In recent years, internet of things or IoT became one of the hottest topics in field of computer science and electrical engineering. The core of each IoT device is embedded system, which is based on microcontroller, sensors and actuators. Based on data obtained by sensors, microcontroller generates response, which is executed by actuators. We developed embedded system, which could be used as a tracking device for suitcases. Apart from embedded system, we developed server-side application and mobile application for devices with Android operating system. Server application is used to store the data obtained from tracking device and acts as intermediate point between mobile application and embedded system. Mobile application offers user interface for interaction with tracking device.
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