This book is designed to everyone who want to get started with XBee3 Zigbee 3 development. Demo scenarios are provided to accelerate your learning with step-by-step approach. This book uses Python as programming language. The following is a list of highlight topics in this book: * Preparing Development Environment * Set up Digi XBee3 Zigbee 3 * XBee3 Zigbee AT Command * XBee3 Zigbee 3 Programming * XBee3 ZigBee Digital I/O and ADC * Working with Sleep Mode * XBee3 ZigBee Networking