Keypad Base Lock with PIC

Description
This Keypad base electronic lock is able to use for security systems. You can add Electromagnetic lock through transistor to output (pin 4) and alarm devise to Emergency output (pin 5) of the circuit. This project made using MikroC PRO C compiler. If you want to change Master Code, can change it using C code (see Tutorial Guide 01). This project has two codes, first is Manual reactivate lock and second is Auto reactivate lock. You are able to use any of them.

  v Manual Reactivate Lock – Password need to both deactivate and   reactivate lock. (see Video Guide)

  v Auto Reactivate Lock – Password need only to deactivate lock. Lock is auto reactivating after 10-15 seconds. You are able to change this time period. (see Tutorial Guide 02)

Tutorial Guide 01


Tutorial Guide 02
(for more information follow Video Guide or download project)

Circuit Diagram


Parts List 

  • PIC Programmer
  • 16F877A PIC Microcontroller
  • 16x2 LCD Display
  • 4x4 Keypad
  • 4MHz Crystal
  • 10K Resistors
  • 470/330 Resistors
  • 22pF Capacitors
  • Push button
  • LEDs or Output Devises 
Video guide


Final Project 





You can Download Full Project with Proteus Simulator file and Video Guide 


Update 01
Manual & Auto reactivate keypad base lock
New Features
  • Switching Manual and Auto reactivate using simple switch
  • More indicate LEDs 
Video guide


Final Project






                                          You can Download Full Project with Proteus Simulator file

51 comments:

  1. UnknownSeptember 11, 2015 at 10:11 AM

    hello sir. why when i try to rebuild the program, its show so many errors.
    this one of the errors :
    Undeclared identifier 'Keypad_Key_Click'

    ReplyDelete
    Replies
    1. Hasitha SunethSeptember 13, 2015 at 11:19 PM

      1. Check, you are using right compiler.(MikroC Pro)
      2. Check, library s are properly activated. (Ticked)
      3. Do one change per time, If you try to change code.

      Delete
    2. elektrikalrekayasaOctober 4, 2022 at 5:32 AM

      Sir can you share please code

      Delete
  2. AnonymousDecember 19, 2015 at 9:55 AM

    hello sir, i am having problem in code when i implemented on hardware can you help me

    ReplyDelete
  3. ⴰⵎⴰⵣⵉⵖFebruary 19, 2016 at 8:07 AM

    thanks allot

    ReplyDelete
  4. ⴰⵎⴰⵣⵉⵖFebruary 19, 2016 at 8:08 AM

    thanks allot

    ReplyDelete
  5. AnonymousFebruary 23, 2016 at 9:40 PM

    hi WHERE IS THE CODE

    ReplyDelete
  6. UnknownMay 15, 2016 at 4:16 AM

    This comment has been removed by the author.

    ReplyDelete
  7. TharinduJune 10, 2016 at 9:16 AM

    Sir,
    I need to know when we power off the curcit,The newly entered password is stored in the chip.When we give power back to the curcit can we use that password.....

    ReplyDelete
    Replies
    1. Hasitha SunethJune 14, 2016 at 1:44 PM

      Yes, you can use new password after power failure, because password stored in EEPROM memory (Electrically Erasable Programmable Read Only Memory) in micro-controller. EEPROM memory can be read and write electrically, can be accessed through program. It can be used to store data such as sensor logs, device parameters which should not be loss during power loss or CPU reset.

      Delete
  8. UnknownJune 11, 2016 at 3:13 AM

    program runs on simulatons fine, but hass error when programming to the chip. need help ASAP.

    ReplyDelete
    Replies
    1. Hasitha SunethJune 14, 2016 at 1:49 PM

      Pl check your programmer(software & hardware) and micro-controller, because programming failure can't occurred after code successfully compiled.

      Delete
  9. UnknownJune 19, 2016 at 11:56 AM

    if i modify "by hashita" the all project get's stuck ...it gets stuck on " press *" and if you press it ... nothing is happening!

    ReplyDelete
  10. MECHANIZATION IN POWERTILLER TECHNOLGYJuly 18, 2016 at 9:40 PM

    well done working on this project now

    ReplyDelete
  11. UnknownAugust 16, 2016 at 6:08 AM

    am trying to program one microcontroller and one keypad to control an electronic lock, but i want 6 passwords for 6 users. i have tried setting the passwords in an array in my C code but it doesnt work. any help?

    ReplyDelete
  12. TharinduOctober 27, 2016 at 6:27 AM

    Sir can yot teach me how to interface keypad to pic16f877a,i connect a keypad to PORTD,but it is not respond.....
    I'm usimg 8Mhz crystal..

    ReplyDelete
  13. ابوالسعودNovember 1, 2016 at 7:52 AM

    good!

    ReplyDelete
  14. UnknownNovember 13, 2016 at 3:09 AM

    link is dead

    ReplyDelete
  15. AnonymousNovember 22, 2016 at 6:19 AM

    Could you pass the code is that the link doesn't work?

