00126"></a><span class="lineno">  126</span>&#160;<span class="preprocessor">#</span><span class="preprocessor">elif</span> <span class="preprocessor">defined</span><span class="preprocessor">(</span><span class="preprocessor">__AVR_ATmega32U4__</span><span class="preprocessor">)</span></div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordflow">if</span> (pin &gt;= 18) pin -= 18; <span class="comment">// allow for channel or pin numbers</span></div><div 