Home automation using phone (dtmf touch-tone)

vinodquilon

Member

• Mar 31, 2010

• #1

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

HOME AUTOMATION USING PHONE (DTMF TOUCH-TONE)

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.

 

Attachments

• DTMF_TouchTone..pdf

  297 KB · Views: 946

G

gerty

Member

• Mar 31, 2010

• #2

Board 4 ,power supply, you have the voltage regulator labled backwards.

 

vinodquilon

Member

• Mar 31, 2010

• #3

gerty said:

Board 4 ,power supply, you have the voltage regulator labled backwards.

Click to expand...

OK, I will clear it.

 

vinodquilon

Member

• Mar 31, 2010

• #4

at board 3 there should be 4.7K replaced with 470 Ohm and a 1K preceding all LED s.

 

vinodquilon

Member

• Apr 1, 2010

• #5

Here is the modified one...

Here is the modified one...

HOME AUTOMATION USING PHONE (DTMF TOUCH-TONE)-modified version

 

Attachments

• home_automation_&#11.pdf

  443.9 KB · Views: 652

vinodquilon

Member

• Jun 13, 2010

• #6

teleswitch_DTMF.Finally Revealed...

Take a look at my attachment.

 

Attachments

• teleswitch_DTMF..jpg

  1.1 MB · Views: 475

vinodquilon

Member

• Sep 16, 2010

• #7

Report attached

Report attached...

 

Attachments

• dtmf_teleswitch_finalReport.pdf

  802.3 KB · Views: 936