Electronic switching matrix

The aim of the work is to design a system that provide each user to choose desired the source in a multi-user and multi-source environment like voice source, video source, printer and etc. and use it. For this purpose, an electronic switching matrix is designed together with the multiple voice source application. A radio box with nine voice source (radio) is connected to this matrix and four different users are provided to choose these radios. RF connection method is used between users and switching matrix, so users can remote control the matrix. By receiving and executing RF commands, microcontrollers control the relaying cards in order to provide the connection necessary to support users demands. PIC 16F84 of Microchip company is used and the necessary assembly language software is coded. The system is executed with success and the users are provided to choose the desired channel from the nine voice channel. The design can be enchanced and expanded for different number of users or sources, depanding on the usage purpose and place.