Not sure if this should be in the hardware or software section.
As anyone a link to site or know the format from an rfid ID20 device.
I've got a full sketch for it http://wulfden.org/TheShoppe/freeduino/RFID_ID12.shtml
But want to know the format of the incoming data myself.
The datasheet (http://www.sparkfun.com/datasheets/Sensors/ID-12-Datasheet.pdf) says on page 4 that in ascii mode the format is:
STX (02h) DATA (10 ASCII) CHECK SUM (2 ASCII) CR LF ETX (03h)
There are other formats listed too - depends on your RFID card and I guess the chips mode.
Thanks that`s what I was looking for .