Micro Controlled Based Switching Performance over Home Appliances using DTMF

The concept deals with a control which permit the simple use of a mobile phones to control the appliances the devices with protection. A user will send DTMF (Dual Tone Multi Frequency) tone or multi frequency signal to the home devices and micro controller with in a GSM mobile . To access the management unit, the user ought to send AN authentication code (DTMF) together with the required command to perform on the devices. A mobile connected to the microcontroller which may answer mechanically works because the DTMF receiver. PIC16F628A microcontroller was programmed and it will management (ON/OFF) eight devices. the various devices is allotted by the microcontroller in step with users ..DTMFDual-tone multi-frequency signalling (DTMF) is used for telecommunication signalling over analog telephone lines in the voice-frequency band between telephone handsets and other communications devices and the switching centre. The version of DTMF that is used in push-button telephones for tone dialling is known Touch-Tone.