#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include <DHT.h>

#define TFT_CS 10
#define TFT_DC 9
#define DHTPIN 2
#define DHTTYPE DHT22

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);
DHT dht(DHTPIN, DHTTYPE);

const unsigned long DELAY_BETWEEN_READINGS_MS = 5000;  // 10 segundos

void setup() {
  tft.begin();
  tft.setRotation(3);  // Ajusta según necesites
  tft.fillScreen(ILI9341_BLACK);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  
  dht.begin();
  delay(2000);  // Esperar a que el sensor se estabilice
}

void loop() {
  float humidity = dht.readHumidity();
  float temperatureC = dht.readTemperature();
  float heatIndexC = dht.computeHeatIndex(temperatureC, humidity, false);

  if (isnan(humidity) || isnan(temperatureC)) {
    displayError();
  } else {
    displaySensorData(humidity, temperatureC, heatIndexC);
  }

  delay(DELAY_BETWEEN_READINGS_MS);
}

void displaySensorData(float humidity, float tempC, float heatIndexC) {
  tft.fillScreen(ILI9341_BLACK);
  tft.setCursor(0, 0);
  
  tft.println("Sensor DHT22:");
  tft.println();
  
  tft.print("Humedad: ");
  tft.print(humidity);
  tft.println(" %");
  
  tft.print("Temperatura: ");
  tft.print(tempC);
  tft.println(" C");
  
  tft.print("Indice de calor: ");
  tft.print(heatIndexC);
  tft.println(" C");
}

void displayError() {
  tft.fillScreen(ILI9341_BLACK);
  tft.setCursor(0, 0);
  tft.println("Error leyendo");
  tft.println("el sensor DHT22");
}