Development of energy efficient ZigBee module

This study investigated and developed an energy efficient ZigBee wireless module using hardware technique. The MG2455-F48 RF SoC chip was used in developing the ZigBee wireless module. This chip consists of 2.4GHz RF part and 8051 family microcontroller. ZigBee modules are powered by a battery because it has to be movable. Energy saving of the ZigBee module has been one of important issues because its battery life time is limited. Nowadays many energy efficient software algorithms have been developed for ZigBee modules, that are used in data transmission between nodes. A node means a ZigBee module. In order to save energy in the ZigBee module, software algorithm was not used in this study, but we used the hardware technique. The microcontroller of ZigBee controls power of the sensors which connected on the ZigBee module. Sensors are active only when they need to transmit data and in other case the module switches to the power down mode and save energy.