Abstract: Li-fi is a future upcoming technology and a subset of optical wireless communication. The scope of this paper is to provide highway routing in areas which lack sign and direction board, network or GPS system, using microcontroller, street light poles and LED. Stored data is transmitted by the street light bulb-LED by modulating the visible light, to any vehicle approaching to that particular pole having Li-Fi receiver. Li-Fi transmitters are installed at a gap of few kilometers and at each pole transmitter give the direction with respect to its position. This project can prove to a great relief for the travelers specially those travelling at night. It provides high speed, high security and low cost.
Keywords: Li-Fi, Visible Light Communication (VLC), Light Emitting Diode (LED)