Preface FOR DTMF BASED HOME APPLIANCES
- 1. i PREFACE Engineering is not only a theoretical study but it is an implementation of all .We study for creating something new and making things more easy and useful through practical study. It is an art which can be gained with systematic study, observation and practice. In the college curriculum we usually get the theoretical knowledge of industries and a little bit of implementation knowledge that how it works? But how we prove our practical knowledge to increase the productivity or efficiency of industries? To overcome such problem we student of SHANKARA INSTITUE OF TECHNOLOGY, KUKAS, JAIPUR are supposed to make project on “DTMF BASED HOME APPLIANCES CONTROL SYSTEM”. This project is designed to control the home appliances utilizing Dual Tone Multi Frequency (DTMF) that is paired with a wireless module to provide seamless wireless control over many devices in a house. In this system we use mobile keys, each corresponding to the device that needs to be activated/deactivated. The encoder encodes the user choice and sends via a GSM transmitter. The GSM receiver receives the modulated signal and demodulates it and the user choice is determined by the DTMF decoder. Based upon this the required appliance is triggered.