Sistema de aquisição e transmissão de dados a microcontrolador para supervisão de telefones públicos.

Abstract

The electromechanical exchanges switchings don't have efficient means of supervision of the public telephones connected to them. In this work is show the development of the systems of supervision of public telephones and of aid to the development of projects based on microcontroler Intel 8031. The system of supervision is subdivided in one or more modules of data acquisition and in a control program. It was set up and tested a module prototype and an man-machine to the program.