#define RED 13 
#define YELLOW 12 
#define GREEN 8 

void setup() {
  // put your setup code here, to run once:
  pinMode(RED, OUTPUT); 
  pinMode(YELLOW, OUTPUT);
  pinMode(GREEN, OUTPUT); 
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:

  digitalWrite(RED, HIGH); 
  Serial.println("Ampel is Rot");
  delay(5000); 
  digitalWrite(RED, LOW); 

  digitalWrite(YELLOW, HIGH);
  Serial.println("Ampel is Gelb");
  delay(2000); 
  digitalWrite(YELLOW, LOW);

  digitalWrite(GREEN, HIGH); 
  Serial.println("Ampel is Grün");
  delay(5000);
  digitalWrite(GREEN, LOW); 
}