Remote control using telephone

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.
circuit

VN:F [1.2.3_620]
Rating: 2.0/10 (3 votes cast)

Related posts:

  1. Radio Remote Control using DTMF
  2. Build A One Transistor FM Radio
  3. Infrared Tracking and Remote Control
  4. Infrared Tracking and Remote Control

Categories: Electronics
14 July 2009 at 00:52 - Comments
yahya
remote control circuit using tel line
VA:F [1.2.3_620]
Rating: 0.0/5 (0 votes cast)

24 July 09 at 11:07
vinod
In the circuit dtmf ic cannot detect key press event in on hook state. So the circuit is totally wrong.
VA:F [1.2.3_620]
Rating: 0.0/5 (0 votes cast)

10 January 10 at 21:36