#include <Arduino.h>
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <WiFi.h>

#define DHTPIN 2          // Pino de conexão do DHT22
#define DHTTYPE DHT22     // Tipo do sensor DHT

#define GREEN_LED 12      // Pino do LED verde
#define YELLOW_LED 13     // Pino do LED amarelo
#define RED_LED 14        // Pino do LED vermelho

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);

  pinMode(GREEN_LED, OUTPUT);
  pinMode(YELLOW_LED, OUTPUT);
  pinMode(RED_LED, OUTPUT);

  dht.begin();
}

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

  Serial.print("Temperatura: ");
  Serial.print(temperature);
  Serial.print(" °C, Umidade: ");
  Serial.print(humidity);
  Serial.println(" %");

  if (isnan(temperature) || isnan(humidity)) {
    Serial.println("Erro ao ler o sensor DHT22.");
    return;
  }

  if ((temperature <= 27 && temperature >= 18) && (humidity >= 40 && humidity <= 60)) {
    digitalWrite(GREEN_LED, HIGH);
    digitalWrite(YELLOW_LED, LOW);
    digitalWrite(RED_LED, LOW);
  } else if (((temperature <= 35 && temperature >= 28) || (temperature <= 18 && temperature >= 5)) || ((humidity >=30  && humidity <= 39) || (humidity >= 61 && humidity <= 90))) {
    digitalWrite(GREEN_LED, LOW);
    digitalWrite(YELLOW_LED, HIGH);
    digitalWrite(RED_LED, LOW);
  } 
  else {
    digitalWrite(GREEN_LED, LOW);
    digitalWrite(YELLOW_LED, LOW);
    digitalWrite(RED_LED, HIGH);
  }

  delay(3000); // Aguarda 5 segundos antes de fazer outra leitura
}