#include <LiquidCrystal.h>
LiquidCrystal lcd(2,3,4,5,6,7);
int PB=28;
int LED=23;
void setup()
{
  pinMode(PB,INPUT);
  pinMode(LED,OUTPUT);
  lcd.begin(16,2);
}
void loop()
{
  PB=digitalRead(28);
  if(PB==LOW);
  {
    lcd.setCursor(0,0);
    lcd.print("SWITCH IS ON");
    lcd.setCursor(0,1);
    lcd.print("LED IS ON");
    digitalWrite(LED,HIGH);
    delay(1000);
    lcd.clear();
  }
  
  {
    lcd.setCursor(0,0);
    lcd.print("SWITCH IS OFF");
    lcd.setCursor(0,1);
    lcd.print("LED IS OFF");
    digitalWrite(LED,LOW);
    delay(1000);
    lcd.clear();
  }
}