Remote control using telephone by KT3170| Circuit Project

Here is a teleremote circuit which enables switching on and off of appliances through telephone lines. It can be used to switch appliances from any distance, overcoming the limited range of infrared and radio remote controls. The circuit described here can be used to switch up to nine appliances (corresponding to the digits 1 through 9 of the telephone key-pad). The DTMF signals on telephone instrument are used as control signals.

Read More Source:http://www.members.tripod.com/electronicsworld/remotecontrolsimages/remotecontrolsckt2.html
Thank you.

This entry was posted on Friday, March 7th, 2008 at 10:44 am and is filed under Electronic Control, Telephone.

Circuit diagrams and schematics - Electronic projects

Remote control using telephone by KT3170 (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

Remote control using telephone by KT3170