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Description

Microcontroller Based Home Security System

Home security system is the best burglar deterrent you can have. Many people don't think about security at home until it is too late and they have become victims. The prime concern of this project is to provide total security. This microcontroller based home security with password door lock system feature can also perform day and night detection, laser beam monitoring system for windows, and magnetic monitoring for doors. Aside of providing total security, this project aims to utilize the homemade circuitry and build a low cost integrated home security system.

The system includes alarm system. Hence the security system will sound an alert when there is an attempt of break-in. The system is digital. It also incorporated a 7 segment display with a 4x3 keypad.



Home security system prototype make use of the 20pin At89c2051 microcontroller. The user is required to enter 5 digit pin to activate or deactivate the door lock security. The " # " serves as an enter key and The backspace by pressing " * " is implemented so that when the user enters a wrong password, this keys can be used to delete the previous entered pin. Windows and doors are monitored by laser beam and magnetic door sensor. If the beam and the magnetic door sensor get interrupted for a possible break-in, hence an alarm will sound and an array of light will blink.

This project is capable of light sensing using Light dependent resistor (LDR) and uses digital input output logic and analog information process. The LDR is attached to a voltage divider circuitry. By using Kirchhoff’s law the voltage obtained and which we can use to measure the level of light. As result the system will automatically trigger the lights on during night and off during day time.

Here is a working demo of the project:


  Filesize

2.43 MB

  Downloads

178578

  Rating
 

Comments

James Luther
12 Jun 2014: 16:42 PM
I downloaded the rar file but when i write hex in mcu_2 for door look in mcu(AT89C2051) it gives error while verifying."Verify failed at Byte 2 ".
But the Hex for mcu1 sensor writes and verify succesfully after programming.

Please help with the mcu_2 door lock hex
  
ajay_bhargav
13 Jun 2014: 10:40 AM
@James, can you please try with the newer hex file. Actually the hex file inside is generated from unregistered version of keil. so file does not suits well for AT89C2051.
  
senyora
15 Oct 2014: 15:33 PM
Where is the newer hex file you are talking about?
  
ajay_bhargav
15 Oct 2014: 18:19 PM
@senyora, its already updated in the zip file.
  
senyora
16 Oct 2014: 13:28 PM
[Pending Approval]
  
alexannnn
19 Oct 2014: 09:31 AM
[Pending Approval]
  
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Conversation

ajay_bhargav
Mon Oct 20 2014, 11:22 AM
@skrishna, please post in forum so we can help you better.
Tue Oct 14 2014, 01:45 PM
skrishna
how do i write an ALP equivalent 7segment display interfacing embedded c program (both 8051 microcontroller)
Sat Oct 11 2014, 06:41 PM
vaidehi
want details of seven segment LED display common cathode ( IC CD 4026)
Fri Oct 03 2014, 12:52 PM
Narsim
Rickey you inspired me a lot ... I am also planing like you ...
ExperimenterUK
Wed Oct 01 2014, 09:33 PM
We're back.. we had a bug, but posting is back to normal
ExperimenterUK
Sat Sep 13 2014, 04:34 PM
jaimin1212,Pimpalkhare Create a thread for your question
jaimin1212
Sat Sep 13 2014, 06:35 AM
i want to make self balancing robot using MPU6050 using atmega8.. please help to get data of gyro and accelerometer from this sensor through atmega8.
Thu Sep 11 2014, 01:00 PM
Sunil Pimpalkhare
Hello sir, I am trying to make Wearfin project https://www.youtube.com/watch?v=iZ6PVBvQf-g so can u help me in teaching how to built the program???
Thu Sep 11 2014, 06:21 AM
hariom panday
plz hlp me in my project
iec.naga
Tue Sep 09 2014, 05:19 AM
spi

Downloads

Comments

hiswe
Thu Oct 23 2014, 04:18 PM
pddung93
Sun Oct 19 2014, 01:56 PM
msideal
Thu Oct 16 2014, 08:48 AM
robotgirl
Tue Oct 14 2014, 06:23 PM
BRV64
Mon Oct 13 2014, 05:48 AM
menadjelia
Mon Oct 13 2014, 02:47 AM
kulbhushan
Sun Oct 12 2014, 12:20 PM
HarrySid
Fri Oct 10 2014, 05:15 AM

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Forum Activity
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Oct 24 2014, 08:55 PM
Try holding STB high all the time.You might as wel...
msideal Avatar
Posted By msideal
Fri Oct 24 2014, 07:14 PM
Assembly Language Code:.INCLUDE "M16DEF.INC" LDI R...
msideal Avatar
Posted By msideal
Fri Oct 24 2014, 07:12 PM
Hi Friends,I changed my approach and now i'm using...
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Oct 22 2014, 03:22 AM
Okay, it seems to be a simple serial connection.Th...
jona Avatar
Posted By jona
Tue Oct 21 2014, 10:29 PM
I found this slightly different data sheet on a pu...
majoka Avatar
Posted By majoka
Tue Oct 21 2014, 06:35 PM
after this Accept-language:en-us\r\n...
majoka Avatar
Posted By majoka
Tue Oct 21 2014, 06:33 PM
@ aksharAT89C51AC3 can bebut the final decision wi...
majoka Avatar
Posted By majoka
Tue Oct 21 2014, 06:29 PM
@ Okechukwubefore starting this project you should...
majoka Avatar
Posted By majoka
Tue Oct 21 2014, 06:18 PM
@ kirangowleyou have to set the microphone level a...