int pin_grn = 19;
  int pin_gelb = 25;
  int pin_rot = 27;

  int verz = 2000;
  int stop = 5000;
  int go = 4000;
  int blink = 500;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");

pinMode(pin_grn, OUTPUT);
pinMode(pin_rot, OUTPUT);
pinMode(pin_gelb, OUTPUT);

}


void loop() {


    digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,1);
  delay(go);

      digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,0);
  delay(blink);

      digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,1);
  delay(blink);
      digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,0);
  delay(blink);

      digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,1);
  delay(blink);

       digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,0);
  delay(blink);

      digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,1);
  delay(blink);
      digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,0);
  delay(blink);

      digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,0);
  digitalWrite(pin_grn,1);
  delay(blink);
 

   digitalWrite(pin_grn,0);
  digitalWrite(pin_rot,1);
  digitalWrite(pin_gelb,0);
  delay(stop);

      digitalWrite(pin_grn,0);
     digitalWrite(pin_rot,0);
  digitalWrite(pin_gelb,1);
  delay(go);

    digitalWrite(pin_grn,0);
  digitalWrite(pin_rot,1);
  digitalWrite(pin_gelb,0);
  delay(stop); 
  }