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

// I2C LCD address (often 0x27 or 0x3F)
LiquidCrystal_I2C lcd(0x27, 16, 2); 

Servo shutterServo;

const int rainSensorPin = 2;
const int servoPin = 7;

bool isRaining = false;

void setup() {
  pinMode(rainSensorPin, INPUT);
  Serial.begin(9600);

  shutterServo.attach(servoPin);
  shutterServo.write(0); // Initial position

  lcd.init(); 
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Rain Detector");

   lcd.setCursor(0, 1);
  lcd.print("Auto_Shuttering");
  delay(5000);
}

void loop() {
  int rainDetected = digitalRead(rainSensorPin);

  if (rainDetected == LOW) { // LOW = Rain Detected for some modules
    if (!isRaining) {
      isRaining = true;
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Rain Detected");
      lcd.setCursor(0, 1);
      lcd.print("Shutter_Clossing");
       shutterServo.write(90);
       delay (5000);
       lcd.setCursor(0, 1); 
      lcd.print("Shutter_Closed  ");

      Serial.println("Rain Detected - Shutter Closed");
    }
  } else {
    if (isRaining) {
      isRaining = false;
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("No Rain");
      lcd.setCursor(0, 1); 
      lcd.print("Shutter_Opening");
      shutterServo.write(0);
      delay(5000);
      lcd.setCursor(0, 1); 
      lcd.print("Shutter_Opened ");

      Serial.println("No Rain - Shutter Open");
    }
  }

  delay(1000); // 1-second delay
}