Arduino and JavaFX

[Derek Smiths]

Hello! I'm working on a project that involves the arduino, along with a couple sensors, and Java. I'm constructed a very primitive looking JavaFX application that will read data from the arduino sensors in realtime and graph that data in charts. I've scoured the internet looking for resources and all I've really been able to find examples of other people's projects. This is very new territory for me and while it is possible to copy and past other's work, I was hoping someone might have a recommendation for a text that discusses port communication with java.

I've downloaded all the necessary libraries to communicate with the arudino and serial port.

[Derek Smiths]

Posted below is my code so far. Once I started to work on the part involving the SerialPort, the code no longer works. I've tried taking it a step at at time, but I'm now running into the issue of displaying the serial data on the chart as the data is read from serial port. I've got several errors loading displaying, but I believe the brunt of the issue is coming from the ChangeListener event that is part of the solar tab. Any help you could offer would be great. I'm getting a little frustrated, because I've only found one legitimate source of information and it has helped but at this point in the program, I am veering off into different territory than the walkthrough I've been using.

public class MonitorFX extends Application {
    private final SerialComm serial = new SerialComm();
    private ChangeListener<String> listener;
    private final BooleanProperty connection=new SimpleBooleanProperty(false);
    
    //Data Chart Variables//
    private XYChart.Series<String, Number> solarSeries;
    private XYChart.Series<Number, Number> temperatureSeries;
    private XYChart.Series<Number, Number> avgTemperatureSeries;
    //Data Chart Ranges//
    private final int tMax = 5;

    //Bar Graph To Display Solar Panel Data
    private CategoryAxis xAxis;
    private NumberAxis yAxis;
  
    @Override
    public void start(Stage primaryStage) {
        
        String[] time = {"1","2","3","4","5","6","7","8","9","10","11","12", "13", "14"};
        String[] days = {"Mon", "Tue", "Wed", "Thurs", "Fri", "Sat", "Sun"};
        xAxis = new CategoryAxis();
        yAxis = new NumberAxis();      
              

    //Data Chart Lines//
        
    //////////////PANES///////////////
        TabPane tabPane = new TabPane();
        
    //Home Tab And Home Pane Contents//
        Tab homeTab = new Tab("Main");
        BorderPane homePane = new BorderPane();
        homePane.setStyle("-fx-background-color: linear-gradient(from 25% 25% to 100% 100%, #BCD7BC, #81A981)");
        HBox homeBox = new HBox();
        homeBox.setPadding(new Insets(40,8,8,8));
        homeBox.setAlignment(Pos.CENTER);
        Text welcomeText = new Text("Weather Monitoring System");
        welcomeText.setFont(Font.font("Charter", 30));
        welcomeText.setId("welcometext");
        homeBox.getChildren().add(welcomeText);
        homePane.setTop(homeBox);
        homeTab.setId("hometab");
        homeTab.setContent(homePane);
    
    ///Solar Tab And Solar Pane Contents///
        Tab solarTab = new Tab("Solar Panel");       
        BorderPane solarPane = new BorderPane();
    ///Solar Pane Buttons///
        Button startSolarBtn = new Button();
        startSolarBtn.setText("Start");
        startSolarBtn.setId("startsolarbutton");
        startSolarBtn.setOnAction(new EventHandler<ActionEvent>() {
                        
            @Override
            public void handle(ActionEvent event) {
                System.out.println("Hello World!");
            }
        });
           
        Button stopSolarBtn = new Button();
        stopSolarBtn.setId("stopsolarbutton");
        stopSolarBtn.setText("Stop");
        
    ///Solar Bar Chart///
        CategoryAxis xHoursAxis = new CategoryAxis();
        xHoursAxis.setLabel("HOURS");
        xHoursAxis.setId("solarlabel");
       // xHoursAxis.setCategories(FXCollections.<String>observableArrayList(time));
        NumberAxis yPowerAxis = new NumberAxis();
        yPowerAxis.setAutoRanging(true);
        yPowerAxis.setLabel("POWER");
        LineChart<String,Number> solarChart = new LineChart(xHoursAxis, yPowerAxis);
        solarChart.getData().add(solarSeries);
            
