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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

180834

  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
Thankyou so much!
  
alexannnn
19 Oct 2014: 09:31 AM
Is there something wrong in the program(hexfile) ? It doesn't work.
  
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Conversation

Sat Jan 31 2015, 11:17 AM
Pradeep Singh
I'm using 8051 microcontroller and want to configure HC-06 with it but I'm not able to find out what problem is occuring as my blueethooth is getting connected but no communication between blwutooth and pc/andriod phone
sachinmm
Sat Jan 31 2015, 05:23 AM
hello sir,i ask the question related to 7 segment display plz help me.
Thu Jan 29 2015, 11:24 AM
durai
I found discussion relevant to my problem (link:http://www.8051projects.net/t59199/gsm-cdma-discussion/flashing-new-firmware-in-sim900-modem.htm) but i could not find the project mentioned in that discusion
Thu Jan 29 2015, 11:21 AM
durai
Hi i am using a SIM/900A GSM modem, I want to send email with an attachement using a microcontroller but when i try to use AT_Email commands it gives me error,I think modem doesnot support those commands,is there any other way to send mail using that modem??
ajay_bhargav
Thu Jan 29 2015, 06:54 AM
@gaurav, please mail me message you're trying to post.
ExperimenterUK
Thu Jan 29 2015, 01:17 AM
bhagyesh.bhavasar/gaurav.k I can post with Firefox. Can you try other browsers ?
naqirizvi
Wed Jan 28 2015, 08:08 AM
the web theme is too much buggy and heavy , admin please change it to simple theme, so that user can browse quickly
naqirizvi
Wed Jan 28 2015, 08:07 AM
some one please share software name or ebooks related to avr
bhagyesh.bhavasar
Tue Jan 27 2015, 11:06 AM
i want to share my project but there is problem occurred during postng
bhagyesh.bhavasar
Tue Jan 27 2015, 05:58 AM
@ExperimentalUK i have used that purple button but same as previous it takes me to blank page

Downloads

Comments

sachinmm
Thu Jan 29 2015, 07:09 AM
nawfel
Sat Jan 17 2015, 07:27 AM
Rohi123
Sat Jan 10 2015, 11:00 AM
safakarici
Fri Jan 09 2015, 08:55 PM
Nikita_Pinjare
Thu Jan 08 2015, 03:10 PM
mayank058
Wed Jan 07 2015, 05:43 AM
Overeating
Tue Jan 06 2015, 05:56 AM
trancebreaker11
Sun Jan 04 2015, 07:42 AM

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Forum Activity
sankalp_s Avatar
Posted By sankalp_s
Fri Jan 30 2015, 05:40 PM
you need to remove jump statements from main progr...
mayank058 Avatar
Posted By mayank058
Fri Jan 30 2015, 07:02 AM
dear sir, please tell me how to do t...
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Jan 29 2015, 10:41 PM
T he P89V51RD2 P1.5, P1.6, P1.7 has extra curren...
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Jan 29 2015, 06:45 PM
@naqirizviAs you already have a thread running I t...
naqirizvi Avatar
Posted By naqirizvi
Thu Jan 29 2015, 02:11 PM
Circuit diagram i am following i am not sure is it...
naqirizvi Avatar
Posted By naqirizvi
Thu Jan 29 2015, 02:11 PM
Circuit diagram i am following i am not sure is it...
naqirizvi Avatar
Posted By naqirizvi
Thu Jan 29 2015, 02:11 PM
Circuit diagram i am following i am not sure is it...
naqirizvi Avatar
Posted By naqirizvi
Thu Jan 29 2015, 01:50 PM
Hi,I am new to programming got some issues in RFID...
sachinmm Avatar
Posted By sachinmm
Thu Jan 29 2015, 07:21 AM
hello sir, plz tell me the circuit diagram interfa...
ajay_bhargav Avatar
Posted By ajay_bhargav
Thu Jan 29 2015, 06:28 AM
Moreover I see the segment Anode is connected via ...