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PROJECT DESCRIPTION

The aim of this project is to develop a home automation system that can be controlled remotely using a landline connection. The home automation is one of the most emerging trends in modernization of home appliance control.  Presently, conventional wall switches are located in different parts of the house and one has to physically go near them and press them to turn the loads on/off. It becomes very difficult for the elderly or physically handicapped people to do so

This system is designed to provide control of home appliances through landline by dialing the designated number for the particular load. Dialing can be done from the home phone or a call made to the home number from outside. This system is designed without engaging a programmable microcontroller but is based on digital logic using DTMF technology (Dual Tone multiple frequency) which receives the command from the landline phone to develop digital output.

This digital signal is further processed to actuate switching mechanism through relay driver to turn on/off the loads/appliances. It can be used to switch appliances from anywhere, overcoming the limited range of other infrared and radio frequency type controls. This proposed system gives a new direction to the development of home automation. 

 The concept of this system can be extended in future by giving an acknowledgement message to the user by system on the status of loads by using GSM modem.

PROJECT HIGHLIGHTS
Non-Microcontroller Project.
Digital Home Automation.
Extensive audio-visuals available.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm.
All-inclusive solution kit.
Easy to use, Self-explanatory kit.
BLOCK DIAGRAM
Hardware Requirements
  • Transformer
  • diodes
  • capacitor
  • Voltage regulator
  • resistor
  • Inverter
  • Flip flops
  • De-multiplexer
  • Relay
  • 555 Timer
  • DTMF decoder
  • Opto-isolator
Software Requirements
    None
Q & A
Q:  Can this project be used with a landline?
A:  Yes it can be used with landline phone to control the loads.
Q:  Can be used with mobile phones?
A:  Yes it can be done
Q:  What is DTMF?
A:  DTMF or Dual tone multi frequency is a signaling system which uses a combination of two frequency tones to represent a key pressed on the keyboard of any cell phone.
Q:  What is the DTMF IC is used?
A:  IC 8870 is the DTMF IC used.
READ WHAT OTHERS HAVE SAID
Average Rating
 5/5
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Showing 1 of 1 reviews
sowmya, on 18th November, 2012, 12:30 AM

The audio visuals provided by Edgefx technologies helped my team a lot in completing the project. We also got some good knowledge on electronics with the material provided by Edgefx Team. Thanks.

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