Abstract :
In this work, a pair of LED to LED transceivers had been designed and implemented for bi directional communication between two PCs. Previous work in LED to LED communication relies on software to utilize LED as a light receiver. The problem of such method lies in the difficulty of synchronizing transmitter and receiver. In this work, a fully hardware based solution is implemented using low current Op Amp. The proposed method yields higher baud rate and requires no software overhead microcontroller less . It is also concluded that the maximum communicable distance of the link is inversely proportional with the baud rate. Shaina Suresh, Roger Sim | Dr. Veeraiyah Thangasamy | Vinukumar Luckose | Dr Rekha Labade "Design and Implementation of Bi-Directional Wireless Communication Based on Low-Power LED-to-LED Link" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Special Issue | International Conference on Advanced Engineering and Information Technology , November 2018, URL: https://www.ijtsrd.com/papers/ijtsrd19145.pdf Paper URL: https://www.ijtsrd.com/computer-science/computer-network/19145/design-and-implementation-of-bi-directional-wireless-communication-based-on-low-power-led-to-led-link/shaina-suresh-roger-sim
Keyword :
LED-to-LED communication; Visible light communication; Baud rate; Maximum communicable distance; On-Off Keying; Operational amplifier; Comparator; Transition time; Gain-Bandwidth Product; Baud- Distance Product