SparkFun XBee Explorer Regulated
SparkFun Item: WRL-11373
The SparkFun XBee Explorer Regulated takes care of the 3.3V regulation, signal conditioning, and basic activity indicators. It translates the 5V serial signals to 3.3V so that you can connect a 5V (down to 3.3V) system to any XBee module. The board was conveniently designed to mate directly with the SparkFun Arduino Pro series of boards for wireless bootloading and USB based configuration.
J. Luc Paquin – Curriculum Vitae