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Topic: Broken Uno? (Read 362 times) previous topic - next topic


Hi, I maybe broken my Uno. Idk, When I connect three led, and let them lights, first lights normally(2V) and the other just a veryveryveryvery bit(1,7V). Do I need to change chip, or what? Thanks.


Sounds like the results you would get if you left out a 'pinMode(pin, OUTPUT)' somewhere.
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James C4S

What size resistor are you using?

You probably didn't set the pins to output.
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I'm using 220ohm resistor, but I am absolutely dumbass and I forgot "output" code.

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