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

// Define pin connections
#define RAIN_ANALOG 18
#define RAIN_DIGITAL 19

// Initialize the LCD with I2C address 0x27, 16 columns and 2 rows
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  // Set pin modes
  pinMode(RAIN_ANALOG, INPUT);
  pinMode(RAIN_DIGITAL, INPUT);
  analogReadResolution(10);
  
  // Initialize Serial communication
  Serial.begin(9600);

  // Initialize the LCD
  lcd.init();
  lcd.backlight(); // Turn on the LCD backlight
}

void loop() {
  // Read the rain amount from the analog pin
  int rainAmount = analogRead(RAIN_ANALOG);

  // Print rain amount to Serial Monitor
  Serial.print("Rain amount: ");
  Serial.println(rainAmount);

  // Clear the LCD and display the information
  lcd.clear();
  lcd.setCursor(0, 0); // Set cursor to the first line
  lcd.print("Rain amount: ");
  lcd.print(rainAmount); // Display the rain amount

  // Check if it's raining and display the message
  if (digitalRead(RAIN_DIGITAL)) {
    Serial.println("It's raining!");
    lcd.setCursor(0, 1); // Set cursor to the second line
    lcd.print("It's raining!");
  } else {
    lcd.setCursor(0, 1); // Set cursor to the second line
    lcd.print("No rain.");
  }

  delay(1000); // Delay for readability
}