IEEE 802.15.4 is a standard protocol to build WPAN network. This book helps you how to get started with IEEE 802.15.4 programming through XBee IEEE 802.15.4 device. Sample codes are given to illustrate how to work with XBee. The following is a highlight topic list in this book. * Preparing Development Environment * Getting started with XBee IEEE 802.15.4 * XBee AT Command * XBee Programming using Python * XBee Digital I/O and ADC * Working with Sleep Mode * XBee IEEE 802.15.4 Networking * Integrating XBee with Arduino, Raspberry Pi and TI MSP430 LaunchPad