Hi all, this is my first post so I apologize if this is the wrong topic. I have recently started doing the tutorial projects in the arduino starter projects. I was doing the electric keyboard and noticed something strange. It seems that when none of the keys are pressed, there is negligible resistan…

Uno's analog pins and short circuits

fungus April 14, 2014, 11:00am 2

When pins are set as INPUT they have a very high resistance (megaohms).

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