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109 lines
4.5 KiB
HTML
109 lines
4.5 KiB
HTML
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<title>Arduino - StepperExample </title>
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<div class="title"><a href="http://www.arduino.cc"/>Arduino</a></div>
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<p><a class='wikilink' href='Guide_index.html'>Getting Started</a>
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<p><strong>Reference</strong> <a class='wikilink' href='index.html'>Language</a> (<a class='wikilink' href='Extended.html'>extended</a>) | <a class='wikilink' href='Libraries.html'>Libraries</a> | <a class='wikilink' href='Comparison.html'>Comparison</a>
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</p>
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<p class='vspace'></p><h2>Stepper Library Example Sketch</h2>
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<h4>Description</h4>
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<p>A stepper motor follows the turns of a potentiometer (or other sensor) on analog input 0. The <a class='wikilink' href='StepperUnipolarCircuit.html'>unipolar</a> or <a class='wikilink' href='StepperBipolarCircuit.html'>bipolar</a> stepper is controlled with pins 8, 9, 10, and 11, using one of the circuits on the linked pages.
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</p>
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<p class='vspace'></p><h4>Code</h4>
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<pre>
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#include <Stepper.h>
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// change this to the number of steps on your motor
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#define STEPS 100
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// create an instance of the stepper class, specifying
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// the number of steps of the motor and the pins it's
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// attached to
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Stepper stepper(STEPS, 8, 9, 10, 11);
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// the previous reading from the analog input
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int previous = 0;
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void setup()
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{
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// set the speed of the motor to 30 RPMs
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stepper.setSpeed(30);
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}
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void loop()
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{
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// get the sensor value
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int val = analogRead(0);
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// move a number of steps equal to the change in the
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// sensor reading
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stepper.step(val - previous);
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// remember the previous value of the sensor
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previous = val;
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}
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</pre><p><a class='wikilink' href='index.html'>Reference Home</a>
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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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