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need a simple led driver

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Deexith Hasan

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i'm making a big digital clock and using led instead of large 7 seg display.......i used uln2003 as led driver but didnt worked suggest me some idea
 

Hi,

Why did ULN2003 not work?
Maybe it has something to do with current and voltage.

Please tell us: Supply voltage, display voltage, segment current

Klaus
 

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