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Author Topic: analogRead() reporting readings in unused pins  (Read 538 times)
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My Arduino Uno has begun reporting varying analog readings at all times, regardless of whether anything is connected to the pin or not and regardless which pin I check.

Is the Arduino fried? Irreparably?

Thanks for any help.
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Is the Arduino fried? Irreparably?

No...

http://www.google.com/search?q=%22floating+pin%22+site%3Aarduino.cc
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Ah, thank you so much Coding Badly. I'd forgotten about the internal pull-ups.
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