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PROJECT DESCRIPTION

The project works on the principle of DTMF tone command, which is received from any phone to remotely switch any electrical load such as agricultural pump, domestic and industrial loads, etc.

In industries, the loads are spread over a large area and thus, operating these loads is a very tiresome and difficult task. In agricultural fields also, pumps and other loads are connected over a large area and hence, it is difficult for the farmer to operate all the loads and similarly for house hold loads. Keeping these problems in mind, the proposed system has been designed, which uses DTMF technology to control the loads remotely.

A cell phone is interfaced to a DTMF decoder in the system from its audio output socket for receiving tone commands. The receiving cell phone codes are converted into digital commands by using a DTMF Decoder which  identifies the frequency of the key and converts that frequency to its equivalent digital code, which is then fed to a microcontroller (PIC family). As per the commands sent from the sender’s mobile, the microcontroller  sends signals through a buffer to actuate  respective loads by turning  relays ON/OFF.

These relays are actuated by a relay-driver IC interfaced to the microcontroller. Furthermore, this project can be enhanced by using a GSM modem, wherein the loads can be controlled by sending an SMS. This will eliminate the need of answering the call for the system to work.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Cell Phone Controlled Home Appliance Switching by PIC microcontroller
Hardware Requirements
  • PIC16F8 series Microcontroller
  • Transformer
  • DTMF Decoder
  • Relays
  • Relay Driver IC
  • Inverter IC
  • Voltage Regulator
  • Crystal
  • Diodes
  • Resistors
  • Capacitors
  • Lamps.
Software Requirements
  • Kiel compiler
  • Languages: Embedded C or Assembly
READ WHAT OTHERS HAVE SAID
Average Rating
 4/5
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Showing 1 of 1 reviews
udhaya sankari.s, kallakurichi,villupuram on 4th July, 2015, 11:09 AM

i feel it is very useful for my father who is a farmer,since the distance between our home and field is large

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Edgefx Technologies Pvt. Ltd.,
Plot No. 105, 3rd Floor,
Liberty Plaza, Himayathnagar,
Hyderabad - 500029,
Telangana, India
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