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RF Based Wireless Voice Controlled

Household device activation and control

system

This project is designed to control the home appliances

through voice (on/off control as dictated !y the person "#$itch on

Fan%& #$itch 'ff ight% etc) The Voice Recognition involves

H*+,,- .C $hich is dedicated to process the voice inputs) The

voice inputs is processed !y H*+,,- .C and the outputs are given

through Wireless using an ncoder)

0nother unit is used to decode the $ireless inputs and send it

to the appropriate devices for controlling)

Master Controller:

*00#TCH&12) Rangarajapuram main road&(3ear #B. Ban4

5odam!a44am&Chennai67,,,+8& http9//$$$)maastechindia)com

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0 pic *icro controller $ill act as a master controller for the

s$itching of devices)

Voice Controller:

0 voice said in front of the mic is converted to te:t !y the

Voice Recognition .C H*+,,- and is fed as a input to the

controller& so the controller reacts to it)

Software Driver in Hitech C

This is a soft$are tool used to control the angular position

i)e)& to send specified pulses $ith controlled timing to vary the

speed as $hen and $here re;uired)

*00#TCH&12) Rangarajapuram main road&(3ear #B. Ban4

5odam!a44am&Chennai67,,,+8& http9//$$$)maastechindia)com

8/18/2019 Wireless Voice Controlled Household Device Activation and Control System

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Bloc4

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Transmitter Side:

Receiver Side:

 

*00#TCH&12) Rangarajapuram main road&(3ear #B. Ban4

5odam!a44am&Chennai67,,,+8& http9//$$$)maastechindia)com

=>+V ?o$er #upplyRF Receiver (@>A*H

*icrocontroller ?.C>7F1--

=AV ?o$er #upply

ncoder HT>+

RF Transmitter

(@>A*H

=>+V ?o$er #upply

H*+,,- Board $ith 5eypad

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*00#TCH&12) Rangarajapuram main road&(3ear #B. Ban4

5odam!a44am&Chennai67,,,+8& http9//$$$)maastechindia)com

*icrocontroller ?.C>7F1--

=AV ?o$er #upply

Relay Relay+

Fanight

Relay> Relay+

TV 0C

ncoder HT>+