#include <LiquidCrystal_I2C.h>  // Including the LiquidCrystal_I2C library

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

void setup() {
  
  lcd.init();  // Initializing the LCD screen
  lcd.backlight();  // Turning on the LCD backlight
  
  lcd.setCursor(0, 0);  // Setting the cursor position to column 0, row 0
  lcd.print("HW-038 Sensor");  // Displaying the text "HW-038 Sensor"
  
  delay(3000);  // Waiting for 3 seconds
  
  lcd.clear();  // Clearing the LCD screen
}

void loop() {
  int value = analogRead(A0);  // Reading the analog value from pin A0
  lcd.setCursor(0, 0);  // Setting the cursor position to column 0, row 0
  lcd.print("Value :");  // Displaying the text "Value :"
  lcd.print(value);  // Displaying the read value
  lcd.print("    ");  // Displaying empty spaces to clear previous characters
  lcd.setCursor(0, 1);  // Setting the cursor position to column 0, row 1
  lcd.print("Level :");  // Displaying the text "Level :"
  
  if (value < 10) {
    lcd.print("No water ");  // Displaying the text "No water"
  } 
  else if (value >= 100 && value < 630) {
    lcd.print("Low     ");  // Displaying the text "Low"
  } 
  else if (value >= 630 && value < 670) {
    lcd.print("Medium  ");  // Displaying the text "Medium"
  } 
  else if (value >= 670) 
  {
    lcd.print("High    ");  // Displaying the text "High"
  }
}