Arduino Semáforo

sema.ino

/**
 * Author: Samuel T. C. Santos
 * Date: 23 Out 2016
 */

int const SEMA_CAR_GREEN = 2;
int const SEMA_CAR_YELLOW = 3;
int const SEMA_CAR_RED = 4;

int const SEMA_PEDESTRIAN_GREEN = 8;
int const SEMA_PEDESTRIAN_RED = 9;

int const LIGHT_DELAY = 4000;
 
void setup() {
  // put your setup code here, to run once:
  pinMode(SEMA_CAR_GREEN, OUTPUT);
  pinMode(SEMA_CAR_YELLOW, OUTPUT);
  pinMode(SEMA_CAR_RED, OUTPUT);

  pinMode(SEMA_PEDESTRIAN_GREEN, OUTPUT);
  pinMode(SEMA_PEDESTRIAN_RED, OUTPUT);
}

void loop() {
  digitalWrite(SEMA_PEDESTRIAN_RED, HIGH); // Closed to pedestrians
  
  digitalWrite(SEMA_CAR_GREEN, HIGH); // OPEN TO CARS
  digitalWrite(SEMA_CAR_RED, LOW);
  digitalWrite(SEMA_CAR_YELLOW, LOW);
  delay(LIGHT_DELAY);
  
  digitalWrite(SEMA_CAR_GREEN, LOW);
  digitalWrite(SEMA_CAR_YELLOW, HIGH);
  digitalWrite(SEMA_CAR_RED, LOW);
  delay(LIGHT_DELAY);
  

  digitalWrite(SEMA_CAR_GREEN, LOW);
  digitalWrite(SEMA_CAR_YELLOW, LOW); 
  digitalWrite(SEMA_CAR_RED, HIGH);

  
  digitalWrite(SEMA_PEDESTRIAN_RED, LOW);
  digitalWrite(SEMA_PEDESTRIAN_GREEN, HIGH);
  delay(LIGHT_DELAY);
  
  digitalWrite(SEMA_CAR_RED, LOW);
  digitalWrite(SEMA_PEDESTRIAN_GREEN, LOW);
  digitalWrite(SEMA_PEDESTRIAN_RED, HIGH);
}