Eureka! Institutional Repository

This bachelor thesis focuses on the analysis of communication protocols and wireless sensor networks. Wireless Local Area Networks provide easy interconnection of digital devices placed in close proximity to each other. Communication between these devices is achieved through various communication protocols. These are Bluetooth, WiFi, and the protocol we will analyze more extensively, ZigBee. ZigBee was chosen based on the advantages it has in relation to the other corresponding technologies. Some of these criteria include low consumption, flexible and scalable network, network security, etc. A wireless sensor network consists of at least one sensor connected to the communication module and a central processor that receives the sensor measurements. The sensors we can use vary according to our needs. Such a network of sensors can be found in many industrial applications and in consumer applications since the Internet of Things (IoT) gets more and more into our lives. In the research section, we are working on creating a ZigBee network where communication is achieved through the Texas Instruments module ez430-rf2500. By connecting a HIH8121 sensor to the network, we receive humidity and temperature measurements and display them on our computer screen