#define LED_RED 13             //赤LED PIN番号
#define LED_BLUE 9           //青LED PIN番号
#define LED_GREEN 12          //緑LED PIN番号
#define LED_RED_TIME 5        //赤LED 周期
#define LED_BLUE_TIME 6       //青LED 周期
#define LED_GREEN_TIME 7      //緑LED 周期

int red = 0, blue = 0, green = 0;
int f_red = 0, f_blue = 0, f_green = 0;
// 初期化
void setup() {

  // LEDのピンを出力に
  pinMode(LED_RED, OUTPUT);
  pinMode(LED_BLUE, OUTPUT);
  pinMode(LED_GREEN, OUTPUT);
}

// メインループ
void loop() {

  if (f_red == 0) {
    red = red + LED_RED_TIME;
    if (red >= 250) {
      f_red = 1;
    }
  }
  else {
    red = red - LED_RED_TIME;
    if (red <= 0) {
      f_red = 0;
    }
  }
  analogWrite(LED_RED, red);
delay(50);

  if (f_blue == 0) {
    blue = blue + LED_BLUE_TIME;
    if (blue >= 200) {
      f_blue = 1;
      blue=200;
    }
  }
  else {
    blue = blue - LED_BLUE_TIME;
    if (blue <= 0) {
      f_blue = 0;
      blue=0;
    }
  }
  analogWrite(LED_BLUE, blue);
delay(30);

  if (f_green == 0) {
    green = green + LED_GREEN_TIME;
    if (green >= 200) {
      f_green = 1;
      green=200;
    }
  }
  else {
    green = green - LED_GREEN_TIME;
    if (green <= 0) {
      f_green = 0;
            green=0;
    }
  }
  analogWrite(LED_GREEN, green);
delay(20);
}