by robosang » Fri Dec 17, 2010 12:49 pm
If you use passive tag, mostly it come with unique ID, that's all.
If you using Mifare, you can put data in it, not like uC, just pure data, such as your name, money balance, points
We don program the RFID tag, normally. We recognize the RFID tag's ID and record it. for example I have an ID of "12345678" which is unique. So when the RFID read "12345678", the uC should be program to recognize that is is my tag and record that I have come in, or allow me to access or record the time I scan the card, something like that.