#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27,16,2);

int rled = 13;
int btn = 6;
int count = 0;

void setup() {
  Serial.begin(9600);
  pinMode(rled,OUTPUT);
  lcd.init();
}

void loop() {
  int btn_val = digitalRead(btn);
  int pot_val = analogRead(A0);
  lcd.setCursor(0,0);
  lcd.print("LED Status: ");
  lcd.setCursor(0,1);
  lcd.print("POT Values: ");
  if(pot_val < 10)
    lcd.print("000");
  else if(pot_val < 100)
    lcd.print("00");
  else if(pot_val < 1000)
    lcd.print("0");
  lcd.print(pot_val);
  delay(200);
  if(!btn_val)
  {
    count++;
    if(count==1)
    {
      lcd.setCursor(12,0);
      lcd.print(" ON");
      digitalWrite(rled, HIGH);
    }
    if(count==2)
    {
      lcd.setCursor(12,0);
      lcd.print("OFF");
      digitalWrite(rled, LOW);
      count = 0;
    }
  }
}