Multi function control system using GSM modem based SM5100B Module

ABSTRACT: This paper proposes a multi function solution, based on GSM (Global System for Mobile Communication) networks [1] for control of a motor driving circuit and LCD (Liquid Crystal Display). This system provides ideal solution for controlling the direction of motor driving within a specified range of time, two directions where controlled in addition to activated functionality with 5V. In this system, a real time data can be accessed world wide using the GSM network. The system can also be configured to control an alarm or any other electrical device via a mobile phone using SMS text messaging. The proposed system controls the motor direction from the remote location, determines the time duration the motor is in a specified direction and whenever it crosses the Cellular Shield to the SM5100B Module. The Cellular Shield will send the signal to the output PIN’s which are programmed using C language to control the motor operation. The concerned authority can control the system through his mobile phone by sending AT Commands to GSM MODEM and in turn to microcontroller. The system uses GSM technology [2] thus providing the access to the system for security and automated monitoring and control the motor operations.

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