• Rohit Sanjay Bobade
• Sarvesh Sanjay Mali
• Yashodeep Dnyaneshwar Deshmukh
• Mrs. Nilima Satish Warade

— As the demand for high-speed data in wireless communications increases day by day with the significant increase of the number of users, Radio Frequency (RF) spectrum become one of the scantest resources in the world. RF technologies have limitations of the regulated spectrum, spectrum congestion, expensive licensing, low bandwidth and low-speed broadband connection. The available huge visible light communication (VLC) spectrum band ranges from 428 THz to 750 THz. So the new wireless technology known as light fidelity (Li-Fi ) has become a new source for communication of data and it has been identified as a powerful and promising complementary and/or alternative to the existing radio frequency(RF) wireless communication technology which uses visible light as a medium to deliver high-speed data communication. Li-fi is an optical wireless communication technology which utilizes light emitted from Light-emitting diode bulb for simultaneous transmission of text and audio signals which is discussed in this paper. Continuous improvements in wireless communication systems, e. g. 3G, 4G, etc.., require higher bandwidth and due to the lack of sufficient Radio Frequency spectrum, we should adopt a wireless system which will support wide bandwidth. So the new technology of Li-Fi came into the aid. Light fidelity (Li-Fi) is a new short range optical wireless communication technology which provides data transmission like text, audio, video by using Light-Emitting Diodes (LEDs) to transmit data depending on light illumination properties. It uses the visible light spectrum which is 10,000 times larger than the entire radio frequency spectrum.

Optical wireless communication (OWC), VLC, LED, Li-Fi, Solar panel, Arduino, Bluetooth, radio frequency, high speed data.

"Audio And Data Transmission Using LI-FI Technology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 6, page no.d378-d381, June-2023, Available :http://www.jetir.org/papers/JETIR2306348.pdf

"Audio And Data Transmission Using LI-FI Technology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 6, page no. ppd378-d381, June-2023, Available at : http://www.jetir.org/papers/JETIR2306348.pdf