int rood = 10;
int blauw = 9;
int groen = 8;

void setup() {
  // put your setup code here, to run once:
  pinMode(rood, OUTPUT);
  pinMode(blauw, OUTPUT);
  pinMode(groen, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(rood, HIGH);
  delay(500);
  digitalWrite(rood, LOW);
  delay(500);
  digitalWrite(rood, HIGH);
  delay(1500);
  digitalWrite(rood, LOW);
  delay(500);
  digitalWrite(rood, HIGH);
  delay(1500);
  digitalWrite(rood, LOW);
  delay(500);

  digitalWrite(blauw, HIGH);
  delay(1500);
  digitalWrite(blauw, LOW);
  delay(500);
  digitalWrite(blauw, HIGH);
  delay(500);
  digitalWrite(blauw, LOW);
  delay(500);
  digitalWrite(blauw, HIGH);
  delay(500);
  digitalWrite(blauw, LOW);
  delay(500);

  digitalWrite(groen, HIGH);
  delay(500);
  digitalWrite(groen, LOW);
  delay(500);
  digitalWrite(groen, HIGH);
  delay(500);
  digitalWrite(groen, LOW);
  delay(500);
  digitalWrite(groen, HIGH);
  delay(500);
  digitalWrite(groen, LOW);
  delay(500);
  digitalWrite(groen, HIGH);
  delay(1500);
  digitalWrite(groen, LOW);
  delay(500);
}