// Farbe rot an Pin 6 
int LEDrot = 6; 

// Farbe gruen an Pin 5 
int LEDgruen = 5; 

// Farbe blau an Pin 3 
int LEDblau = 3; 

void setup() 
{   
  pinMode(LEDrot, OUTPUT);
  pinMode(LEDgruen, OUTPUT); 
  pinMode(LEDblau, OUTPUT); 
} 

void loop() 
{ 
  analogWrite(LEDrot, 255); 
  delay(1000); 
  analogWrite(LEDrot, 0); 
  analogWrite(LEDblau, 255);
  delay(1000); 
  analogWrite(LEDblau, 0);  
  analogWrite(LEDgruen, 255); 
  delay(1000); 
  analogWrite(LEDgruen, 0); 
}