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Design and Implementation of Long Distance Visible Light Communication System Based on Embedded ARM Platform

In this paper, a long-distance optical communication system based on Embedded ARM platform is presented and demonstrated. The system is composed of two parts: LED/PD application terminal and its drive circuit. Terminal has a 4-inch touch screen with interactive interface based on Android system. The performance of data transfer in our prototype shows up to 50 m range at the transmission rate of 50kbps. This system is supposed to reach the distance of 2km or higher in the coming months.