Home control system using DTMF module

Abstract

This project is about remotely controlling the home appliances using Dual-Tone Multi-Frequency (DTMF) signals. By generating different tone for each button, the DTMF receiver is integrated with ARUDINO microcontroller to control the home appliances that attached with a specific design circuit using TRIAC. The basic operation for this project is when a call is made, the signal auto answer received and it will transmit the instruction steps. The integration of the circuits is able to “ON” the appliances when a button is pressed. The second press of a button produces “OFF” for the appliances. This project is successfully completed and able to apply to any home appliances.