Help with 7 segment display

Discussion in 'General Electronics Chat' started by lefam, Dec 14, 2010.

  1. lefam

    Thread Starter Member

    Nov 30, 2010
    33
    0
    Hi guys.

    I have bought some 7 segment LED displays (common anode). But the pins are not arranged like in 7 segment display below.

    [​IMG]

    My displays have the pins in the left and right side (instead of in the top and bottom like in picture above).

    Can you help me using these displays.

    In the website I bought them they had this diagram:
    [​IMG]

    Please help me to use these displays.
     
  2. count_volta

    Active Member

    Feb 4, 2009
    435
    24
    I think the data sheet is telling you: pins 3 or 8 are power. Pin 7 is A for example. Pin 6 is B. Pin 4 is C. And so on.

    I usually don't trust the data sheet when it comes to 7 seg displays. Just try grounding each of the pins and see which segments lights up, and then record it on a piece of paper. Make sure to connect pin 3 or 8 to power, 5V or whatever.
     
  3. lefam

    Thread Starter Member

    Nov 30, 2010
    33
    0
    I found out which pins represent the common anodes.
    I connected each PIN to power (with a 0.5K resistor) in succession until I found the 2 anodes.
    The upper left PIN and bottom right PIN are the common anodes.

    The diagram is not correct for the displays I received.

    Thank you
     
  4. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    Are the leads out of the display like a DIP?

    Can you post a picture of the front and back of your display to see how the pins are laid out, and if there are any markings/notches or maybe a part number on it?
     
  5. lefam

    Thread Starter Member

    Nov 30, 2010
    33
    0
    The leads are out like a DIP.
    My problem is solved
     
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