Serial Interface & RGB LED a simple sketch to randomly change colors of RGB LED and write out Serial output.

serial_RGB_LED.ino

/**
 * a simple sketch to randomly change colors of RGB LED
 * and write out Serial output.
 */
 
 int redPin = 11;
 int bluePin = 10;
 int greenPin = 9;

//setup
void setup(){
	Serial.begin(9600);
}

//loop
void loop(){
	int valRedPin = random(0, 256);
  	int valBluePin = random (0, 256);
   	int valGreenPin =  random (0, 256);
   
   	//write to RGB LED
   	analogWrite(redPin, valRedPin);
   	analogWrite(greenPin, valGreenPin);
   	analogWrite(bluePin, valBluePin);
   
	//send Serial output to PC
   	Serial.print(analogRead(redPin));
   	Serial.print(",");
   	Serial.print(analogRead(greenPin));
   	Serial.print(",");
   	Serial.println(analogRead(bluePin));
}