Basic Level     Skills: Not specified    
Author
Author email
[email protected]

Description

Combination Lock with LCD and Keypad using pic16f628A:

A Brief Description:

This project is written in C language. The basic user lock is of 2 Digits.
The input is taken from a 4x3 Keypad (please see the schematic for more information) and Display the user input on a 2x16 LCD. A pin is assigned as output for activating and deactivating the lock. For demonstration I have connected an LED to that pin.


How combination lock works:

1. Turn switch on (5V DC voltage power supply)
2. A message name “Combination Lock” will display on LCD at first row,
3. Second row display “Enter Pass:” it asked you to enter password for open doors.
4. In this lock design it has three doors. These are the code locks to open doors “door1=05, door2=28, door3=82, door1 & door2 = 33”.
5. If you entered one of the codes in step 4 then press enter key that door will open. For example, you enter 05 for door 1 it’s then open and close door 1 after 5 seconds.
6. If codes you entered are not matched one of the code in step 4 then led door is not turn on.
7. If your first attempt failed the message “invalid code’ display on screen.
8. Then you pressed any key to clear and you can try for second attempt.

After you have reached three attempts but you have not entered correct password. Next Any Keys press alarm will activate for 5 seconds.

Using the Keypad:
Keypad has 12 keys (4x3) starting from 1,2,3,4,5,6,7,8,9,*,0,# (please see the schematic for layout). Numeric keys are used for entering numbers. '*' is used as the Cancel key and '#' is used as the Enter key.

Download File Information:

Flowchart.jpg
Combination_lock.c
Diagram bitmap.bmp
Lock_EBES_MODEL.DSN ( Using Proteus to run this file)
Combination_Lock.hex
Tags PIC digital lockpic microcontroller combination lockcombination lock projectPIC microcontroller digital lockdigital lock using pic micro
  Filesize

70.27 kB

  Downloads

65619

  Rating
 

Comments

hasitha
21 Jul 2014: 19:30 PM
what compiler use to write this project codes? How can i edit this code?
  
(Required; Min length 5)
(Required; will not be displayed)

Conversation

Sat May 15 2021, 11:47 AM
Derek Wolcott
Geometric Energy Corporation announced the dogecoin-funded mission on Sunday, with DOGE-1 representing a 40 kilogram cube satellite flying as a payload on a Falcon 9 rocket.
Thu May 13 2021, 07:18 PM
Rufus
Pretty section of content. I just stumbled upon your weblog and in accession capital to assert that I get actually enjoyed account your blog posts. Any way I will be subscribing to your augment and even I achievement you access consistently quickly. https://mkfinstitute.com Trisha Trisha
Wed May 12 2021, 01:23 PM
Jed Roan
Now you can promote your site all over the internet for FREE: http://www3.listofsitesthatacceptfreeads.club
Wed May 12 2021, 08:20 AM
Edgardo
If some one wants to be updated with most recent technologies afterward he must be visit this web page and be up to date every day. annual credit report https://creditscoresetf.com
Wed May 12 2021, 06:11 AM
Laurinda
Great website. A lot of useful information here. I'm sending it to some pals ans also sharing in delicious. And of course, thanks on your effort! annual credit report https://creditscorecheckn.com

Downloads

Comments

Mirza123
Thu Jun 25 2020, 03:46 PM
eunicelove124
Mon Jun 22 2020, 03:03 PM
cerouno
Tue Jun 16 2020, 05:10 PM
Marce
Sat Jun 13 2020, 09:43 PM
Davidthils
Thu May 21 2020, 12:44 PM
Jakeror
Thu May 21 2020, 01:28 AM
motorCar
Wed May 20 2020, 07:05 PM
Vordrync
Wed May 20 2020, 11:52 AM

Online

Guests: 130, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 38215
Newest member: Mirza123