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

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bhatt_tanmay

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

david90

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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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    tuanb

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the_edge

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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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