#include <Ultrasonic.h>

// Definir pines
const int TRIG = 3;
const int ECHO = 2;
const int LLAVE_ARMAR = 12;
const int SENSOR_HUMO = 4;
const int SENSOR_MONOXIDO = A0;

const int LED_01 = A5;
const int LED_02 = A4;
const int LED_03 = A3;
const int LED_04 = A2;
const int LED_05 = A1;
const int LED_06 = 5;
const int LED_07 = 6;
const int LED_08 = 7;
const int LED_09 = 8;
const int LED_10 = 9;

// Constantes utiles
const int NIVEL_CO_PELIGROSO = 800;

// Crear el objeto
Ultrasonic sensor_distancia(TRIG, ECHO);

void setup () {

  pinMode(LED_01, OUTPUT);
  pinMode(LED_02, OUTPUT);
  pinMode(LED_03, OUTPUT);
  pinMode(LED_04, OUTPUT);
  pinMode(LED_05, OUTPUT);
  pinMode(LED_06, OUTPUT);
  pinMode(LED_07, OUTPUT);
  pinMode(LED_08, OUTPUT);
  pinMode(LED_09, OUTPUT);
  pinMode(LED_10, OUTPUT);

  pinMode(LLAVE_ARMAR, INPUT);
  pinMode(SENSOR_HUMO, INPUT);
  Serial.begin(9600);

}

void loop() {

  bool sistema_armado = digitalRead(LLAVE_ARMAR);

  digitalWrite(LED_01, HIGH);
  delay(250);
  digitalWrite(LED_02, HIGH);
  delay(250);
  digitalWrite(LED_03, HIGH);
  delay(250);
  digitalWrite(LED_04, HIGH);
  delay(250);
  digitalWrite(LED_05, HIGH);
  delay(250);
  digitalWrite(LED_06, HIGH);
  delay(250);
  digitalWrite(LED_07, HIGH);
  delay(250);
  digitalWrite(LED_08, HIGH);
  delay(250);
  digitalWrite(LED_09, HIGH);
  delay(250);
  digitalWrite(LED_10, HIGH);

  if (sistema_armado == HIGH){

      bool humo = digitalRead(SENSOR_HUMO);
      int distancia = sensor_distancia.read();
      int gas_toxico = analogRead(A0);
    
      if (gas_toxico >= NIVEL_CO_PELIGROSO) {
        Serial.print("Nivel de gas tóxico: ");
        Serial.println(gas_toxico);
      }

      Serial.print("Distancia: ");
      Serial.println(distancia);

      if (humo == HIGH) {
        Serial.println("Se prende fuego!");
      }
      else {
        Serial.println("Normal");
      }

  }

  delay(500);
}