#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <Servo.h>
#define DHTPIN 2
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);
Servo plantServo;

const int ldrPin = A0;
const int potPin = A1;
const int servoPin = 3;
LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup() {
  dht.begin();
  lcd.init();
  lcd.backlight();
  plantServo.attach(servoPin);
}

void loop() {
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();
  float moisture = analogRead(potPin);
  int lightintensity = analogRead(ldrPin);
  int lightpercent = map(lightintensity, 1023, 0, 0, 100);
  int moisturePercent = map(moisture, 0, 1023, 0, 100);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Muhammad Akram bin Adenan");
  lcd.setCursor(0, 1);
  lcd.print("Student ID: ");
  lcd.setCursor(0, 2);
  lcd.print("52103322180");
  delay(2000);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print("%");
  lcd.setCursor(0, 1);
  lcd.print("Temp: ");
  lcd.print(temperature);
  lcd.print("C");
  lcd.setCursor(0, 2);
  lcd.print("Moisture: ");
  lcd.print(moisturePercent);
  lcd.print("%");
  lcd.setCursor(0, 3);
  lcd.print("Light: ");
  lcd.print(lightpercent);
  lcd.print("%");
  delay(2000);

  if (moisturePercent < 30) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Watering the plant....");
    plantServo.write(90);
    delay(2000);
  }
  else {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Plant Moisturized Done!");
    plantServo.write(0);
    delay(2000);
  }
  delay(2000);
}