Rotabit-Arduino-Millis.ino

int contador = 0;
int pin1 = 13;
int pin2 = 12;
int pin3 = 11;
int pin4 = 10;

void setup() {
  pinMode(pin1, OUTPUT);
  pinMode(pin2, OUTPUT);
  pinMode(pin3, OUTPUT);
  pinMode(pin4, OUTPUT);
}

void loop() {
  digitalWrite(pin1, HIGH); digitalWrite(pin2, LOW);  digitalWrite(pin3, LOW);  digitalWrite(pin4, LOW);
  delay(1000);

  digitalWrite(pin1, LOW);  digitalWrite(pin2, HIGH); digitalWrite(pin3, LOW);  digitalWrite(pin4, LOW);
  delay(1000);

  digitalWrite(pin1, LOW); digitalWrite(pin2, LOW);  digitalWrite(pin3, HIGH);  digitalWrite(pin4, LOW);
  delay(1000);

  digitalWrite(pin1, LOW); digitalWrite(pin2, LOW);  digitalWrite(pin3, LOW);  digitalWrite(pin4, HIGH);
  delay(1000);

}