help needed with LCD display

Discussion in 'The Projects Forum' started by hunterage2000, Jul 20, 2012.

  1. hunterage2000

    Thread Starter Active Member

    May 2, 2010
    400
    0
    hi, Ive just purchased a 16 x 2 LCD screen and it has 8 x 2 pins. Does anyone know how this works and how is the individual pins used?
     
    • LCD.jpg
      LCD.jpg
      File size:
      29 KB
      Views:
      15
  2. nerdegutta

    Moderator

    Dec 15, 2009
    2,515
    785
    Have you checked the datasheet?

    I'd think it will be something like this:
    1: Vss - gnd
    2: Vdd - powersupply
    3: Vo - Contrast
    4: RS - Register Select
    5: R/W - Read / Write
    6: E - Enable signal
    7 - 14: DB0-DB7 - Databit0 - Databit14

    15 and 16 might be backlight.

    You should check the datasheet anyway. :)
     
  3. hunterage2000

    Thread Starter Active Member

    May 2, 2010
    400
    0
    The thing is, how is each pin individually used because theres will a voltage running through 2 pins if the LCD is attached to the breadboard horizontally?
     
  4. nerdegutta

    Moderator

    Dec 15, 2009
    2,515
    785
  5. MrChips

    Moderator

    Oct 2, 2009
    12,440
    3,360
    He meant, if he plugs the LCD in a breadboard each pair of pins will be shorted.
    That is because the pinout on his LCD is 2x8 and not 1x14 nor 1x16.

    The op will have to get a 2x8 header and 16 conductor ribbon cable and will have to hand-wire the 16 conductors to a 16-pin male header in order to plug it into a breadboard.

    Make sure you get the part number of the LCD and locate the datasheet that shows the pinouts. If you post the part number someone should be able to help.
     
Loading...