void setup() {
  pinMode(13, OUTPUT); // Red LED
  pinMode(12, OUTPUT); // Yellow LED
  pinMode(11, OUTPUT); // Green LED
}
void loop() {
  digitalWrite(11, HIGH); // Green light on
  delay(5000); // Wait 5 seconds
  digitalWrite(11, LOW);
  digitalWrite(12, HIGH); // Yellow light on
  delay(2000); // Wait 2 seconds
  digitalWrite(12, LOW);
  digitalWrite(13, HIGH); // Red light on
  delay(5000); // Wait 5 seconds
  digitalWrite(13, LOW);
}
Kopyala