uint16_t FadeValue = 0;

const uint8_t RedPIN = 15;
const uint8_t GreenPIN = 13;
const uint8_t YellowPIN = 12;
const uint8_t BluePIN = 14;

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

void loop(){

//RED
  while(FadeValue != 120){
    FadeValue += 1;
    analogWrite(RedPIN, FadeValue);
    delay(30);
    Serial.println(FadeValue);
  }
  while(FadeValue != 0){
    FadeValue -= 1;
    analogWrite(RedPIN, FadeValue);
    delay(30);
    Serial.println(FadeValue);
  }

//GREEN
  while(FadeValue != 40){
    FadeValue += 1;
    analogWrite(GreenPIN, FadeValue);
    delay(90);
    Serial.println(FadeValue);
  }
  while(FadeValue != 0){
    FadeValue -= 1;
    analogWrite(GreenPIN, FadeValue);
    delay(90);
    Serial.println(FadeValue);
  }

//YELLOW
  while(FadeValue != 120){
    FadeValue += 1;
    analogWrite(YellowPIN, FadeValue);
    delay(30);
    Serial.println(FadeValue);
  }
  while(FadeValue != 0){
    FadeValue -= 1;
    analogWrite(YellowPIN, FadeValue);
    delay(30);
    Serial.println(FadeValue);
  }

//BLUE
while(FadeValue != 30){
  FadeValue += 1;
    analogWrite(BluePIN, FadeValue);
    delay(120);
    Serial.println(FadeValue);
  }
  while(FadeValue != 0){
    FadeValue -= 1;
    analogWrite(BluePIN, FadeValue);
    delay(120);
    Serial.println(FadeValue);
  }
}