DTMF Dowbt...

M

mytech

New Member

• Jan 18, 2008

• #21

Yes i hav both the chips.. Is there any better IC than those?..
Also i need encrypted rf transmission technique..

 

blueroomelectronics

Well-Known Member

• Jan 18, 2008

• #22

Sure plenty of better ways to do it. But since you've got those ICs you might as well try to use them. Good luck.

 

S

steev

New Member

• Jan 20, 2008

• #23

https://ashishrd.blogspot.com/2007/07/cell-phone-controlled-door-latch.html

 

blueroomelectronics

Well-Known Member

• Jan 20, 2008

• #24

steev said:

https://ashishrd.blogspot.com/2007/07/cell-phone-controlled-door-latch.html

Click to expand...

Didn't know it was so cheap to leave a cell phone connected to your door.
So anyone who knows the phone number could open the door?

 

S

steev

New Member

• Jan 21, 2008

• #25

well i planned to use it for some device control etc.not for security stuff.

i build it yesterday,but it dosen't worked.don't know why.
that circuit he got is meant for another chip.
**broken link removed**
but he used CM8870 instead.is it ok?
shld i do some changes in the circuit?

 

K

kingssk

New Member

• Mar 8, 2008

• #26

i am studying BE(EEE) i like to study embedded system which is the best center at coimbatore?send to email-ssk.saravanan08@gmail.com