    ReplyDelete
  16. UnknownNovember 27, 2016 at 3:13 AM

    plz give me the link to download ISIS+MIKROC

    ReplyDelete
  17. UnknownDecember 4, 2016 at 12:00 AM

    Hey in which file do i open the link in??

    ReplyDelete
  18. NadaDecember 16, 2016 at 2:13 PM

    how can i talk too you
    i need help in my mini project

    ReplyDelete
  19. UnknownMarch 5, 2017 at 1:30 AM

    This comment has been removed by the author.

    ReplyDelete
  20. UnknownMarch 5, 2017 at 1:38 AM

    hi,
    thank you for sharing your knowledge,
    very nice project..
    i use it to study basic microntroller right now..i
    hope you can still continue sharing code and hardware of your project done..
    GOD BLESS YOU ALWAYS

    ReplyDelete
  21. ahmedhepashAugust 10, 2017 at 4:50 AM

    good

    ReplyDelete
  22. d manOctober 17, 2017 at 5:18 AM

    pls bro how can i interface keypad code with another code(flowmeter code or fingerprint code )thekeypad will be controlling it

    ReplyDelete
  23. UnknownDecember 17, 2017 at 6:14 AM

    Hello, am having a problem with the simulation, when i add the resistors to the keypad it doesn't work but works well without the resistors. Then when i implement the hardware the keypad doesn't work.

    ReplyDelete
  24. Shalom SystemsJanuary 5, 2018 at 3:41 AM

    Useful Information, your blog is sharing unique information....
    Thanks for sharing!!!
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    ReplyDelete
  25. UnknownFebruary 16, 2018 at 1:18 PM

    can I use PIC16F84A ?

    ReplyDelete
  26. UnknownFebruary 18, 2018 at 3:29 AM

    Muy buen proyecto, didáctico y práctico para quienes nos inicamos en este mudo de la programación...bendiciones

    ReplyDelete
  27. AnonymousApril 22, 2018 at 4:06 AM

    Good Project. Thanks. But how to add Buzzer this project. Key press short beep. Correct code one long beep. Error Two beep. Alarm 4 long beep. etc.

    ReplyDelete
  28. UnknownAugust 2, 2018 at 10:31 AM

    HI DEAR Hasitha Gamage
    I'm so interested by yr project 'Keypad Base Lock with PIC 'and it's code in MicroC language and it seems to be very simple and clear to whom are in higher level of knowledge then me and my request is that: can you send me the same code but with more explanation line by line as detailed comments because a lot off a new words, functions, etc. are used on it and it takes to me a long time to assimilate without help
    REGARDS

    ReplyDelete
  29. CarloMarch 14, 2019 at 3:04 AM

    Why the keypad is not working!

    ReplyDelete
  30. MunavarMay 21, 2019 at 9:26 AM

    Dear sir,
    Can u please make the program codes using mplab xc8? Because our project is based on this software. And could u please send the codes to the below mentioned mail.

    munaveer00@gmail.com

    ReplyDelete
  31. Shalom SystemsJuly 14, 2019 at 11:36 PM

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    ReplyDelete
  32. UnknownJuly 18, 2019 at 12:11 AM

    Thank you for your post. This is excellent information. It is amazing and wonderful to visit your site.
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    ReplyDelete
  33. Shalom SystemsAugust 11, 2019 at 9:46 PM

    Thank you for your post. This is excellent information. It is amazing and wonderful to visit your site.
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    ReplyDelete
  34. ouestferOctober 21, 2019 at 9:19 AM

    thnkx brother

    ReplyDelete
  35. UnknownNovember 4, 2019 at 7:39 PM

    I cannot open the code can U help me? please give the link of the Mikro C code:(

    ReplyDelete
  36. UnknownNovember 4, 2019 at 8:02 PM

    no need for answering. Thanks problem solved:)

    ReplyDelete
  37. UnknownNovember 29, 2019 at 7:01 PM

    Can you add I2C to LCD?

    ReplyDelete
  38. UnknownJune 21, 2020 at 8:54 AM

    Sir

    may you please send me the code cause I didnt find it

    ReplyDelete
  39. UnknownSeptember 10, 2021 at 11:18 PM

    Excelente trabajo, me ha servido de mucha ayuda especialmente para un proyecto de seguridad... Saludos y muchas bendiciones

    ReplyDelete
  40. ahmetDecember 3, 2021 at 5:17 AM

    ı cant access to this page can someone help me about it

    ReplyDelete
  41. AnonymousOctober 5, 2022 at 9:14 AM

    Download link is not available. Could you please share the native file to email id:phanikumargaddam@gmail.com

    ReplyDelete
  42. AnonymousMay 13, 2024 at 11:24 PM

    Hasitha Suneth could you update the link please?

    ReplyDelete

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