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PROJECT DESCRIPTION

The main objective of this project is to provide a security system with a provision to change the password by an authorized person only. This proposed system provides a user-friendly security system for organizations and homes. This system is password based and allows only authorized person to access it with the password.

The system is fully controlled by an 8-bit microcontroller of the 8051 family. A password is stored in an EEPROM interfaced to the microcontroller which is possible to be changed anytime unlike a fixed password burnt permanently to the microcontroller.

A keypad is used to enter the password and a relay is interfaced to the microcontroller using a relay driver to lock or unlock the electric door, which is indicated by the lamp in the project. Any wrong attempt to open the door (by entering a wrong password) prompts an alert indicated by another lamp.

Furthermore, this project can be enhanced by interfacing a GSM modem to the device so that when a wrong password is entered, an alert SMS will be sent to the concerned authority.

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
Authorized Access with User Defined Password
Hardware Requirements
  • 8051 series Microcontroller
  • Relay Driver IC
  • EEPROM
  • Relay
  • Keypad
  • Resistors
  • Capacitors
  • LED
  • Diodes
  • Transformer
  • Voltage Regulator
  • Crystal
  • Lamps
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:  What is the role of EEPROM?
A:  EEPROM is used for data restoration or backup even after power interruption.
Q:  How is the password set?
A:  Operation procedure is provided with the kit and should be followed to set the password.
Q:  What is the purpose of the lamps shown?
A:  One lamp is used to indicate for authorized entry and other lamp is used to indicate for unauthorized entry.
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Plot No. 105, 3rd Floor,
Liberty Plaza, Himayathnagar,
Hyderabad - 500029,
Telangana, India
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