Pic16f877a and interface to keypad and LCD in microbasic i want help

Discussion in 'Programmer's Corner' started by lina889, Jan 21, 2011.

  1. lina889

    Thread Starter New Member

    Oct 4, 2010
    hello everybody
    am trying to connect LCD and keypad to PIC16f877a but after compile the code
    and connect the schematic in Proteus when i Press on the keypad no out put on the LCD
    i upload the micobasic program and the Proteus here
  2. spinnaker

    AAC Fanatic!

    Oct 29, 2009
    If you want people to help you then you need to do some work on your own.

    You need to determine where your problem is located.

    First write a very simple program to put Hello on the first line of the LCD and World on the second line. This will let you know if the problem is with the LCD or with the keypad.

    Is this just a simulation? Or do you have this circuit built?

    And this post should be in the Embedded Forum.