#include <LiquidCrystal_I2C.h>

int lcdColumns = 16;
int lcdRows = 2;
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);

void setup() {
  lcd.init();
  lcd.backlight();
}  

void loop() {
  lcd.setCursor(0, 0);
  lcd.print("temperature : ");

  lcd.setCursor(1, 1);
  lcd.print("humidity : ");
  delay(500);
  lcd.clear();
}