Added Processing examples

examples/pro_serialSimpleWriteRGB/pro_serialSimpleWriteRGB.pde

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+/*
+  Originally created by smitec08
+  http://www.instructables.com/id/Controlling-an-RGB-Led-with-Arduino-and-Processing/
+*/
+import processing.serial.*;
+
+PImage img;	
+Serial myPort;
+
+void setup() {
+
+  //set these to the size of the image
+  size(512,512);
+
+  //this is the name of your image file saved in the data folder in your
+  //processing folder see processing.org for help
+
+  img = loadImage("RGBR.png");
+
+  //the [0] may be [another number] on your computer
+  myPort = new Serial(this, "/dev/ttyUSB1", 9600);
+
+}
+
+void draw() {
+  background(0);
+  image(img,0,0);
+  img.loadPixels();
+}
+
+void mousePressed() 
+{
+ myPort.write("CL");
+ myPort.write(int(red(img.pixels[mouseX+mouseY*img.width])));
+ myPort.write(int(green(img.pixels[mouseX+mouseY*img.width]))); 
+ myPort.write(int(blue(img.pixels[mouseX+mouseY*img.width]))); 
+}
+
+
+/*
+
+//Arduino code
+// Output
+int redPin   = 5;
+int greenPin = 9;
+int bluePin  = 6;
+
+long int inByte; 
+int wait = 10; //10ms
+
+void setup()
+{
+  pinMode(redPin,   OUTPUT);   // sets the pins as output
+  pinMode(greenPin, OUTPUT);   
+  pinMode(bluePin,  OUTPUT);
+  
+  analogWrite(redPin, 255);
+  analogWrite(greenPin, 255);
+  analogWrite(bluePin, 255);
+
+  Serial.begin(9600); 
+}
+
+
+void outputColour(int red, int green, int blue) {
+  analogWrite(redPin,255 - red);
+  analogWrite(bluePin,255 - blue);
+  analogWrite(greenPin,255 - green);    
+}
+
+
+int* getColour() {
+  int* colour;
+  int i;
+  
+  i = 0;
+  
+  //for some reason it only works if we put a dud value between the C and 
+  // the R value
+  while (i < 4)
+  {
+    if (Serial.available() > 0) {
+        colour[i] = Serial.read();
+        i++;
+    }
+  }
+  
+  return colour;
+}
+
+// Main program
+void loop()
+{  
+  if (Serial.available() > 0) {
+    // get incoming byte:
+    inByte = Serial.read();
+    
+     if (inByte == 'C') {
+        int* one;
+      one =  getColour();
+      
+      //1 2 3 not 0 1 2 due to the dud value
+      outputColour(one[1],one[2],one[3]);    
+       
+    } 
+  }
+  
+  delay(wait);
+}
+*/
+