FM RADIO BROADCASTING USING RASPBERRY PI GPIO

Computer Engineering

Radio broadcasting is a revolutionary technology which changed the way of world communicated. It enabled large scale broadcasting, in a world where information spread slowly only through means of newspaper. In today’s world, this low cost medium is specifically suited to reach communities and vulnerable people. Our project uses a raspberry pi to explore this old technology. We use memory mapping and the hardware provided to generate spread spectrum in raspberry pi to output FM radio energy. Use of low level language is being used for memory mapping and it is encapsulated with higher level language, increasing the portability of the project. The additional layer of abstraction makes it more convenient for the general user to broadcast on the FM band and makes it a smart radio. Use of web server allows the broadcast to be controlled through HTTP and a simple android app makes it easier to navigate. This paper first discusses the technical aspects of the projects. It then explores the possibilities and legalities of broadcasting on FM band. Another small problem that we are simultaneously looking at is to synchronize music on end devices.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.