const int LED1R   = 12;
const int LED1G = 11;
const int LED1B  = 10;

const int LED2R   = 9;
const int LED2G = 8;
const int LED2B  = 7;

void setup() {
  pinMode(LED1R,   OUTPUT);
  pinMode(LED1G, OUTPUT);
  pinMode(LED1B,  OUTPUT);
  pinMode(LED2R,   OUTPUT);
  pinMode(LED2G, OUTPUT);
  pinMode(LED2B,  OUTPUT);
}

void loop() {
  analogWrite(LED1R,   0);
  analogWrite(LED1G, 0);
  analogWrite(LED1B,  255);
  
  analogWrite(LED2R, 255);
  analogWrite(LED2G, 0);
  analogWrite(LED2B,  0);

  delay(300);

  analogWrite(LED1R,   255);
  analogWrite(LED1G, 0);
  analogWrite(LED1B,  0);
  
  analogWrite(LED2R, 0);
  analogWrite(LED2G, 0);
  analogWrite(LED2B,  255);

  delay(300);

  
}