//ปริญญา เอี่ยมเพ็ง 652021060
#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 8, 10, 11, 9, 13);

#if defined(ARDUINO) && ARDUINO >= 100
#define  printByte(args) write(args);
#else
#define printByte(args) print(args,BYTE);
#endif

uint8_t B[8] = {0x0, 0x0, 0x10, 0x10, 0x10, 0x10, 0x18, 0x18};
uint8_t E[8] = {0x0, 0x0, 0x10, 0x10, 0x10, 0x10, 0x18, 0x18};
uint8_t C[8] = {0x0, 0x0, 0x19, 0x19, 0x9, 0x9, 0x9, 0xf};
uint8_t K[8] = {0x0, 0x0, 0x1, 0xe, 0x10, 0x14, 0x1b, 0x11};
uint8_t M[8] = {0x0, 0x0, 0x1f, 0x19, 0x1d, 0x1d, 0x11, 0x11};

void setup() {
  pinMode(2, INPUT_PULLUP);
  lcd.begin(20, 4);
  lcd.createChar(1, B);
  lcd.createChar(2, E);
  lcd.createChar(3, C);
  lcd.createChar(4, K);
  lcd.createChar(5, M);

  //ชื่อไทย
  //lcd.print("\x01");
  //lcd.print("\x02");
  //lcd.print("\x03");
  //lcd.print("\x05");
  lcd.setCursor(2, 1);
  lcd.print("By Parinya 060");
}

void loop() {
  static unsigned long previousMillis = 0;
  const long interval = 100; 

  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;

    if (digitalRead(2) == LOW) {
      static bool showSpecialChars = true;

      lcd.clear();

      if (showSpecialChars) {
        lcd.setCursor(0, 2);
        lcd.print("\x01");

        lcd.setCursor(1, 2);
        lcd.print("\x02");

        lcd.setCursor(2, 2);
        lcd.print("\x03");

        lcd.setCursor(3, 2);
        lcd.print("\x05");

        lcd.setCursor(2, 1);
        lcd.print("\x04");
      } else {
        lcd.setCursor(1, 2);
        lcd.print("Beck");
      }

      showSpecialChars = !showSpecialChars; 
    }
  }
}