs with Arduino boards. I added a basic video above showing the Arduino logging the RFIDs ID number in the serial port (white bit of the screen with all the numbers...).
Now we have 2 weeks to come up with a use for RFIDs and then put it in practise. Then present it to our peers. My group consists of me, Ollie and Jay and we are planning to attach the RFID to our phones and use it to lock our computers when we leave the computer (taking the phone). By working out how to get Arduino to press 'Option+CMD+EJECT' (mac) so it will lock the computer. Then when you return we will have Arduino press 'Spacebar' to bring up the password prompt (so the user can unlock the computer) or even have Arduino enter your password as well. This involves getting Arduino to talk to Processing so we will have to do a bit of research... More coming soon!