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

#define RAIN_SENSOR_PIN 4
#define DHTPIN 15
#define DHTTYPE DHT22
#define MOTOR_PIN 14  // Pin untuk mengontrol motor DC

DHT dht22(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 20, 4);

int temperature = 0;
int humidity = 0;
int rainValue = 0;

void setup() {
  Serial.begin(115200);

  lcd.init();
  lcd.backlight();

  dht22.begin();
  pinMode(RAIN_SENSOR_PIN, INPUT);

  lcd.setCursor(3, 0);
  lcd.print("SMKN 11 BEKASI");

  pinMode(MOTOR_PIN, OUTPUT);
  digitalWrite(MOTOR_PIN, LOW); // Matikan motor DC saat awal

  delay(1000);  // Tunggu sebentar sebelum memulai loop
}

void loop() {
  temperature = dht22.readTemperature();
  humidity = dht22.readHumidity();
  rainValue = digitalRead(RAIN_SENSOR_PIN);

  lcd.setCursor(0, 1);
  lcd.print("SUHU: " + String(temperature) + " C   ");
  lcd.setCursor(0, 2);
  lcd.print("KELEMBAPAN: " + String(humidity) + " %   ");

  if (isnan(temperature) || isnan(humidity)) {
    Serial.println("Failed to read from DHT sensor!");
    lcd.setCursor(0, 3);
    lcd.print("KONDISI: ERROR   ");
  } else {
    if (rainValue == HIGH) {
      Serial.println("Rain detected!");
      lcd.setCursor(0, 3);
      lcd.print("KONDISI: HUJAN       ");

      digitalWrite(MOTOR_PIN, HIGH);  // Hidupkan motor DC
      delay(4000); // Putar motor selama 4 detik (misalnya)
      digitalWrite(MOTOR_PIN, LOW);   // Matikan motor DC

    } else {
      Serial.println("No rain.");
      lcd.setCursor(0, 3);
      lcd.print("KONDISI: TIDAK HUJAN   ");
    }
  }

  delay(100);
}