#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 13, 14, 25, 26, 27);

void setup() {
  lcd.begin(16, 2);
  pinMode(13, OUTPUT);
  Serial.begin(9600);
  Serial.println("Enter 'ON' or 'OFF' to control the LED");
}

void loop() {
  if (Serial.available() > 0) {
    String x = Serial.readStringUntil('\n');
    x.trim(); // Remove any leading or trailing whitespace

    lcd.clear(); // Clear the previous display
    lcd.setCursor(0, 0);

    if (x == "ON") {
      digitalWrite(13, HIGH);
      lcd.print("LED ON");
      Serial.println("LED turned ON");
    }
    else if (x == "OFF") {
      digitalWrite(13, LOW);
      lcd.print("LED OFF");
      Serial.println("LED turned OFF");
    }
    else {
      lcd.print("Invalid input");
      Serial.println("Invalid input received");
    }

    delay(1000); // Delay to ensure the display has time to update and avoid rapid state changes
  }
}














/*
#include <LiquidCrystal.h>
LiquidCrystal lcd(12,13,14,25,26,27);
void setup(){
  lcd.begin(16,2);
  pinMode(13, OUTPUT);
  Serial.begin(9600);
  Serial.println("Enter Input");
}
void loop(){
  if(Serial.available()>0)
  {
    String x=Serial.readStringUntil('\n');
    lcd.setCursor(0,0);
    if(x=="ON")
    {
      digitalWrite(13,HIGH);
      lcd.print("LED ON");
    }
    else if (x=="OFF");
    {
      digitalWrite(13,LOW);
      lcd.print("LED OFF");
    }
  }
}
/*