Go Down

Topic: analogRead() reporting readings in unused pins (Read 583 times) previous topic - next topic

jmichael

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.

Coding Badly

Is the Arduino fried? Irreparably?


No...

http://www.google.com/search?q=%22floating+pin%22+site%3Aarduino.cc

jmichael

Ah, thank you so much Coding Badly. I'd forgotten about the internal pull-ups.

Go Up