unknown LCD with HD61202

Discussion in 'General Electronics Chat' started by seniorlemuren, Apr 5, 2011.

  1. seniorlemuren

    Thread Starter New Member

    Apr 4, 2011
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    Hi. I am new member here. I am working building me a boat 12 by 4 meter steel. And I like to use som LCD:s to display engine parameters, rudder indikation and more stuff on this displays. I intend tu use my pc with windows to send data to them. I could do some programming in Delphi. Or maybe is better to drive it from a PIC16F887 and do the programming in MPLAB with C?

    I have take the LCD:s out from hand helded computers >SYMBOL PDT3500< It is 15 rows by 21 char. And I have measured out the connections between the kabel and the HD61202 inside the LCD.

    There are 2 x HD61203 on the pcb-back and 2 x HD61202 on the pcb-front behind the display. One of the kabel (#17) from JP is not connected to the HD61202. It´s connected to pin #4 on a 74HC00

    The question is how to do it. Is there some drivers to use on the parallell port I can send data to it from Delphi? And how to connect? I can't figure it out how to dim the LCD.
    Hope you understand my english.
     
  2. seniorlemuren

    Thread Starter New Member

    Apr 4, 2011
    2
    0
    Asking again.
     
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