201 lines
7.9 KiB
HTML
201 lines
7.9 KiB
HTML
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<title>SoftwareServo \ Language (API) \ Processing 2+</title>
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<a href="../../index.html" >Language</a><br>
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<p class="ref-notice">This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, <a href="https://github.com/processing/processing-docs/issues?state=open">please let us know</a>. If you prefer a more technical reference, visit the <a href="http://processing.github.io/processing-javadocs/core/">Processing Core Javadoc</a> and <a href="http://processing.github.io/processing-javadocs/libraries/">Libraries Javadoc</a>.</p>
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<table cellpadding="0" cellspacing="0" border="0" class="ref-item">
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<tr class="name-row">
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<th scope="row">Name</th>
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<td><h3>SoftwareServo</h3></td>
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</tr>
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<tr class=""><th scope="row">Examples</th><td><div class="example"><pre >
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import processing.io.*;
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SoftwareServo servo;
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void setup() {
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servo = new SoftwareServo(this);
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servo.attach(4);
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// On the Raspberry Pi, GPIO 4 is pin 7 on the pin header,
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// located on the fourth row, above one of the ground pins
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}
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void draw() {
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// we don't go right to the edge to prevent
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// making the servo unhappy
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float angle = 90 + sin(frameCount / 100.0)*85;
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servo.write(angle);
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}
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</pre></div>
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</td></tr>
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<tr class="">
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<th scope="row">Description</th>
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<td>
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Opens an RC servo motor connected to a GPIO pin<br/>
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</br>
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This library uses timers to control RC servo motors by means of pulse width
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modulation (PWM). While not as accurate as dedicated PWM hardware, it has
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shown to be sufficient for many applications.<br/>
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<br/>
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Connect the signal wire (typically colored yellow) to any available GPIO pin
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and control the servo's angle as shown in the example sketch.
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</td>
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</tr>
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<tr class=""><th scope="row">Methods</th><td><table cellpadding="0" cellspacing="0" border="0"><tr class="">
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<th scope="row"><a href="SoftwareServo_attach_.html">attach()</a></th>
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<td>Attaches a servo motor to a GPIO pin</td>
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</tr>
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<tr class="">
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<th scope="row"><a href="SoftwareServo_attach_.html">attach()</a></th>
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<td>Attaches a servo motor to a GPIO pin using custom pulse widths</td>
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</tr>
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<tr class="">
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<th scope="row"><a href="SoftwareServo_write_.html">write()</a></th>
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<td>Moves a servo motor to a given orientation</td>
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</tr>
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<tr class="">
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<th scope="row"><a href="SoftwareServo_attached_.html">attached()</a></th>
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<td>Returns whether a servo motor is attached to a pin</td>
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</tr>
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<tr class="">
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<th scope="row"><a href="SoftwareServo_detach_.html">detach()</a></th>
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<td>Detatches a servo motor from a GPIO pin</td>
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</tr></table></td></tr>
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<tr class=""><th scope="row">Constructor</th><td><pre>SoftwareServo(<kbd>parent</kbd>)
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</pre></td></tr>
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<tr class=""> <th scope="row">Parameters</th><td><table cellpadding="0" cellspacing="0" border="0"><tr class="">
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<th scope="row" class="code">parent</th>
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<td>PApplet: typically use "this"</td>
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</tr></table></td> </tr>
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</table>
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Updated on April 30, 2017 02:33:20pm EDT<br /><br />
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