int RedPIN=3;
int GreenPIN=6;
int BluePIN=7;
int brightness= 200;  // setja birtustig frá 0 - 244.
int RedPIN2=10;
int GreenPIN2=8;
int BluePIN2=9;


void setup() {
  
Serial.begin (9600);  // Setja upp serial tengingu.
pinMode (RedPIN,OUTPUT);
pinMode (GreenPIN,OUTPUT);
pinMode (BluePIN,OUTPUT);

pinMode (RedPIN2,OUTPUT);
pinMode (GreenPIN2,OUTPUT);
pinMode (BluePIN2,OUTPUT);

}

void loop() {

analogWrite (RedPIN,brightness);  //Turn off red pin
delay (500);
analogWrite (RedPIN,0);  //Turn off red pin
delay (500);


analogWrite (GreenPIN,brightness);  //Turn off Green pin
delay (500);
analogWrite (GreenPIN,0);  //Turn off red pin
delay (500);


analogWrite (BluePIN,brightness);  //Turn off Green pin
delay (500);
analogWrite (BluePIN,0);  //Turn off red pin
delay (500);




analogWrite (RedPIN2,brightness);  //Turn off red pin
delay (500);
analogWrite (RedPIN2,0);  //Turn off red pin
delay (500);

analogWrite (GreenPIN2,brightness);  //Turn off Green pin
delay (500);
analogWrite (GreenPIN2,0);  //Turn off red pin
delay (500);

analogWrite (BluePIN2,brightness);  //Turn off Green pin
delay (500);
analogWrite (BluePIN2,0);  //Turn off red pin
delay (30);


}