For a project my group recently bought an ID-20 RFID Reader, the breakout board, and tags. However if you look at the datasheet for the ID-20 it does not tell you how to set up the reader, but shows a picture of the reader and the pin outs connected to various other parts.(http://www.sparkfun.com/products/8628)
Do i have to build the circuit in the picture for the reader to work? We were planning on connecting this to a separate basic stamp 2 micro controller and interface board and the bread board space available is limited (we also did not buy these extra parts in the diagram). If you have used this did you create that circuit? or just use the USB device spark fun provides. I did not bother buying the USB device since the final product we are making will not use a computer.
-Thank you