Books on XBee?

Using Arduino Networking, Protocols, and Devices
1

http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Dstripbooks&field-keywords=xbee

Which book is good?

2

Which book is good?

Any book is good. I have hundreds. The first one, though, is great.

3

A lot of people recommend Faludi's book, but unfortunately he didn't know enough
to use 5V-to-3.3V level-shifters between the Arduino and the XBee modules. Other
than that, it probably has good info.

4

There's also plenty of info at www.digi.com, who makes modules.

5

oric_dan:
A lot of people recommend Faludi's book, but unfortunately he didn't know enough
to use 5V-to-3.3V level-shifters between the Arduino and the XBee modules. Other
than that, it probably has good info.

Yes and yes. Or use current limiting resistors with LEDs.

These are essentials:

http://ftp1.digi.com/support/documentation/90000982_K.pdf
http://ftp1.digi.com/support/documentation/90000976_M.pdf