Powered by Blogger.

Monday 6 July 2015

Block Diagram to Control Devices from Remote area through Mobile Phone

by realfinetime  |  in MT8870D at  07:17

We had seen devices which are controlled using mobile phone from a remote area. Remote area means, from anywhere in the world. It will be interesting, if you can control your lamp or fan from another place or country by pressing different keys on mobile phone. Here, we will see the block diagram and video demonstration of a simple circuit which can be used to control your household devices from a remote area. Block Diagram of system is given below.
  • Take two mobile phones and connect one phone (receiver phone) to "key identification and controlling circuit" through an audio jack.
  • Take second mobile phone (controller phone) and call to the receiver phone.
  • When the receiver phone rings, accept call.
  • Now, call will be in progress between controller and receiver mobile phones. Take the keypad in controller mobile phone and press numbers. Number pressed in the controller phone will be read by the "key identification and controlling circuit". Controlling device can be controlled as per your wish using "key identification and controlling circuit" based on the number read from controller phone. "Key identification and controlling circuit" is given in my next blog.

Watch the video demonstration here.


  1. I wanted to thank you for this excellent read. Thank you for taking time to know more about in this subject as we provide Cheap Phones in Ghana, for more info visit our site

  2. Thanks for sharing such informative stuff. we provide Earphones Price in Kenya at affordable prices. for more info visit our website.

  3. What a nice article. I always recommend this blog.
    lg tp260
    We use AI (artificial intelligence) to help you understand what makes a product awesome and why people like it, so you can find the right stuff for you.

  4. This comment has been removed by the author.

  5. Impressive and powerful suggestion by the author of this blog are really helpful to me.
      Phone Comparison Site

  6. This comment has been removed by the author.

  7. Your blog is very valuable which you have shared here about replacement car remotes I appreciate your efforts which you have put into this article and also it is a gainful article for us. Thank you for sharing this article here.

  8.  Share great information about your blog , Blog really helpful for us .
    Invention Of Mobile Phone Reset

  9. This comment has been removed by the author.

  10. Today many homes include several pieces of electronic equipment and as such also include numerous Directv Universal Remote Codes. It can be a pain to pick up 3 or 4 remotes every time you sit down to watch the television; you may have one for the TV, one for the satellite or cable and another for the surround sound system. So wouldn't it be great if you could have just one remote that replaces them all? This article looks at rca universal remote controls, which can de-clutter your house and still give you the ability to remotely control everything you need without getting off the couch.

  11. Thanks for publishing such best knowledge with us. You are doing such a great job. This info is very helpful for everyone. Keep it up. Thanks.Read more info about welding machine

  12. I found decent information in your article. Net Packages Telenor

  13. According to researcher Gal Weizman, the flaws were found in WhatsApp Web, the browser version of the messaging platform. Weizman revealed that whatsapp web mod was vulnerable to an open-redirect flaw, which allows remote hackers to redirect victims to suspicious, arbitrary websites.

  14. It’s a really useful post for me related Robotics Training In USA. Very interesting, good job, and thanks for sharing such an informative post.



All the circuits, published in this blog is only after testing and getting proper results in my private lab. When you try these circuits, you should check the supply voltage, polarity of components, presence of childrens nearby and shorts in the circuits. This website will not be responsible for any harm happened to you or your components caused by your carelessness.

For More Electronic Tips

Proudly Powered by Blogger.