Remote Control Of The Household Appliance Based On GSM & MCU

GSM (Global System for Mobile communication) is a popular mobile communication system, which is more mature, and widely used in mobile communication. SMS (Short Message Service), as an important service of GSM, has being widely used in Remote Control. During the past several years, system operators and system developers have been paying more and more attention to the usage of SMS. This paper designs a remote control component based on SMS.SMS makes use of standard AT command set of GSM. Here we are interested in several AT commands of SMS used in the program. This paper completely implements the standard PDU encoding and decoding functions, and will give a detailed description later about that.The purpose of this paper is to design a component, which can turn on and turn off the household appliance by SMS from the host's mobile phone. The hardware of the component consists of a GSM module named TC35i, a MCU named atmegal6, and a SSR named LR32053. These objections are given a detailed description in the hardware designation.In software, the component is a system called a foreground/background system which consists of the main program, ISR of UART, and ISR of timerO. ISR of UART and ISR of Timer0 work together to receive SMS from TC35i. The main program decodes SMS received from TC35i and control the home appliance according to the command included in SMS. The most compelling problems facing the Remote Control are data receiving of UART and PDU coding/decoding. These problems will be given a detailed description in the software designation.More attention is paid to the designation of the software and the hardware of the component for nice performance and security. It is friendly with you to control your home appliance via this component. In this paper we use the microwave oven as an objection and successfully implement the ON/OFF control on it.