1. Voice Controlled Complete Protection System
for Home Appliances
This project is used to automate the house. And the same can be
applied to an industry also. This project has a provision for Switching of
house hold devices like Fan, Tube lights, Televisions etc through telephone
from anywhere in the House.
This is achieved with the use of an Embedded Micro controller and a
Voice Play back device .the hand held device has a keypad, which is used to
switch on or switch off a device.
Applications
 Automation in home/industries.
 Automatic switching applications.
 Machinery movement control.
 Automatic processing.
Features
 Advanced pic micro controller based operation.
 Number of devices can increased.
89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24
PL VISIT www.maastechindia.com,mobile:098402 34766

2. Home automation construction diagramme:
89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24
PL VISIT www.maastechindia.com,mobile:098402 34766

3. Block diagram
+5V
Power HM 2007 MIC
Supply
6264 RAM Key Pad
+12V Power
74LS373 Supply
Flip Flop
Micro
Controller
PIC16F877
Relay Driver
RL1 RL2 RL3 RL4
L1 L2 L3 L4
89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24
PL VISIT www.maastechindia.com,mobile:098402 34766

4. PIC Micro controller Board
This is the board which contains PIC Micro controller Chip as well as
the clock Circuitry, Reset Circuit and Power Supply for the Micro
Controller.
Relay Driver
It is used to control the relay.
Key Pad
It used to control the device.
Power supply
It provides the power supply to the total unit.
Voice Controller:
A voice said in front of the mic is converted to text by the Voice
Recognition IC HM2007 and is fed as a input to the controller, so the
controller reacts to it.
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=5937
116
89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24
PL VISIT www.maastechindia.com,mobile:098402 34766