#include <DHT.h>
#define DHTPIN 2       //ขาdata ต่อ ขา11
#define DHTTYPE DHT22   //กำหนดค่าตามชนิดDHTที่ใช้งาน
#define echo 4
#define trig 5
#include <LiquidCrystal_I2C.h> 
LiquidCrystal_I2C lcd(0x27, 20, 4);
DHT dht(DHTPIN, DHTTYPE);
/////////////////////////////////////////DHT
void setup() {
  Serial.begin(9600);
   pinMode(DHTPIN, INPUT);
   pinMode(echo, INPUT);
   pinMode(trig, OUTPUT);
   lcd.init();
   lcd.backlight();
   dht.begin();
}

 /////////////////////////////////////////DHT
void loop() {
    float temperature = dht.readTemperature();
    float humidity = dht.readHumidity(); 
    digitalWrite(trig, HIGH);
    delayMicroseconds(10);
    digitalWrite(trig, LOW);

    int distance = pulseIn(echo, HIGH) * 0.034 / 2;
    Serial.println(distance);
    
    lcd.setCursor(1,1);
    lcd.print(distance);
    lcd.setCursor(1,2);
    lcd.print (temperature);
    
    
}
  

//by_mick