Abstract
A Wireless Sensor Network (WSN) is an ad-hoc wireless network formed of spatially distributed autonomous sensor nodes which possess the ability of performing computations, communication & executing different sensing tasks. The design & development of wireless sensor nodes is carried out using Bluetooth as wireless networking technology. The use of Bluetooth helps to utilise many features of Bluetooth enabled devices, which could be used as an infrastructure gateways, actuators or user interfaces. A modular design approach is adapted for design & development of wireless sensor node thus making it easy to add, remove or modifying the sensor with much shorter development cycles while also supporting WSN-behavior in terms of power consumption & node operational lifetime. WSN architecture supports different network topologies like Star, mesh & hybrid Star-mesh network. An embedded wireless sensor node is designed & successfully tested for two different Star network formations.
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