Dan Shiffman and I are continuing development on our Processing library for Digi’s XBee radios. The 1.1 library now facilitates receiving single sample I/O packets in API mode from both the Series 1 and ZNet radios (formerly known as Series 2), and returns an object that contains the analog values, digital values, sender’s address. Please let me know if you are using this library. Your feedback will helps us make it better.
You can download version 1.1 from the main XBee API Library for Processing page.