Low cost visible light communication transceiver prototype for real time data and images transfer

Abstract

Research about Visible light communication (VLC) grows rapidly due to the need of innovation in wireless information transmission system. Previous research about low cost VLC prototype has been conducted. The previous resut is still under expectation, the maximum transmission distance was only 15 cm. This research is trying to improve the performance of the low cost VLC prototype by using array LED and array Phototransistor to achieve longer transmission distance. We adding the image transmission feature so that the information in form of text and image can be transfered. The prototype is build by using low-cost components and supported with desktop application as the interface. From the new prototype, the system able to send text and image data perfectly with maximum transmission distance is 98 cm. The maximum acceptance angle for transmission is 70° with maximum baud rate is 19200 bps.