#include "DHT.h"
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

#define DHTPIN 2     
#define DHTTYPE DHT22   // DHT 22  
#define lcdSDAPin A4
#define lcdSCLPin A5
#define pinLedHot 4
#define pinLedCold 5
#define pinServo 9
#define servoHumedad 11

int angle;

Servo myservo;
Servo servoHumedo;

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  pinMode(lcdSDAPin, OUTPUT);
  pinMode(lcdSCLPin, OUTPUT);
  pinMode(pinLedHot, OUTPUT);
  pinMode(pinLedCold, OUTPUT);
  
  myservo.attach(pinServo);
  servoHumedo.attach(servoHumedad);

  dht.begin();
  lcd.init();
  lcd.backlight();
}

void loop() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // Check if any reads failed and exit early (to try again).
  if (isnan(temperature) || isnan(humidity)) {
      lcd.clear();            
      lcd.setCursor(0, 0);
      lcd.print("¡Error al cargar el sensor DHT!"); 
    return;
  }
  
  lcd.clear();            
  lcd.setCursor(0, 0);
  lcd.print("Humedad: %"); 
  lcd.setCursor(11, 0);
  lcd.print(humidity);
  lcd.setCursor(0, 1);
  lcd.print("Temp.: ");
  lcd.setCursor(8, 1);
  lcd.print(temperature);
  lcd.setCursor(13, 1);
  lcd.print("C ");
  delay(100);

//Para la temperatura
  if(temperature >=30){

    digitalWrite(pinLedHot, HIGH);

    for(angle= 0; angle <=90; angle +=1){
      myservo.write(angle);
      delay(50);
    }
  } else
    {
     digitalWrite(pinLedHot, LOW);
     myservo.write(90);

    }

//Para la humedad
  if(humidity >=60){
      digitalWrite(pinLedCold, HIGH);   
    //'+=' significa un acumulador ; '-=' un sustractor
      for(angle= 90; angle <= 180; angle++){
        servoHumedo.write(angle);
        delay(50);
      }

  }else
    {
     digitalWrite(pinLedCold, LOW);
     servoHumedo.write(90);

    }


  
}