Abstract:
The project basically revolves around the concept of Visible light communication (VLC) which was put forward by Professor H. Hass in Japan. Visible light communication is a subset of optical wireless communication. Visible light communication uses light wave’s frequency spectrum which has the range of 300KHz to 900GHz.
The project basically aims to make the hardware and software combination for the secure transmission and reception of data from one point to another point remotely using a LASER diode. Real time secure transmission and reception of data will be done through a microcontroller and a Graphical User Interface. The data we are transmitting includes audio file, real time voice signal, text message, text file and image. Graphical User Interface will be running on Visual Basic while the coding of microcontroller will be done through Arduino IDE editor. AES 128 bit encryption technique will be used to encrypt the data. Encryption will be done in microcontroller for security purpose. The laptop or computer connected to hardware will transmit data via a LASER diode to the other laptop or computer which will also be connected to a hardware. Graphical User Interface will be running on both the laptops which will allow the transmission and reception of text message, text file and image, while the transmission and reception of audio file and real time voice signal will be done in hardware portion.
