mikroc keyboard with lcd display

Discussion in 'Embedded Systems and Microcontrollers' started by nikki21, Oct 16, 2013.

  1. nikki21

    Thread Starter New Member

    Oct 16, 2013
    4
    0
    hi everyone, do you have a circuit diagram of keyboard with lcd display.. pls give me. tnx
     
  2. Art

    Distinguished Member

    Sep 10, 2007
    785
    61
    Something like this?

    [​IMG]
     
  3. nikki21

    Thread Starter New Member

    Oct 16, 2013
    4
    0
    no.hehe.. a keyboard not a keypad.
     
  4. MrChips

    Moderator

    Oct 2, 2009
    12,440
    3,361
    You mean something like this:

    [​IMG]
     
    Last edited: Oct 16, 2013
  5. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
    2,802
    832
    A classic schematic, MrChips. I wonder how many recognize its origins.
     
  6. MrChips

    Moderator

    Oct 2, 2009
    12,440
    3,361
    Yes, I built one myself.

    A classic example of how not to draw a circuit schematic!
     
    absf likes this.
  7. absf

    Senior Member

    Dec 29, 2010
    1,492
    372
    I know this one. It's from one of the Don Lancaster books, right?

    Allen
     
  8. MrChips

    Moderator

    Oct 2, 2009
    12,440
    3,361
    Close, but no cigar.

    I have both books and only a photo of the finished product of the above is shown in one of the books.
     
    absf likes this.
  9. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    nikki21: The only time I used a full keyboard on a PIC micro I plugged it into the USB port of a PIC32 device.

    You need to be able to be a USB master (or whatever the term is) to do this.
     
  10. MrChips

    Moderator

    Oct 2, 2009
    12,440
    3,361
    Or you can use the original IBM PC serial keyboard or a PS/2 keyboard.
     
  11. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    MikroC has a built-in library for reading a PS2 PC keyboard.

    The help file that comes with the compiler has all the info you need including code examples.
     
  12. nikki21

    Thread Starter New Member

    Oct 16, 2013
    4
    0
  13. nikki21

    Thread Starter New Member

    Oct 16, 2013
    4
    0
    [​IMG]



    is this correct?this the diagram of my keyboard with lcd display..
    i dont know the clock and data's location in the keyboard. pls help me.
    [​IMG]
     
  14. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    If you google for "PS2 connector pinout" you will find diagrams showing which pin is CLK and DATA in the PS2 connector. :)
     
Loading...