Differences

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--- the_ledtester_class [2018/08/11 00:57] – frchris
+++ the_ledtester_class [2018/08/11 01:10] (current) – frchris
@@ Line 10: / Line 10: @@
 public class LEDTester
 {
-     public LED pin1;
+    public LED pin1;
     //unit of time, in milliseconds
@@ Line 19: / Line 19: @@
         String s = "SOS SOS SOS";
-        //
+//
-        if (args.length > 0 && args[0] != null && !args[0].equals("") )
+          if ( args.length > 0 && args[0] != null && !args[0].equals ("") )
             s = args[0];
         lt.flashMorse(s);
         lt.finalize();
     }
     /*
      * create a new LED instance
@@ Line 39: / Line 40: @@
         pin1 = p;
     }
     /*
      * Flashes the LED 10 times
      */
     public void flash10Times() {
-         for(int i = 0; i < 10; i++) {
+        for(int i = 0; i < 10; i++) {
             pin1.flash(200);
-            try {  }
+            try { Thread.sleep (200); } catch (InterruptedException e) {}
         }
     }
     /*
-     * create a new LED instance
+     * Sends the morse code using the LED.
      */
-    public LEDTester() {
+    public void flashMorse(String msg) {
-        this(new LED());
+        char [] morse = StringToMorse.translate(msg).toCharArray();
+        // . = 1, - = 3, intra-char = 1, inter-char = 3, space = 7.",
+        for (char atom : morse) {
+                if (atom == '.') {
+                    pin1.flash(UNIT);
+                } else if (atom == '-') {
+                    pin1.flash(3*UNIT);
+                } else if (atom == '/') {   // inter-symbol gap
+                    sleep (1);   // plus one leading and one trailing == 3
+                } else {
+                    // must be a space
+                    sleep (5);   // plus one leading and one trailing == 7
+                }
+                sleep (1);   // common gap
+        }
+    }
+    /*
+     * Wait units times the defined unit of time
+     */
+    private void sleep(int units) {
+        try {
+            Thread.sleep(units*UNIT);
+        } catch (InterruptedException e)
+        {
+        }
     }
     protected void finalize(){
         pin1.finalize();
     }
 }
 </file>