Control Of Appliance By SMS Using Pic18f4550 Microcontroller

Abstract

This research is concerned to design electronics circuit which control the appliance using SMS messages by sending with mobile GSM wave to circuits which contain the RX circuit and to convert this wave to input of microcontroller type(PIC18F4550) which programmed by MICRO C language and send to input of array of transistors circuit to operate the relays that connected with the appliance and this messages are written in code received by microcontroller for each address of appliance .The microcontroller programmed to read this messages which stored in Inbox of SIM Card after reading the message the program clear the Inbox contain to stay the inbox empty standing to receive the another message .This system used in wide range to control the home appliance and many embedded control application by using the technology of SMS.