Am a bit fuzzy here... Thinking of analog input between 0 and 1024, now, when uploading following code to my arduino: int analogPin = 0; // potentiometer wiper (middle terminal) connected to analog pin 3 int lightPin = 9; // outside leads to ground and +5V int val = 0; …

Analog input, always giving a value ?

MarkT January 13, 2013, 12:23pm 7

What device? Are grounds common?

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