Arduino 1.2

#define LOW_LVL 0

#define ER_MIDDLE_LVL 85

#define OLD_MIDDLE_LVL 170

#define HIGH_LVL 255

void setup(){

pinMode(6, OUTPUT);

pinMode(5, OUTPUT);

}

void loop(){
LedLevel(5, LOW_LVL, HIGH_LVL);

LedLevel(5, ER_MIDDLE_LVL, OLD_MIDDLE_LVL);

LedLevel(5, OLD_MIDDLE_LVL, ER_MIDDLE_LVL);

LedLevel(5, HIGH_LVL, LOW_LVL);

}

void LedLevel(int ledPin, int lowLvl, int highLvl){

analogWrite(ledPin, lowLvl);

analogWrite(ledPin + 1, highLvl);

delay(400);

}