Reception of audio signals received from different LEDs used in the low cost LI-FI systems

In this article we will discuss the possibilities of using different LEDs in low cost LI-FI systems. The results of the studied LEDs, their advantages and disadvantages will be analysed. The presented LI-FI systems are designed in order to use a minimum number of electrical elements in order to design and build such systems by students during laboratory exercises as a practical exercise. The main goal is to acquaint students with the advantages of LI-FI systems. The presented LI-FI systems are designed in order to use a minimum number of electrical elements in order to design and build such systems by students during laboratory exercises as a practical exercise. The main goal is to acquaint students with the advantages of LI-FI systems.