Abstract —Ad-hoc wireless network technologies like ZigBee and 802.15.4 have been used in a variety of domains including home automation. With current developments in cross-protocol integration, sensor fusion and lower costs, these technologies also lend themselves naturally to other consumer applications. One emerging area of such consumer applications is pervasive and learning games. With the realization that children are not getting enough exercise, parents and teachers are interested in their children engaging in higher levels of physical activity. Pervasive and tangible learning games superimpose networking and sensor technologies on familiar outdoor game formats to create games that make children engage in physical activity in addition to learning. This paper presents the design and development of an open-source toolkit and the associated middleware that allow developers to build a variety of pervasive learning games using ZigBee and 802.15.4. Various sample learning games constructed by using this toolkit are also discussed.