I'm working in a project to make a communication between the RPi and the XBee module, but I really don't know how to begin. I'm looking for some ebooks to learn but I didn't find yet. Does anyone have some idea about how to begin?
The easiest way to hookup the XBee module to the RPi is through an Xbee USB adapter (hardware wise).
I thought this was a really easy tutorial to follow. It also goes over setting up an Arduino with Xbee.