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

const int raindropPin = A0;                    
const int servoPin = 3;          
const int lcdColumns = 20;        
const int lcdRows = 4;           

Servo umbrellaServo;             
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);  

const int rainThreshold = 200;    

bool isUmbrellaOpen = false;

void setup() {
    Serial.begin(9600);
    lcd.begin(lcdColumns, lcdRows);  
    lcd.print("Display Rain Fall Details");
    delay(2000);
    lcd.clear();
}

void loop() {
    int raindropValue = analogRead(raindropPin);
    
    lcd.setCursor(0, 0);
    lcd.print("Raindrop: ");
    if (raindropValue < rainThreshold){
      lcd.print("Yes");
    }
    else {lcd.print("No");}

    Serial.print("Raindrop: ");
    Serial.println(raindropValue);

    if ((raindropValue < rainThreshold) && !isUmbrellaOpen) { 
        Serial.println("Opening the umbrella!");
        lcd.print("Umbrella: Open ");
        openUmbrella();
        lcd.setCursor(0, 1); 
    } 
    else if (raindropValue >= rainThreshold &&  isUmbrellaOpen) {
        Serial.println("Closing the umbrella!");
        lcd.print("Umbrella: Closed");
        closeUmbrella();
        lcd.setCursor(0, 1);  
    }

    delay(1000); 
}

void openUmbrella() {

    umbrellaServo.write(180); 
    delay(1000);
    isUmbrellaOpen = true;
}

void closeUmbrella() {
 
    umbrellaServo.write(0);    
    delay(1000);
    isUmbrellaOpen = false;
}