(2 customer reviews)



As name suggested, Home Automation using Cell Phone is going to be used for control the home appliances. It enables you to control home appliance ON or OFF like Bulbs, Fan, and Television etc with the pressing of your mobile key from anywhere. There are no needs of specific remote for this, user can use any Cell Phone to control these appliances. So if you forgot to switch OFF the lights or other appliances while going out, it helps you to turn OFF the appliance with your cell phone. You only have to call on a particular number and press mobile key according to your wishes to ON or OFF, there is unique key number assigned for particular device. Thus, your cell phone works as remote control for your home appliances. There is another mobile phone connected in the circuit through headphone which receives the ‘Dual Tone Multiple frequency (DTMF) tone by headphone and proceeds it to the circuit attach with it. Now micro – controller send the proper commands to the ULN 2003 IC which controls the relays. These relays control switching of devices connected to it, thus devices turn ON or OFF with help of these relay.
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Our Home Appliances Control using Mobile is basically controlled by micro – controller AT89S52 (8051 family). The mobile connected to the circuit receive DTMF tone by user call and sends it to DTMF decoder IC MT8870 through headphone. This IC decodes signal into binary and after then forward it to the controller. Controller checks it with saved data with helps in understanding that which devices have to control. After then controller sends commands to the ULN2003. The ULN2003 IC, Relay Driver IC, connected in between micro – controller and relays. Thus, each relay receives signal from this IC and be ON or OFF according to the commands. Along which these relay the devices also control, each devices has a particular relay as switch. Thus, our Home appliances Using Cell Phone control your devices switching without any error. This system is economically cheap and easy to apply.


1. High sensitive
2. Works with any Cell phone from anywhere
3. Low cost and reliable circuit
4. Coverage distance up to where mobile operator is available. i.e. all over world.


1. Home appliances control
2. Hotel lights/ fans Control
3. Shops and Showrooms appliances control
4. Industrial appliances

How To Choose Best kit for You

1. Professional Kit

this kit for Professional person who knows project soldering, testing, assembling and some basics knowledge. In this kit our role is to provide PCB fabrication, microcontroller programming (If any), Project designing and documentation. Our responsibility is limited to according to checklist facilities only. User is responsible for further process like soldering, assembling etc to complete the project. (Do it yourself 70%)

2. Assembled kit

this kit is fully assembled and tested by us for final running. It has prepared for instant requirements and Ready to Use

3. Combo Kit

there are two separate kits, one fully assembled and tested kit. The second one is a Designed & Drilled Copper PCB with soldering components except a set of detachable components which is already attached in first kit (assembled). User can complete the second kit according to assembly procedure given by us in their college practical lab. If user could not complete their project then he/she can use our first kit or make correction by analyzing and comparing with first kit. (Do it yourself 50%)

4. Learning Kit

this kit is fully Do it yourself under our live guidance & support at our workshop or online video calling. We guide how can component has to be place on PCB and solder to it. We continuously checks and guide if any mistaken by user step by step till completion of project. And after successfully completion of project we certify to student that he/she complete their project successfully in our guidance and also provides our company certificate for this. (Do it yourself 90%)

2 reviews for Home automation using cell phone via DTMF

  1. deep


  2. DEVKUMAR (verified owner)

    Osem. Really nice Components used. Also of good quality.
    And really advanced project i bought in convenient price.
    Thanks a lot sir and Man both.

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