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

LiquidCrystal_I2C lcd(0x27, 20, 4);

#include "DHT.h"
int led1 = 5;
int led2 = 9;

#define DHTPIN 13     
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  Serial.println("Tugas");
  dht.begin();
  lcd.init();
  lcd.clear();
  lcd.backlight();
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);

}

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

  if (isnan(t) || isnan(h)) {return;
  }
  if (t>30){
    digitalWrite(led1, HIGH);
    lcd.setCursor(0,0);
    lcd.print("temp:");
    lcd.print(t);
    lcd.print("C");
    lcd.setCursor(0,2);
    lcd.print("LED1:On");
  }
  if (t<30){
    digitalWrite(led1, LOW);
    lcd.setCursor(0,0);
    lcd.print("temp:");
    lcd.print(t);
    lcd.print("C");
    lcd.setCursor(0,2);
    lcd.print("LED1:Of");
  }
  if (h>30){
    digitalWrite(led2, HIGH);
    lcd.setCursor(0,1);
    lcd.print("humi:");
    lcd.print(h);
    lcd.print("&");
    lcd.setCursor(0,3);
    lcd.print("LED2:On");
  }
  if (h<30){
    digitalWrite(led2, LOW);
    lcd.setCursor(0,1);
    lcd.print("humi:");
    lcd.print(h);
    lcd.print("&");
    lcd.setCursor(0,3);
    lcd.print("LED2:Of");
  }

  Serial.print("Humidity:");
  Serial.print(h);
  Serial.println("%"); 
  Serial.print("temperature:");
  Serial.print(t);
  Serial.println("C ");
  delay(1000);
}