void setup() {
// PIN 2 COLOR VERDE
// PIN 3 COLOR AMARILLO
// PIN 4 COLOR ROJO
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly
digitalWrite(2, HIGH);
delay((500));
digitalWrite(2, LOW);
delay(500);
digitalWrite(3, HIGH);
delay((500));
digitalWrite(3, LOW);
delay(500);
digitalWrite(4, HIGH);
delay((500));
digitalWrite(4, LOW);
delay(500);
}