#include <Wire.h>
#include "DHT.h" //librería para sensor
#include <LiquidCrystal_I2C.h> //librería para LCD
//Recursos para conexión y ThingSpeak
#include <WiFi.h>
#include "ThingSpeak.h"
//pin conexión con sensor
#define pin2 15

//chanel id: 2381716
// API key: DHPYP495VKWIPSE9
//definición constantes para conexión con ThingSpeak
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2381716;
const char* myApiKey = "DHPYP495VKWIPSE9";
const char* server = "api.thingspeak.com";

WiFiClient client;

DHT dht2(pin2, DHT22);
LiquidCrystal_I2C lcd(0x27, 16, 2); // Dirección I2C: 0x27, Columnas: 16, Filas: 2

void setup() {
  Serial.begin(115200);
  Serial.println("Lectura del sensor:");
  dht2.begin();
  lcd.init(); // Inicializar la pantalla LCD
  lcd.backlight();  // Encender la luz de fondo
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  delay(2000);
  leerdht2();
  delay(2000);
  //TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  ThingSpeak.setField(1, dht2.readTemperature());
  ThingSpeak.setField(2, dht2.readHumidity());
  
  int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);

  if(x == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(x));
  }
  Serial.println("---");

  delay(10000);
}

void leerdht2() {
  float t2 = dht2.readTemperature();
  float h2 = dht2.readHumidity();

  while (isnan(t2) || isnan(h2)) {
    Serial.println("Lectura fallida en el sensor DHT22, repitiendo lectura...");
    delay(5000);
    t2 = dht2.readTemperature();
    h2 = dht2.readHumidity();
  }

  lcd.clear(); // Limpiar la pantalla antes de mostrar nuevos datos

  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(t2);
  lcd.print(" C");

  lcd.setCursor(0, 1);
  lcd.print("Humedad: ");
  lcd.print(h2);
  lcd.print(" %");

  Serial.print("Temperatura: ");
  Serial.print(t2);
  Serial.print(" °C, Humedad: ");
  Serial.print(h2);
  Serial.println(" %");
  Serial.println("-----------------------");
}