            <span class="types"><span class="type">integer</span></span>
         : LED brightness in [0, 15]
        </li>
    </ul>





</dd>
    <dt>
    <a name = "all"></a>
    <strong>all (val)</strong>
    </dt>
    <dd>
    set state of all LEDs on this arc device.


    <h3>Parameters:</h3>
    <ul>
        <li><span class="parameter">val</span>
            <span class="types"><span class="type">integer</span></span>
         : LED brightness in [0, 15]
        </li>
    </ul>





</dd>
    <dt>
