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I made pretty much exact same cube but with intention to control it via arduino from the start.The part I'm having trouble is: when any LED is supposed to light up, the whole column lights up (with brightness dependent on how many LEDs were to supposed to light up on that column).I've checked the part of the circuit with the transistors with an oscilloscope and it seems to work as intended even though I used 2n4401 transistors instead of 2n2222 as in this instructable.Anyone has any idea where should problem might be? all help is greatly appreciated.
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