// LCD1602 to Arduino Uno connection example

#include <LiquidCrystal.h>
const int BUTTON_PIN = 2;

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

void setup() {
  lcd.begin(16, 2);
  // you can now interact with the LCD, e.g.:
  lcd.print("Hello World! iam study epu");
  pinMode(BUTTON_PIN, INPUT_PULLUP);
}

void loop() {

  if (digitalRead(BUTTON_PIN) == LOW) { 
    
   lcd.scrollDisplayLeft();
    delay(500); 
  } else {
    delay(500);
    lcd.scrollDisplayRight();
    
  }
}