The main aim of this project is to transmit data to remote end wirelessly using Li-Fi Communication. PS2 keyboard is used to enter information which is interfaced with decoder to give serial data. The data is given to Li-Fi transmitter. The Li-Fi receiver receives data and same is given to Atmega328 microcontroller based on Arduino UNO. The microcontroller then displayed data on 16×2 LCD.
LI-FI provides transmission of data through illumination by sending data through an LED light bulb that varies in intensity faster than human eye can follow. It is possible to encode data in the light by varying the rate at which the LEDs flicker on and off to give different strings of 1s and 0s. The LED intensity is modulated so rapidly that human eyes cannot notice, so the output appears constant. This method of using rapid pulses of light to transmit information wirelessly is technically referred to as Visible Light Communication (VLC). Since in case of Li-Fi system optical source of light has been used as a data transfer medium, it can be safely used at the places where radio waves can harm the environment.
Software:
- ARDUINO IDE
- EMBDDED CPP CODE
- PROTEUS SIMULATOR
Hardware :
- ATMEGA328 Microcontroller (Arduino UNO)
- PS2 Keyboard
- Keyboard Decoder
- 16×2 LCD display
- Li-Fi Transmitter and Receiver Module
- Regulated Power Supply