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DTMF Home Automation System This project is about controlling of home appliances using DTMF (Dual Tone Multi...

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Electrical Engineering

DTMF Home Automation System

This project is about controlling of home appliances using DTMF(Dual Tone Multi Frequency) technology. These appliances includeslights, fans, central heating, etc. A control unit will be requiredto encode the 4bit binary code from the DTMF decoder to link with16 appliances or operations. However anyone can control yourappliances if they know the cell number of the phone connected tothe module. Furthermore, the number of appliances is limited to 16,which is the number of DTMF tones. These problems can be solved byusing a controller at both transmit and receive end, and introducea digital code. Now it will be possible to use more than one toneper command. For example, using 2 tones will give 16x16 =256commands. A duplex operation can now be possible.

I need help Designing the DTMF Home Automation System using anArduino.

I need the source code and circuit

Set up and demonstrate the operation of the DTMF controlledautomation system, using a designed control unit.

Answer & Explanation Solved by verified expert
3.6 Ratings (286 Votes)
int xyztrsint a3int b4int c5int d6void setup pinModeaINPUT pinModebINPUT pinModecINPUT pinModedINPUT    See Answer
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