Working nicely

src/main/java/com/monchromateur/Controller.java

@@ -12,36 +12,39 @@ public class Controller {
 
     @FXML
     private LineChart result;
-    //hide result
-
 
     @FXML
-    protected void plotDatas() {
+    protected void plotDatas() throws InterruptedException {
         SerialPort comPort = SerialPort.getCommPort("COM3");
-        comPort.setComPortParameters(2000000, 8, 1, 0);
-        //comPort.setComPortTimeouts(SerialPort.TIMEOUT_READ_SEMI_BLOCKING, 0, 0);
+        comPort.setComPortParameters(2000000, 8, SerialPort.ONE_STOP_BIT, SerialPort.NO_PARITY);
+        comPort.setComPortTimeouts(SerialPort.TIMEOUT_READ_SEMI_BLOCKING, 0, 0);
         comPort.openPort();
+        //Arduino restart when openPort
+        Thread.sleep(2000);
+
+        //Starting message to arduino
+        byte[] WriteByte = new byte[1];
+        WriteByte[0] = 65; //send A
+        if (comPort.writeBytes(WriteByte, 1) == 1) {
+            System.out.println("Start command sent");
+        } else {
+            System.out.println("Error sending start command");
+        }
+
 
-        //TODO Send a request to the Arduino to start the acquisition
-        //comPort.writeBytes("r".getBytes(), 1);
         NumberAxis xAxis = new NumberAxis();
         xAxis.setLabel("Years");
         NumberAxis yAxis = new NumberAxis();
         yAxis.setLabel("No.of schools");
         XYChart.Series series = new XYChart.Series();
         series.setName("Absorbance en fonction de la longueur d'onde");
 
+        //read data from arduino
         int Y[] = new int[400];
         for (int i = 0; i < 400; i++) {
-
             StringBuilder data = new StringBuilder();
-            //TODO : read bytes one by one from com3 if 10 => new variable, if 13 => ignore, if 0 => wait until new byte
             byte[] readBuffer = new byte[1];
-            //convert buffer to int
             comPort.readBytes(readBuffer, readBuffer.length);
-            //System.out.println(readBuffer[0]);
-
-            //System.out.println(" ");
             while (readBuffer[0] != 10 && data.length() < 3 && data.length() >= 0) {
                 if (readBuffer[0] == 0) {
                 }
@@ -51,17 +54,17 @@ else if(readBuffer[0] >= 48 && readBuffer[0] <= 57){
                 }
                 comPort.readBytes(readBuffer, readBuffer.length);
             }
-                System.out.println(data);
                 if (data.length() > 0) {
                     Y[i] = parseInt(data.toString());
+                    System.out.println(i+" Data received: " + Y[i]);
                 }
         }
 
         for(int i=400; i<800; i+=1){
             series.getData().add(new XYChart.Data(i, Y[i-400]));
         }
 
-        //add linechar to result
+        //put data in chart
         result.getData().clear();
         result.getData().add(series);
         result.setCreateSymbols(false); //hide dots