const int ledPinGroen = 25;
const int ledPinOranje = 26;
const int ledPinRood = 27;

void setup() {
  pinMode(ledPinGroen, OUTPUT);
  pinMode(ledPinOranje, OUTPUT);
  pinMode(ledPinRood, OUTPUT);

  delay(5);
  digitalWrite(ledPinGroen, HIGH);
  delay(1000);
  digitalWrite(ledPinGroen, LOW);
  delay(50);
  digitalWrite(ledPinOranje, HIGH);
  delay(1000);
  digitalWrite(ledPinOranje, LOW);
  delay(50);
  digitalWrite(ledPinRood, HIGH);
}

void loop() {

}