//-------------------------------------------------------------------
#define PIN_RGB_ROT        9
#define PIN_LED_RGB_GRUEN  6
#define PIN_LED_RGB_BLAU  10

//-------------------------------------------------------------------
void setTastgrad_RGBLED(int aROT, int aGRUEN, int aBLAU)
{
  analogWrite(PIN_RGB_ROT, aROT);
  analogWrite(PIN_LED_RGB_GRUEN, aGRUEN);
  analogWrite(PIN_LED_RGB_BLAU, aBLAU);
}

//-------------------------------------------------------------------
void setup() {
  // RGB-LED ausschalten:
  setTastgrad_RGBLED(0, 0, 0);
}

//-------------------------------------------------------------------
void loop() {
  //---
  // RGB-LED in der Farbe ROT ein- und ausblenden:
  for (int t = 0; t <= 255; t++) {
    setTastgrad_RGBLED(t, 0, 0);
    delay(10);
  }
  for (int t = 255; t >= 0; t--) {
    setTastgrad_RGBLED(t, 0, 0);
    delay(10);
  }

  //---
  // RGB-LED in der Farbe GRUEN ein- und ausblenden:
  for (int t = 0; t <= 255; t++) {
    setTastgrad_RGBLED(0, t, 0);
    delay(10);
  }
  for (int t = 255; t >= 0; t--) {
    setTastgrad_RGBLED(0, t, 0);
    delay(10);
  }

  //---
  // RGB-LED in der Farbe BLAU ein- und ausblenden:
  for (int t = 0; t <= 255; t++) {
    setTastgrad_RGBLED(0, 0, t);
    delay(10);
  }
  for (int t = 255; t >= 0; t--) {
    setTastgrad_RGBLED(0, 0, t);
    delay(10);
  }
}