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//////////// Code in C++ ////////////
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#include <Wire.h>               // Library to use I²C communication
#include <LiquidCrystal_I2C.h>  // Library to use the I²C LCD screen

LiquidCrystal_I2C lcd(0x27, 16, 2);  // Function to name and give the parameters of the I²C LCD screen

int led = 2;      // Pin of the led
int button = 3;   // Pin of the button
int buttonValue;  // Value of the button

void setup() {
  lcd.init();               // Initialization of the I²C LCD screen
  lcd.backlight();          // To enable the backlight of the I²C LCD screen
  lcd.setCursor(0, 0);      // First line of the I²C LCD screen
  lcd.print("LED STATUS");  // Message of the first line of the I²C LCD screen

  pinMode(led, OUTPUT);    // The led is configured as an OUTPUT
  pinMode(button, INPUT);  // The button is configured as an INPUT
}

void loop() {
  buttonValue = digitalRead(button);  //Reading of the value of the button

  if (buttonValue == 1) {           // If the button is ON
    digitalWrite(led, HIGH);        // The led turns ON
    lcd.setCursor(0, 1);            // Second line of the I²C LCD screen
    lcd.print("              ON");  // Message to display to the I²C LCD screen
  } else {                          // If the button is OFF
    digitalWrite(led, LOW);         // The led turns OFF
    lcd.setCursor(0, 1);
    lcd.print("             OFF");
  }
}