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

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int potPin = A1; // Analog pin for potentiometer
const int ledPin = 2;  // Digital pin for the LED

void setup() {
  lcd.begin(16, 2);
  lcd.backlight();
  
  pinMode(potPin, INPUT); // Set potentiometer pin as input
  pinMode(ledPin, OUTPUT); // Set LED pin as output

  Serial.begin(9600);
}

void loop() {
  int potValue = analogRead(potPin);
  int moistureLevel = map(potValue, 0, 1023, 0, 100);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Moist:");
  lcd.setCursor(6, 0);
  lcd.print(moistureLevel);
  lcd.print("%");

  // Turn off the LED initially
  digitalWrite(ledPin, LOW);

  // Turn on the LED if the potentiometer value indicates low moisture
  if (moistureLevel < 30) {
    digitalWrite(ledPin, HIGH); // Moisture LED indication
  }

  Serial.print("Moisture Level: ");
  Serial.print(moistureLevel);
  Serial.println("%");

  delay(1000);
}