#define BLUE 3
#define GREEN 5
#define RED 6

int redValue;
int greenValue;
int blueValue;

void setup(){
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
}

void loop(){
  //RGBの単色を点滅させる
  analogWrite(RED, 255);
  delay(3000);

  analogWrite(RED, 0);
  analogWrite(GREEN, 255);
  delay(3000);

  //RGBの値を調整して色々な色を作成する
  redValue = 255;
  greenValue = 0;
  blueValue = 0;
  for(int i = 0; i < 255; i += 1){
    redValue -= 1;
    greenValue += 1;
    color(redValue, greenValue, blueValue);
  }

  redValue = 0;
  greenValue = 255;
  blueValue = 0;
  for(int i = 0; i < 255; i += 1){
    greenValue -= 1;
    blueValue += 1;
    color(redValue, greenValue, blueValue);
  }
}

void color(int r, int g,int b){
  analogWrite(RED, r);
  analogWrite(GREEN, g);
  analogWrite(BLUE, b);
  delay(10);
}