I Have got my ID-12 module active and putting out the RFID tags' details to Serial as

String valu = port.readStringUntil('\n');


... then I print that to serial. But I would like to use the information from the tag to determine changes in Processing environment. For example, change the background color of a box depending on which RFID tag is placed to the reader.

Does anyone know how I can do this or where I may find coding help?

### Setup:

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When you say "serial", do you mean by UART/RS232 or over USB? –  tyblu Feb 9 '11 at 1:26