Since we are currently surrounded by IoT systems that communicate wirelessly with each other, it is extremely important to know how they work, how to communicate, and how to manage them so that we can use these systems to their full potential. In this paper we will analyze communication in 433 MHz and 2.4 GHz radio frequencies. 433 MHz frequency communication modules will be compared with 2.4 GHz frequency communication modules both in terms of technical performance and in terms of the electromagnetic radiation they produce.
This project presents a concept of monitoring the most important parameters of a vehicle. The main purpose of the parameter monitoring system is to announce the driver when one of them exceeds the normal operating values. The system contains secondary devices and a development board. With this system the parameters are taken from the car's computer and displayed for the driver on a screen without disturbing his attention in traffic. The most important thing about this system is that it can display parameters that are not found on the car's dashboard.
This project is based on a 3D LED cube with dimensions of 5x5x5. Besides the physical realization of the cube, a code has been developed with which all the letters of the alphabet can be displayed, also all the numbers and various 3D animations. This 3D LED cube can be used for road signs, warning signs for trucks carrying dangerous products or as a simple commercial advertisement.
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