#include <DHT.h>
#include <LiquidCrystal_I2C.h>

#define DHTPIN 13 
#define DHTTYPE DHT22
#define LED 2

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

void setup() {
  Serial.begin(115200);
 dht.begin();
 pinMode(LED, OUTPUT);
 LCD.init();
 LCD.backlight();
 // Menampilkan pesan awal di LCD
 LCD.setCursor(0, 0);
 LCD.print("Suhu-Kelembapan");
 LCD.setCursor(0, 1);
 LCD.print("   by RPL TJP");
 delay(2000);
}

void loop() {
 float suhu = dht.readTemperature();
 float kelembapan = dht.readHumidity();

 LCD.clear();
if ( suhu < 30) {
 Serial.print("Suhu: ");
 Serial.print(suhu);
 Serial.println(" Celcius");
 LCD.setCursor(0, 0);
 LCD.print("Temp: " + String(suhu, 2) + " C");

 Serial.print("Kelembapan: ");
 Serial.print(kelembapan);
 Serial.println(" %");
LCD.setCursor(0, 1);
LCD.print("Humi: " + String(kelembapan, 2) + " %");
 digitalWrite(LED,LOW);
}
else {
  Serial.print("Suhu: ");
  Serial.print(suhu);
  Serial.println(" Celcius");
  LCD.setCursor(0, 0);
  LCD.print("Temp: " + String(suhu, 2) + " C");

  Serial.print("Kelembapan: ");
  Serial.print(kelembapan);
  Serial.println(" %");
  LCD.setCursor(0, 1);
  LCD.print("Humi: " + String(kelembapan, 2) + " %");
  delay(1000);
  LCD.clear();
  LCD.setCursor(0, 0);
  LCD.print("SUHU TERLALU");
  LCD.setCursor(0,1);
  LCD.print("TINGGI");
  digitalWrite(LED, HIGH);
}

delay(1000);
}