lass="hljs-title">chart</span><span class="hljs-params">($id)</span>
    </span>{
        <span class="hljs-comment">//</span>
        $sensor = Sensor::find($id);
        <span class="hljs-comment">//dd($sensors);</span>
        <span class="hljs-comment">//dd($sensors-&gt;vol_1*1);</span>
        $back1[<span class="hljs-number">0</span>][<span class="hljs-number">0</span>]= <span class="hljs-string">"0"</span>;
        $back1[<span class="hljs-number">0</span>][<span class="hljs-number">1</span>]= <span 