/*
    ARDUINO RGB LED TUTORIAL: Loop RGB
    By: TheGeekPub.com
    More Arduino Tutorials: https://www.thegeekpub.com/arduino-tutorials/
*/
  
const int PIN_RED1   = 4; //Red LED on pin 4
const int PIN_GREEN1 = 3; //Green LED on pin 3
const int PIN_BLUE1  = 2; //Blue LED on Pin 2
const int PIN_RED2   = 7; //Red LED on pin 7
const int PIN_GREEN2 = 6; //Green LED on pin 6
const int PIN_BLUE2  = 5; //Blue LED on Pin 5
const int PIN_RED3   = 10; //Red LED on pin 10
const int PIN_GREEN3 = 9; //Green LED on pin 9
const int PIN_BLUE3  = 8; //Blue LED on Pin 8
int led = 6;           // the PWM pin the LED is attached to
int brightness = 0;    // how bright the LED is
int fadeAmount = 5;    // how many points to fade the LED by
  

  
/* This function "Set Color" will set the color of the LED
   rather than doing it over and over in the loop. */
void setColor(int R, int G, int B) {
  analogWrite(PIN_RED1,   255);
  analogWrite(PIN_GREEN1, 1);
  analogWrite(PIN_BLUE1,  255);
  analogWrite(PIN_RED2,   1);
  analogWrite(PIN_GREEN2, 255);
  analogWrite(PIN_BLUE2,  1);
  analogWrite(PIN_RED3,   1);
  analogWrite(PIN_GREEN3, 1);
  analogWrite(PIN_BLUE3,  255);
  analogWrite(led, brightness); // set the brightness of led

}
  
void setup() {
  //set all three pins to output mode
  pinMode(PIN_RED1,   OUTPUT);
  pinMode(PIN_GREEN1, OUTPUT);
  pinMode(PIN_BLUE1,  OUTPUT);
  pinMode(PIN_RED2,   OUTPUT);
  pinMode(PIN_GREEN2, OUTPUT);
  pinMode(PIN_BLUE2,  OUTPUT);
  pinMode(PIN_RED3,   OUTPUT);
  pinMode(PIN_GREEN3, OUTPUT);
  pinMode(PIN_BLUE3,  OUTPUT);
  
}
  
void loop() {
 
  // set the colors of the LED
  // Loop through Red-Green-Blue and repeat
  setColor(255, 0, 0); //set LED to Red
  delay(500);
  setColor(0, 255, 0); //set LED to Green
  delay(500);
  setColor(0, 0, 255); //set LED to Blue
  delay(500);

}