#include <Wire.h>
#include <LiquidCrystal_I2C.h>
int buttonPin = RX;
int buttonState = 0 ;
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup()
{
  
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0); 
  lcd.print("LCD1602 I2c Test"); 
  lcd.setCursor(2, 1); 
  lcd.print("MeliAhr.net"); 
  pinMode(buttonPin, INPUT);

}
void loop() {
  buttonState = digitalRead(buttonPin); 
if (buttonState == HIGH) { 
 lcd.setCursor(0, 0); 
  lcd.print("LCD1602 I2c Test");
  lcd.setCursor(2, 1); 
  lcd.print("esp32_MeliAhr.net"); 
}
else { 

  lcd.setCursor(0, 0); 
  lcd.print("LCD1602 I2c Test"); 
  lcd.setCursor(2, 1); 
  lcd.print("Sys Shutdown..");
}

}