#include "DHT.h"
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
DHT dht (2, DHT11);

void setup() 
{
 Serial.begin(115200);
 dht.begin();
 pinMode (13 ,OUTPUT);
 lcd.begin();
 lcd.backlight();       // เปิด backlight
}

void loop() 
{
  float h = dht.readHumidity();
  float t = dht.readTemperature();

  Serial.print(h);
  Serial.print(",");
  Serial.println(t);
  lcd.setCursor(0, 0);
  lcd.print("h = ");
  lcd.print(h);
  lcd.print("%  ");

  lcd.setCursor(0, 1);
  lcd.print("t = ");
  lcd.print(t);
  lcd.write(0xDF);
  lcd.print("C  ");
  
  if (h > 60)
     digitalWrite(13,1);
  else if (h < 58)
     digitalWrite(13,0);
  
  delay(500);
}