The purpose of this project is to learn about the basics of the Zigbee standard and XBee radios by demonstrating different applications. This project first introduces the main concepts of Zigbee and how XBee radios communicate. The concepts are further explored by demonstrating three different applications. These applications are the simple XBee chat, API packet sender/receiver and wireless sensor network (WSN). This WSN enables us to measure the light levels in different locations to determine the best location for installing solar panels. The application highlights the advantages of using wireless sensor networks in monitoring and measuring remote readings and then processing them through a centralized station.