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Author Topic: Re: Open circuit interrupt?  (Read 504 times)
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I don't think you connected the grounds, Dave.
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You use the definite article - "the circuit", but you don't describe 'the circuit'
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Input PortD:2 (pin 7) and PortD:3 (Pin smiley-cool.
Currently closed circuit switches connected to those ports with a 10k ohm resistor tied to ground to bring the port LOW when the switch opens.

Wired as per diagram on digital input inBrian Evans Arduino Programming Notebook.
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I don't think you connected the grounds, Dave.
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Quote
Wired as per diagram on digital input inBrian Evans Arduino Programming Notebook.
Don't have a copy.
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"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
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Like this:

http://arduino.cc/en/Tutorial/Button
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