Desenvolvimento de um sistema de comunicação wireless com Matlab/Simulink usando microcontrolador de 8 bits da família HCS08.

Abstract

This work consists in the implementation of a system of wireless communication between a Freescale® HCS08 microcontroller and a servomotor, with Matlab/Simulink being used to control the system. The purpose is to control remotely the speed of the engine. The evaluation board used is DEMOQE128, and a radio frequency communicator module for wireless, which uses serial communication following the RS232 protocol. The measurement of the angular position of the servomotor is made by an encoder in order to obtain the angular velocity. The microcontroller controls the current of the servomotor through the duty cycle of a PWM signal. To develop a graphical interface and perform the control the Simulink real-time software, which facilitate the exchange of the controller without the need to reprogram the microcontroller system used. The result is a completed system where through Matlab/Simulink you can control the motor’s speed remotely.