text: import React, { Component } from 'react';
  import logo from './logo.svg';
  import './App.css';
  import  SensorData from './SensorData';
  
  class App extends Component {
    render() {
      return (
        <div className="App">
        <link href="//cdn.muicss.com/mui-0.9.39/css/mui.min.css" rel="stylesheet" type="text/css" />
        <script src="//cdn.muicss.com/mui-0.9.39/js/mui.min.js"></script>
          <header className="App-header">
            <img src={logo} className="App-logo" alt="logo" />
            <h1 className="App-title">Welcome to React Sensor Visualization.</h1>
          </header>
          <div className="App-intro">
            <SensorData />
          </div>
        </div>
      );
    }
  }
  
  export default App;
  