I'm new to the Arduino world and loving it, but I've been a little confused on one point. I have an Arduino Diecimila, and for the first time want to use a sensor that outputs serial data (an RFID reader from SparkFun - http://www.sparkfun.com/commerce/product_info.php?products_id=8419).
My question: can you have the RX pin reading from a serial device while the Arduino is hooked up to the computer via USB? I'd like to monitor the incoming RFIDs on the computer.
Sorry if this is an obvious question, but I've had trouble finding a definitive answer. Thanks!