about 7 segment display

Discussion in 'The Projects Forum' started by vivek.raunak, Jan 19, 2011.

  1. vivek.raunak

    Thread Starter New Member

    Oct 23, 2010
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    plz tell me how pin of 7 segment display is counted.
    plz soon..........
     
  2. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    What's the part number?
     
  3. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    The datasheet for the display shows the pins and their numbers.
    The datasheet also tells you many more spec's that you should know.
    Why don't you have the datasheet?
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    I think our OP is confused about where is pin 1 of the display is.

    Sometimes the corner of the display is slightly flattened at pin 1. Sometimes there is a slight notch at one end.

    Even if you don't have a datasheet available, you can usually figure out which pin does what pretty quickly by using the diode check function on a multimeter, or if you don't have one of those, by using a battery with a resistor and a couple of wires.
     
  5. Markd77

    Senior Member

    Sep 7, 2009
    2,803
    594
    Assuming it's red, yellow or green, I'd recommend 3V and a 470 ohm resistor.
     
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