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PROJECT DESCRIPTION

The main objective of this project is to lift a garage door by using a cell phone and avoiding the conventional method involving human labor for closing and opening the garage doors.

In this proposed system, an owner can call to a mobile phone interfaced to the system which in turn is connected to the garage door that can open/close the door by entering a unique password. This method is very convenient as one doesn’t have to get down of his car to open or close the door physically.

This project is based on the concept of DTMF (dual tone multi - frequency). Every numeric button on the keypad of the mobile phone generates a unique frequency when pressed. These frequencies are decoded by the DTMF decoder IC at the receiving end, which is fed to the microcontroller.

If this decoded values (password entered by the user) match with the password stored in the microcontroller, then the microcontroller initiates a mechanism to open or close the door through the motor driver interface.

Furthermore, this project can be incorporated with an EEPROM, i.e., a non-volatile memory so that the password can be changed by the owner.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Garage Door Lifting System by Cell Phone
Hardware Requirements
  • 8051 series Microcontroller
  • DTMF Decoder
  • Resistors
  • crystal
  • Capacitors
  • Diodes
  • Transformer
  • Voltage regulator
  • Motor Driver IC
  • DC Motor with sliding mechanism
Software Requirements
  • Keil compiler
  • Language: Embedded C or Assembly.
Q & A
Q:  Which microcontroller is used in this project?
A:  The microcontroller used in this project is a 40 pin IC from 8051 family.
Q:  Can one use it with landline?
A:  Yes, it can be used with landline phone to display the dialed numbers
Q:  Can it be used with mobile phones?
A:  Yes it can be used with mobile phones
Q:  What is DTMF?
A:  DTMF or Dual tone multi frequency is a signaling system which uses a combination of two frequency tones to represent a key pressed on the keyboard of any cell phone.
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Edgefx Technologies Pvt. Ltd.,
Plot No. 105, 3rd Floor,
Liberty Plaza, Himayathnagar,
Hyderabad - 500029,
Telangana, India
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