DESIGN AND CONSTRUCTION OF A MICROCONTROLLER BASED GSM SWITCHING CONTROL SYSTEM

Abstract

This project is about taking home automation system to the next level by the use of mobile phones to actually control appliances a great distance away via the mobile network (MTN, ZAIN, and GLO) i.e. provided there is GSM coverage between the operator and the equipment to be controlled. The construction makes use of a micro controller and a digital tone converter which are interfaced to a computer system and a phone, when the phone number of the phone connected to the computer is dialed and is ringing the computer will automatically pick up the phone and by pressing digit keys like 1, 2, 3,*, # etc gives a predetelmined command to the computer to control the equipment attached to it (I.e. to turn on or switch off). The system has a feedback to let the person controlling the equipment if the task has been carried out successfully or not.