please help how to read the displayed data in LCD?

Discussion in 'Programmer's Corner' started by chychy1, Jan 14, 2012.

  1. chychy1

    Thread Starter New Member

    Jan 9, 2012
    we were trying to display data in lcd using parallel cable port to display the id number from our system., the problem is., we also need to get that displayed numbers to the 7 segment and multiplex it., does anyone here knows how to read the data from the lcd 16x2?
  2. spinnaker

    AAC Fanatic!

    Oct 29, 2009
    Well you know what data you are displaying to the LCD. Why not display that same data on the 7 segment? Why do you need to read the LCD to get it?
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    What display driver? HD44780 compatible?

    Are your driving RS?

    4 or 8 data lines?