Wireless Engineering and Technology, 2017, 8, 71-86 http://www.scirp.org/journal/wet ISSN Online: 2152-2308 ISSN Print: 2152-2294 DOI: 10.4236/wet.2017.84006 Oct. 31, 2017 71 Wireless Engineering and Technology Design of a Li-Fi Transceiver Pavas Goswami, Manoj Kumar Shukla # Department of Electronics, School of Engineering, HBTU, Kanpur, India Abstract The latest uproar in this era is about a technology termed as Light Fidelity or more commonly known as Li-Fi. There are currently two trends being seen: First, the extension or enrichment of wireless services and other being in- creased in user demand for these services, but the available RF spectrum for usage is very limited. So the new technology of Li-Fi came into picture, which uses visible light as a source of communication. Li-Fi is the most recent de- velopment which is resourceful. In this technology, LEDs are used to transmit data in the visible light spectrum. This technology can be compared with that of Wi-Fi and offers advantages like increased accessible spectrum, efficiency, security, low latency and much higher speed. This research paper aims at de- signing a Li-Fi transceiver using Arduino that is able to transmit digital data. The hardware has been designed using Eagle CAD (version 7.1.0) tool and Proteus design tool (version 8). The software coding is done by using Java (version 8). Successful transmission and reception of text, image and video signals is carried out on the transceiver. Hence this research work gives an innovative way of designing a transceiver which works by using off the shelf low cost components and using visible light spectrum. Keywords Light Fidelity (Li-Fi), Visible Light Communication (VLC), Arduino, Light Emitting Diode (LED), Optical Wireless Communication (OWC) 1. Introduction Visible light communication (VLC) is the term given to an optical wireless com- munication system that conveys information by modulating light that is visible to the human eye. Communication is achieved by switching LED lights on and off at a speed higher than what is perceptible to the human eye. Eyes can detect # Manoj Kumar Shukla is a Professor in HBTU Kanpur. How to cite this paper: Goswami, P. and Shukla, M.K. (2017) Design of a Li-Fi Tran- sceiver. Wireless Engineering and Technol- ogy, 8, 71-86. https://doi.org/10.4236/wet.2017.84006 Received: September 16, 2017 Accepted: October 28, 2017 Published: October 31, 2017 Copyright © 2017 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access