#include <LiquidCrystal.h>
#include <Keypad.h>

LiquidCrystal lcd(11,10,9,8,7,6);

const uint8_t ROWS = 4;
const uint8_t COLS = 4;
char keys[ROWS][COLS] = {
  { 'a', '1', '2', '3' },
  { 'b', 'Q', 'W', 'E' },
  { 'c', 'A', 'S', 'D' },
  { 'd', '|', 'Z', 'X' }
};
char keys2[ROWS][COLS] = {
  { '4', '5', '6', '7' },
  { 'R', 'T', 'Y', 'U' },
  { 'F', 'G', 'H', 'J' },
  { 'C', 'V', 'B', 'N' }
};
char keys3[ROWS][COLS] = {
  { '8', '9', '0', 'e' },
  { 'I', 'O', 'P', '/' },
  { 'K', 'L', '|', '/' },
  { 'M', '|', '|', '/' }
};

byte dot[8] = {
  B00000,
  B00000,
  B00100,
  B01110,
  B01110,
  B00100,
  B00000,
  B00000
};

byte dash[8] = {
  B00000,
  B00000,
  B00000,
  B01110,
  B01110,
  B00000,
  B00000,
  B00000
};

uint8_t colPins[COLS] = { 31, 33, 35, 37 }; 
uint8_t rowPins[ROWS] = { 23, 25, 27, 29 }; 

uint8_t colPins2[COLS] = { 47, 49, 51, 53 }; 
uint8_t rowPins2[ROWS] = { 39, 41, 43, 45 }; 

uint8_t colPins3[COLS] = { 44, 42, 40, 38 }; 
uint8_t rowPins3[ROWS] = { 52, 50, 48, 46 }; 

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);
Keypad keypad2 = Keypad(makeKeymap(keys2), rowPins2, colPins2, ROWS, COLS);
Keypad keypad3 = Keypad(makeKeymap(keys3), rowPins3, colPins3, ROWS, COLS);

void setup() {
  Serial.begin(9600);
  lcd.begin(20,4);
  //lcd.blink();

  lcd.createChar(1, dot);
  lcd.createChar(2, dash);
}

void loop() {
  char key = keypad.getKey();
  char key2 = keypad2.getKey();
  char key3 = keypad3.getKey();

  if (key != NO_KEY && key != 'b') {
    lcd.print(key);
    lcd.write(byte(1));
    lcd.noCursor();
  }
  if (key == 'b') {
    lcd.cursor();
    lcd.print(" ");
  }
  if (key3 != NO_KEY && key3 != '/' && key3 != "|" && key3 != "e") {
    lcd.print(key3);
    lcd.noCursor();
  }
  if (key3 == 'e') {
    lcd.noCursor();
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Clearing Please Wait");
    lcd.setCursor(0,2);
    lcd.print("We can not undo this");
    delay(5000);
    lcd.clear();
    lcd.home();
    delay(10);
    lcd.clear();
  }
  if (key2 != NO_KEY) {
    lcd.print(key2);
    lcd.noCursor();
  }
  
}