Welcome to the Digi ZigBee in a Nutshell product training module. This presentation will provide an overview of ZigBee, a global standard for low-power, low-cost, low-data-rate, wireless mesh networking based on the IEEE 802.15.4 standard, and will review mesh networking. It will discuss the IEEE 802.15.4 standard and ZigBee stack layers, and highlight the functions of the device types.