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    How to know that 7-segment display is cathode or anode ?

    how can we know that 7-segment display is cathode or anode.please help me.

    •   Alt21st October 2007, 13:32

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  2. #2
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    Re: display

    What is the model number of your display? I can read it and tell you.

    Cathode if the common is +v. Anode if the common is ground.


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    •   Alt22nd October 2007, 05:42

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  3. #3
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    Re: display

    Well if you dont have model number, you can test it with multimeter, but you will have to know pinout... Or just the common pin...
    But usualy there is a model number, just type it in google and the results will come out...



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