HOME AUTOMATION USING PHONE (DTMF TOUCH-TONE)

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vinodquilon

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Here I am presenting my final mini-project setup.
See the attachment in this forum or the link...

https://www.scribd.com/doc/29233455

I express my sincere thanks to all forum members for there great support
without whom this project wouldn't have been a reality.

Still I am welcoming new ideas to improve my final circuit.
 

7805 labels are reversed, I will clear it.
at board 3 there should be 4.7K replaced with 470 Ohm and a 1K preceding all LED s.
 
teleswitch_DTMF.Finally Revealed...

Take a look at my attachment.
 

Report attached

Report attached....
 

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  • dtmf_teleswitch_finalReport.pdf
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