    //EventListener To Read Sensor Data To Chart
        listener = new ChangeListener<String>() {         
            @Override
            public void changed(ObservableValue<? extends String> ov, String t, String t1) {
                Platform.runLater(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            String[] data=t1.split(" ;");
                            if(data.length==2) {
                                long time=new Long(data[0]);
                                solarSeries.getData().add(new Data(time,new Double(data[1])));
                            }
                         
                    } catch(NumberFormatException nfe) {
                            System.out.println("NFE: "+t1+" "+nfe.toString());
                        }
                    }
                });
             }
        
        };
        serial.getLine().addListener(listener);
        
        solarPane.setCenter(solarChart);
        solarPane.setId("solarcolor");
        solarTab.setId("solartab");
        solarTab.setContent(solarPane);
        solarPane.setBottom(horizontalBox(startSolarBtn, stopSolarBtn));
        
    ///Temperature Tab And Temperature Pane Contents///
        Tab tempTab = new Tab("Temperature");
        BorderPane temperaturePane = new BorderPane();
        GridPane tempChartPane = new GridPane();
  
    ///Temperature Buttons////
        Button startTempBtn = new Button();
        startTempBtn.setText("Start");
        startTempBtn.setId("starttempbutton");
        
        Button stopTempBtn = new Button();
        startTempBtn.setText("Stop");
        startTempBtn.setId("stoptempbutton");        
    ///Temperature Chart Definitions///
        NumberAxis yTemperatureAxis = new NumberAxis();
        yTemperatureAxis.setAutoRanging(true);
        yTemperatureAxis.setLabel("TEMPERATURE");
        
        CategoryAxis xDaysAxis = new CategoryAxis();
        xDaysAxis.setLabel("DAY");
        xDaysAxis.setCategories(FXCollections.<String>observableArrayList(days));
        
        LineChart tempLineChart = new LineChart(xHoursAxis, yTemperatureAxis); //To track current temp 24-hour period, record each hour
        BarChart averageTempChart = new BarChart(xDaysAxis, yTemperatureAxis);  //To display a chart of the past 5 day temps
        
        tempChartPane.add(tempLineChart, 1,1);
        tempChartPane.add(averageTempChart,2,1);
        temperaturePane.setId("temperaturecolor");
        temperaturePane.setCenter(tempChartPane);
        temperaturePane.setBottom(horizontalBox(startTempBtn, stopTempBtn));
        
        tempTab.setId("temperaturetab");
        tempTab.setContent(temperaturePane);
        
    ///Add Tabs To Tabs Pane///
        tabPane.getTabs().addAll(homeTab, solarTab, tempTab);
        
    ///Serial Connection///
        serial.getLine().addListener(listener);
    ///Scene Pane/// 
        BorderPane mainPane = new BorderPane();
        mainPane.setCenter(tabPane);
        
        
        Scene scene = new Scene(mainPane, 800, 500);
        scene.getStylesheets().add("myStyle.css");
        
        primaryStage.setTitle("");
        primaryStage.setScene(scene);
        primaryStage.initStyle(StageStyle.TRANSPARENT);
        primaryStage.show();
        
       startSerial();
    }

    private void startSerial(){
        serial.connect();
 
        connection.set(!serial.getPortName().isEmpty());
    }
    
    static Node horizontalBox(Button a, Button b) {
        HBox buttonBox = new HBox(5);
        buttonBox.setPadding(new Insets(8,8,8,8));
        buttonBox.setAlignment(Pos.CENTER);
        buttonBox.getChildren().addAll(lighting(a), lighting(b));
        
        return buttonBox;
    }
    
    static Node lighting(Button b) {
        Button button = b;
        
        Distant light = new Distant();
        light.setAzimuth(135.0f);
        
        Lighting l = new Lighting();
        l.setLight(light);
        l.setSurfaceScale(5.0f);

        b.setEffect(l);
        return b;
    }
    
    public static void main(String[] args) {
        launch(args);
    }
    
}