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              <li>Analog Input - <small>$device-&gt;analog_read($pin)</small></li>
              <li>PWM! - <small>$device-&gt;analog_write($pin)</small></li>
            </ul>
          </p>
        </div>

        <div class="slide">
          <h2>Practical Uses?</h2>
          <p>
            <ul>
              <li>I/O for desktop applications (Very Poor Man's <a href="http://labjack.com/" target="_blank">Labjack</a>)</li>
              <li>Education/Study</li>
            </ul>
          </p>
        </div>

        <div class="slide">
          <h2>Example: Interface Exploration</h2>
          <p style="min-height:7em">
            <a href="http://www.sureelectronics.net/goods.php?id=1119" target="_blank">Sure Electronics: Red LED Matrix Board</a><br/>
            <img src="images/sureelectronics-32x8matrix.png" style="width:9em;float:left" />