Hey gang! I'm an EE and am currently using Arduino's to finish my senior design project (a wireless fencing strip/piste). I'm using the arduino to simply read the three lines of the weapon ( Called a, b , c). When the button is depressed, the lines a and b should connect. Since I originally had th…

Arduino "wave" of input noise

Grumpy_Mike March 21, 2012, 8:15am 3

At a guess I would say you had a floating analogue input pin. That is not one that is actually connected to anything. Post your schematic please.

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