Numeric LCD display for project

Discussion in 'The Projects Forum' started by yoamocuy, Dec 15, 2012.

  1. yoamocuy

    Thread Starter Active Member

    Oct 7, 2009
    80
    0
    Hey,

    I"m looking at using a cheap transflective numeric lcd for a hobby project and came across this one.

    http://www.mouser.com/ds/1/244/LCD-S401C39TF-12896.pdf

    On the datasheet, the pinout doesn't seem to have a vcc pin or anything. It just has the pins for the characters and 2 COM's. I realize I need a driver for this but the LCD itself should have pins to power the backlight, etc.. shouldn't it?
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,429
    3,360
    Look at the specs. The operating voltage is 5V AC for each segment.
    That is how LCD works.
     
  3. yoamocuy

    Thread Starter Active Member

    Oct 7, 2009
    80
    0
    Ok, thanks.
     
  4. tubeguy

    Well-Known Member

    Nov 3, 2012
    1,157
    197
    How where you planning on controlling it?
    Why don't you use one designed to connect directly to a microcontroller?
     
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