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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:


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2.43 MB

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178101

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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.
  
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Conversation

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
Mon Sep 08 2014, 12:14 PM
fameem
water changing in fish tank automatically using microcontoller with timer. send idea to me
dexter_a
Sat Sep 06 2014, 03:09 PM
hello guys
Sat Sep 06 2014, 02:10 PM
munaxa
plx guide me
Sat Sep 06 2014, 02:09 PM
munaxa
hi i want to buy plx guie me
ajay_bhargav
Sat Sep 06 2014, 07:10 AM
@Ben, Its hard to undrstand the context like this. If you can post in forum with some example code we might answer you better.

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Comments

engwas
Tue Sep 30 2014, 12:42 PM
zsachico
Tue Sep 30 2014, 04:18 AM
evergreencare
Sat Sep 27 2014, 07:39 AM
Agnoor
Thu Sep 25 2014, 06:39 AM
fouadzeyad
Tue Sep 23 2014, 09:04 AM
deepbhadani
Fri Sep 19 2014, 05:08 PM
desaiakshay92
Fri Sep 19 2014, 04:45 AM
Fiddu
Thu Sep 18 2014, 06:28 AM

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kirangowle Avatar
Posted By kirangowle
Sat Sep 20 2014, 04:35 AM
Hello All,I want to connect normal speaker (as a s...
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Posted By ajay_bhargav
Wed Sep 17 2014, 04:59 AM
I think its important to list out the features of ...
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Posted By ajay_bhargav
Wed Sep 17 2014, 04:45 AM
you need to put a wait condition in ISR till the s...
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Posted By akshar
Mon Sep 15 2014, 08:41 AM
sir,i used microcontroller 89v51rd2 in circuit. No...
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i am programming interrupt 0 using 8051my task is....
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There may not be an exact equivalent .You will hav...
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Sir, Good Morning,Thank you for making me a member...
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Posted By ajay_bhargav
Thu Sep 11 2014, 04:52 AM
which compiler are you using? I suggest XC8 with M...
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Thu Sep 11 2014, 04:49 AM
I always prefer Olimex Dev boards when it comes to...
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Thu Sep 11 2014, 04:44 AM
master will always lower down the Chip select... s...