// sad radi
#include <LiquidCrystal.h>
int i, c, n, k, duzina; // k kao marker
char nasString[9];
char unosString[30];
char dozvoljeniKarakteri[63] = ("qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM0123456789");
byte ocitaj_taster()

{
 int tmp = analogRead(0); //stanje tastera se ocitava preko
 //analognog ulaza 0
 if (tmp > 635 && tmp < 645) //SELECT
 return 1;
 if (tmp > 405 && tmp < 415) //LEFT
 return 2;
 if (tmp > 95 && tmp < 105) //UP
 return 3;
 if (tmp > 252 && tmp < 262) //DOWN
 return 4;
 if (tmp < 5) //RIGHT
 return 5;
 return 0; //nije pritisnut nijedan od tastera
}


LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

void setup() {


  Serial.begin(9600) ;
  lcd.begin(16,2);
  randomSeed(analogRead(0));

}
void loop(){
  //lcd.setCursor (0, 0);
  n = random(5, 9);
  k=0;

for(i = 0; i<n; i++) {
c=random(0, 62);
nasString[i] = dozvoljeniKarakteri[c];
}

nasString[n] = 0;

lcd.clear();
lcd.print(nasString);
Serial.println(nasString);
Serial.println(n);

while(!Serial.available() ) ;
delay (100);
duzina = Serial.available() ;
Serial.readBytes(unosString, duzina) ;
unosString[duzina] = 0;
Serial.println(unosString);

if (duzina!=n)
{
  lcd.setCursor(0,1);
  lcd.print("BOT");
  }

else{
  for(i=0; i<n; i++)
  {
       if(nasString[i] != unosString[i])
       {
        k = 1;

        }
  }
          if (k==0)
          {
              lcd.setCursor(0,1);
              lcd.print("ECCE HOMO");
            }
          else
          {
            lcd.setCursor(0,1);
            lcd.print("BOT");
          }
    }

while(ocitaj_taster() != 1);
}