#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

void setup() {
  Serial.begin(9600);
  Serial.println("Begin");
  pinMode(2, INPUT_PULLUP);
  lcd.begin(16, 2);
  lcd.clear();
  lcd.cursor();
  lcd.setCursor(0, 0);
  lcd.print(0);
}

char s[] = "babii";
int c = 0;
short i = 0;
int char_count = 0;
int word_count;
char b[16];

void loop() {
  if(Serial.available()) {
    c = Serial.read();
    if(c < 65 || c > 122) {
      return;
    }
    char_count++;
    lcd.setCursor(0, 0);
    lcd.print(char_count);
    if(c == s[i]) {
      i++;
    } else {
      i = 0;
    }
    if(i == 5) {
      i = 0;
      word_count++;
      lcd.setCursor(0,1);
      lcd.print("Babii Nazar ");
      lcd.print(word_count);
    }
  }
  if(digitalRead(2) == LOW) {
    char_count = 0;
    lcd.clear();
    lcd.print(0);
  }
}