#include <LiquidCrystal_I2C.h>
#include <Servo.h>
#include <ctype.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo miServo;

const int LED = 13;
const int CLEAR = 12;

void setup() {
  lcd.init();
  lcd.backlight();
  miServo.attach(2);
  Serial1.begin(115200);
  pinMode(LED, OUTPUT);
  pinMode(CLEAR, INPUT_PULLUP);
  Serial1.println("Arduino MEGA 2560");
  lcd.print("Arduino MEGA");
  lcd.setCursor(0,1);
  lcd.print("2560");
  miServo.write(0);
  delay(1000);
  lcd.clear();
  miServo.write(180);
}

void loop() {
  if(digitalRead(CLEAR) == LOW) {
    lcd.clear();
  }
  while (Serial1.available() > 0) {
    digitalWrite(LED, HIGH);
    char c = Serial1.read();
    if (isprint(c)) {
      lcd.write(c);
    }
  }
  digitalWrite(LED, LOW);
}