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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

62815

  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

Thu Aug 27 2015, 10:06 PM
1
-1'
Thu Aug 27 2015, 10:05 PM
1
1
Thu Aug 27 2015, 10:03 AM
Nilesh Thakre
anybody please help me ,i face problem reading a message and identify the string of read message (8051 uc with sim300 gsm modem i have use)
ajay_bhargav
Thu Aug 27 2015, 07:17 AM
@KRIZZA, make the circuit, and load hex file you're done.
Thu Aug 27 2015, 03:39 AM
sk nawal
arm control ckt
Mon Aug 24 2015, 02:11 AM
KRIZZA
@ExperimenterUK BUILD PROJECT LIKE THIS
gkn06
Thu Aug 20 2015, 03:17 AM
hello anybody please
Wed Aug 19 2015, 09:48 AM
Kiruba
I am new to ARM Development..I need help
Tue Aug 18 2015, 09:34 AM
mairja naser
pic30f2010 ic usb copy
ExperimenterUK
Mon Aug 17 2015, 10:32 PM
@krizza build what ?

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syahaikas102
Wed Aug 26 2015, 02:03 PM
iscode
Fri Aug 21 2015, 11:19 PM
JunkmanXL
Thu Aug 20 2015, 11:55 AM
pari@3120
Thu Aug 20 2015, 07:07 AM
gkn06
Wed Aug 19 2015, 09:50 AM
mopatihanuman
Tue Aug 18 2015, 12:47 PM
gebrish
Thu Aug 13 2015, 08:26 AM
casha
Fri Aug 07 2015, 07:42 AM

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