arduino-0022
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arduino-0022-linux-x64/reference/PinMode.html
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arduino-0022-linux-x64/reference/PinMode.html
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<title>Arduino - PinMode </title>
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<a class="urllink" href="http://www.arduino.cc/blog/" rel="nofollow">Blog »</a><a class="urllink" href="http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl" rel="nofollow">Forum »</a><a class="urllink" href="http://www.arduino.cc/playground/" rel="nofollow">Playground »</a>
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<p><strong>Reference</strong> <a class='wikilink' href='index.html'>Language</a> | <a class='wikilink' href='Libraries.html'>Libraries</a> | <a class='wikilink' href='Comparison.html'>Comparison</a> | <a class='wikilink' href='Changes.html'>Changes</a>
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</p>
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<p class='vspace'></p><h2>pinMode()</h2>
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<h4>Description</h4>
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<p>Configures the specified pin to behave either as an input or an output. See the description of <a class='wikilink' href='http://arduino.cc/en/Tutorial/DigitalPins'>digital pins</a> for details.
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</p>
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<p class='vspace'></p><h4>Syntax</h4>
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<p>pinMode(pin, mode)
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</p>
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<p class='vspace'></p><h4>Parameters</h4>
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<p>pin: the number of the pin whose mode you wish to set
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</p>
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<p class='vspace'></p><p>mode: either <a class='wikilink' href='Constants.html'>INPUT</a> or <a class='wikilink' href='Constants.html'>OUTPUT</a>
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</p>
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<p class='vspace'></p><h4>Returns</h4>
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<p>None
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</p>
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<p class='vspace'></p><h4>Example</h4>
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<pre>
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int ledPin = 13; // LED connected to digital pin 13
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void setup()
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{
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pinMode(ledPin, OUTPUT); // sets the digital pin as output
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}
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void loop()
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{
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digitalWrite(ledPin, HIGH); // sets the LED on
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delay(1000); // waits for a second
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digitalWrite(ledPin, LOW); // sets the LED off
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delay(1000); // waits for a second
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}
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</pre>
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<p class='vspace'></p><h4>Note</h4>
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<p>The analog input pins can be used as digital pins, referred to as A0, A1, etc.
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</p>
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<p class='vspace'></p><h4>See also</h4>
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<ul><li><a class='wikilink' href='Constants.html'>constants</a>
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</li><li><a class='wikilink' href='DigitalWrite.html'>digitalWrite</a>()
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</li><li><a class='wikilink' href='DigitalRead.html'>digitalRead</a>()
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</li><li>Tutorial: <a class='wikilink' href='http://arduino.cc/en/Tutorial/DigitalPins'>Description of the pins on an Arduino board</a>
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</li></ul><p class='vspace'></p><p><a class='wikilink' href='index.html'>Reference Home</a>
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</p>
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<p class='vspace'></p><p><em>Corrections, suggestions, and new documentation should be posted to the <a class='urllink' href='http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?board=swbugs' rel='nofollow'>Forum</a>.</em>
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</p>
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<p class='vspace'></p><p>The text of the Arduino reference is licensed under a
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<a class='urllink' href='http://creativecommons.org/licenses/by-sa/3.0/' rel='nofollow'>Creative Commons Attribution-ShareAlike 3.0 License</a>. Code samples in the reference are released into the public domain.
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