// САРВАРОВ ДЕНИС СЭМС-518 ПРАТИКА ЗАДАНИЕ 6
#include <LiquidCrystal.h>
#include <Keypad.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

const byte ROWS = 4;
const byte COLS = 4;

char keys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};

byte rowPins[ROWS] = {8, 7, 6, 9};
byte colPins[COLS] = {A0, A1, A2, A3};

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup() {
  lcd.begin(16, 2);
  lcd.print("Keypad Ready!");
  lcd.setCursor(0, 1);
  lcd.print("Press any key");
}

void loop() {
  char key = keypad.getKey();
  
  if (key) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Pressed: ");
    lcd.print(key);
    lcd.setCursor(0, 1);
    lcd.print("Code: ");
    lcd.print((int)key);
  }
}