int groen = 13; int oranje = 11; int rood = 10; int knop = 12; int toestand = 0; void setup() { pinMode(groen, OUTPUT); pinMode(rood, OUTPUT); pinMode(oranje, OUTPUT); pinMode(knop,INPUT); } void loop() { toestand = digitalRead(knop); if (toestand == HIGH) { digitalWrite(rood,HIGH); } else { digitalWrite(rood,LOW); digitalWrite(groen,HIGH); delay(1000); digitalWrite(groen,LOW); digitalWrite(oranje,HIGH); delay(1000); digitalWrite(oranje,LOW); } }