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You are here: Home / Topics / how to make a keypad

how to make a keypad

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Microcontroller › AVR › how to make a keypad

  • This topic has 2 replies, 3 voices, and was last updated 7 years, 4 months ago by Ashutosh Bhatt.
Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • January 31, 2011 at 10:13 am #579
    Kigongo
    Participant

    sir my project is digital door lock system… i want to make a keypad which have 0-9 digitals an one k button on it plz need you guidance

    January 31, 2018 at 1:13 pm #14705
    GANEEV SINGH
    Participant

    Hi

    These links might help you:

    1. https://www.engineersgarage.com/contribution/keypad-locking-system-with-user-defined-password

    2. https://www.engineersgarage.com/8051/tags/8051?page=9&ui=default

    3. https://www.engineersgarage.com/contribution/sleeping-security-smart-keypad-lock-using-atmega16

    January 31, 2018 at 5:48 pm #14706
    Ashutosh Bhatt
    Participant

    its very simple to make

    just make row-column (matrix) connection like 4×3 or 3×4

  • Author
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