function monitoramento() {
    var data = new google.visualization.DataTable();
    var data = google.visualization.arrayToDataTable([
      ['Hora','Temperatura'],
      <?php
      $QueryMonitoramento = "SELECT * FROM sensores ";
      $resultMonitoramento = $conn->query($QueryMonitoramento);
      while($rowMonitoramento = mysqli_fetch_assoc($resultMonitoramento)){
        echo "['".$rowMonitoramento["sen_log"]."', ".$rowMonitoramento["sen_temperatura"]."],";
      }
      ?>
      ]);

    var options = {
      hAxis: {
        title: 'Horario',
        format: 'h:mm a',
        viewWindow: {
          min: [7, 30, 0],
          max: [17, 30, 0]
        }
      },
      vAxis: {
        title: 'Rating (scale of 1-10)'
      }
    };

    var chart = new google.visualization.LineChart(
      document.getElementById('monitoramento'));
    chart.draw(data, options);
  }