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Author email
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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

64262

  Rating
 

Comments

hasitha
21 Jul 2014: 19:30 PM
what compiler use to write this project codes? How can i edit this code?
  
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Conversation

poojab51296
Sun Aug 20 2017, 10:23 AM
i am intending to interface sd card with STM32F4 and want to write a file in sd card using SPI protocol but using HAL only. Can anyone help me PLEASE!!!!
poojab51296
Sun Aug 20 2017, 10:22 AM
hello
rawat742
Fri Aug 18 2017, 11:37 AM
hi @ angel patel i will attach a file i hope it will be helpfull for you
ExperimenterUK
Mon Aug 14 2017, 09:57 PM
@ angel patel... just log in and post your problem
Mon Aug 14 2017, 01:45 PM
angel patel
hey any one help to make the led scrolling display
desuza6
Sat Jul 29 2017, 07:09 AM
I see the code for step motor h l 298 to rotate 45 degree, but all delay time, if I want to input sensor to h the pulses to stepmotor
rammichael
Thu Jul 27 2017, 12:05 PM
okay fine
ExperimenterUK
Wed Jul 26 2017, 07:51 PM
Please post questions in the forum, the chat box is for chat
msd007
Wed Jul 26 2017, 11:27 AM
i need code if any one have aduc706 interfacing lcd 16*2
msd007
Wed Jul 26 2017, 11:26 AM
pl help me how to write code of interfacing ADuc7026 controlleo lcd pl any one help me hoe to initializend configure the direction

Downloads

Comments

abdullah6484
Tue Aug 22 2017, 10:21 PM
crank.tp
Mon Aug 21 2017, 02:17 PM
poojab51296
Sun Aug 20 2017, 10:18 AM
kira113
Sat Aug 19 2017, 08:40 AM
Pirateak
Thu Aug 17 2017, 02:02 PM
sathishksk71
Wed Aug 16 2017, 04:47 AM
rawat742
Sun Aug 13 2017, 05:49 PM
alparslanbagriyanik
Fri Aug 11 2017, 08:10 AM

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Forum Activity
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 01:30 PM
It will be easier to help if you can post the comp...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 01:24 PM
There is a company in china which makes 8051 micro...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 01:19 PM
Which library or driver are you using for SD card ...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 01:05 PM
Thanks for Sharing.. I will post this in download ...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 01:04 PM
This post looks more like a link posting than actu...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 01:01 PM
here is library reference link: https://github.com...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 01:00 PM
You can port an Arduino library to PIC. What kind ...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Aug 23 2017, 11:40 AM
Most commonly 3D formats are SBS (Side by side) an...
rawat742 Avatar
Posted By rawat742
Mon Aug 21 2017, 09:13 PM
Dear sir, I want purchase a debugger for 8051 , p...
rawat742 Avatar
Posted By rawat742
Mon Aug 21 2017, 09:09 PM
Dear Sir, I want to programe for de...