ngHelper</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">topic</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N16HABaseDeviceType14subscribeTopicEPKcPK19__FlashStringHelper" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>Subscribes to the given data topic.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><st