#include <Keypad.h>
#include <LiquidCrystal_I2C.h>

int ledPins[] = {23,25,27,29,31,33,35,37}; //An array to hold the pin each LED is connect
long input;
const int ROW_NUM    = 4; // four rows
const int COLUMN_NUM = 4; // four columns

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

byte pin_rows[ROW_NUM] = {13, 12, 11, 10};      // connect to the row pinouts of the keypad
byte pin_column[COLUMN_NUM] = {9, 8, 7, 6}; // connect to the column pinouts of the keypad

Keypad keypad = Keypad(makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM );
LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

int cursorColumn = 0 <256;

void setup(){
   Serial.begin(9600);
   //for LED
 for(int i = 0; i < 8; i++){         //this is a loop and will repeat eight times
      pinMode(ledPins[i],OUTPUT); //we use this to set each LED pin to output
  }
  lcd.init(); // initialize the lcd
  lcd.backlight();
  lcd.print("INPUT THE NUMBER");
  delay(1000);
  lcd.clear();


}

void loop(){
  char key = keypad.getKey();
lcd.setCursor(0, 0);
    lcd.print("BINER FROM"); 
  if (key) {
    lcd.setCursor(cursorColumn, 1); // move cursor to   (cursorColumn, 0)
    lcd.print(key);                 // print key at (cursorColumn, 0)
    cursorColumn++;                 // move cursor to next position
    if(cursorColumn == 2 || cursorColumn > 256) {        // if reaching limit, clear LCD
      lcd.clear();
      cursorColumn = 0; 
    }
    
   input=key-48;
  Serial.println(input);
  for (int i=(input); i<256; i++) {
    outputbiner(input);
    //delay(256-i);
    //delay(2000);
    return 0;
  } 

  }
  
}
void outputbiner(int input) {
  for (int i=0; i<8; i++) {
    if (input%2)
      digitalWrite(ledPins[i], HIGH);
    else
      digitalWrite(ledPins[i], LOW);
    input/=2; 
  }
}