void setup() {
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
 digitalWrite(13, HIGH);
 delay(5000);           // dioda czerwona
 digitalWrite(13, LOW);

 digitalWrite(12, HIGH);
 delay(2000);           // dioda żółta 
 digitalWrite(12, LOW);

 digitalWrite(13, HIGH);
 delay(300);
 digitalWrite(13, LOW);
 delay(200);
 digitalWrite(13, HIGH);
 delay(300);            //miganie zielonej diody przed przejsciem na czerwone
 digitalWrite(13, LOW);
 delay(200);
 digitalWrite(13, HIGH);
 delay(300);
 digitalWrite(13, LOW);
 delay(200);

 digitalWrite(11, HIGH);
 delay(7000);           //dioda zielona
 digitalWrite(11, LOW);
}