Keypad Interfacing


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  1. #1
    Join Date
    May 2010
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    Default Keypad Interfacing

    Hello guys.

    Ive to interface a 12 keys keypad into with my PIC microcontroller (PIC 16f877a). With the help of this keypad i want to control my LCD display which is already being attached with the microcontroller. Please help me with that. I need the circuit diagram as well as guideline on how to program the PIC too.

    Thanks

  2. #2
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    Nov 2003
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    Wellton, U.S.A.
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    This is for a 4x4 but it should get you started.
    http://www.picbasic.co.uk/forum/showthread.php?t=3250
    Dave
    Always wear safety glasses while programming.

  3. #3
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    Dec 2008
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    You can also see the schematic and sample pbp files for the LAB-X1 development board. Both are at www.melabs.com.

  4. #4
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    Thanks guys. Will get back to you after referring all the links.

  5. #5
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    Can i have the link of the manual from where i can read and know more about basic keypad commands (defines,routines etc.)?

  6. #6
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    I did not know there was a manual for keypads?
    You can have them on a port or two and then read the port(s) or use a shift register and read that.

    Not much more to it.
    Dave
    Always wear safety glasses while programming.

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