#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>

//SDA Pin 2
const int DHT_PIN = 2;
const int DHT_TYPE = DHT22;
DHT dht(DHT_PIN, DHT_TYPE);

//SDA Pin A4 and SCL Pin A5
// initialize the first LCD using the default address (0x27)
LiquidCrystal_I2C lcd1(0x27, 16, 2);

//SDA Pin A4 and SCL Pin A5
// initialize the second LCD using a different address (0x3F)
LiquidCrystal_I2C lcd2(0x25, 16, 2);

void setup() {
  // start the serial communication at 9600 bits per second:
  Serial.begin(9600);

  // initialize the DHT sensor:
  dht.begin();

  // initialize the first LCD:
  lcd1.init();
  lcd1.backlight();

  // initialize the second LCD:
  lcd2.init();
  lcd2.backlight();
}

void loop() {
  // read the temperature from the DHT sensor:
  float temperature = dht.readTemperature();

  // read the humidity from the DHT sensor:
  float humidity = dht.readHumidity();

    // Check if any reads failed and exit early (to try again).
  if (isnan(temperature) || isnan(humidity)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("%  Temperature: "));
  Serial.print(temperature);
  Serial.println(F(" C"));

  // display the temperature on the first LCD:
  lcd1.clear();
  lcd1.setCursor(0, 0);
  lcd1.print("Temp: ");
  lcd1.print(temperature);
  lcd1.print("C");

  // display the humidity on the second LCD:
  lcd2.clear();
  lcd2.setCursor(0, 0);
  lcd2.print("Humidity: ");
  lcd2.print(humidity);
  lcd2.print("%");

  // wait for 2 seconds:
  delay(2000);
}