Remote control of smart household based on DTM

More and more smart systems have been used in modern household. This article mainly introduces the smart household control system realization procedure based on DTMF remote transmission. The system used AVR SCM to dispose and exchange information. We realized household appliances remote control by communication through mobile telephone and GSM card of the system host computer TC35i by DTMF signals. This method has a lot of advantage, such as easy operation, good practicability and wide appliance range etc. This article particularly narrated main functions and realization of hardware and software of the system.

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