світлофор

int red = 2;

int yellow = 3;

int green = 4;

void setup() {

pinMode(red, OUTPUT);

pinMode(yellow, OUTPUT);

pinMode(green, OUTPUT);

}

void loop() {

digitalWrite(red, HIGH);

delay(5000);

digitalWrite(red, LOW);

digitalWrite(yellow, HIGH);

delay(1000);

digitalWrite(yellow, LOW);

digitalWrite(green, HIGH);

delay(5000);

digitalWrite(green, LOW);

digitalWrite(yellow, HIGH);

delay(2000);

digitalWrite(yellow, LOW);

}