مشروع 16: إشارة المرور بثلاثة ليدات

int red = 8, yellow = 9, green = 10;

void setup() {
  pinMode(red, OUTPUT); pinMode(yellow, OUTPUT); pinMode(green, OUTPUT);
}

void loop() {
  digitalWrite(red, HIGH); delay(3000); digitalWrite(red, LOW);
  digitalWrite(green, HIGH); delay(3000); digitalWrite(green, LOW);
  digitalWrite(yellow, HIGH); delay(1000); digitalWrite(yellow, LOW);
}