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

#define DHTPIN 4 
#define DHTTYPE DHT22 
LiquidCrystal_I2C lcd(0x27, 16, 2);

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  lcd.init();
lcd.backlight();
 dht.begin();

Serial.println(F("GAS test!"));
}
void loop() {
 
  delay(3000);

  float humidity = dht.readHumidity();
  float temperatureC = dht.readTemperature();

 lcd.setCursor(0,0);
lcd.print("Temp= ");
lcd.setCursor(5,0);
lcd.print(temperatureC);

lcd.setCursor(0,1);
lcd.print("Humidity= ");
lcd.setCursor(9,1);
lcd.print(humidity);

}