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#include <Wire.h>
#include <LCD.h>
#include <LiquidCrystal_I2C.h>
#define butl 3
#define butp 5
#define led 6
LiquidCrystal_I2C  lcd(0x27,2,1,0,4,5,6,7);
int button = 0;
int num;
int state;
String names[3]={"Damian", "Krzysztof", "Klaudiusz"};
void setup()
{

  pinMode(butl,INPUT);
  pinMode(butp,INPUT);

  pinMode(led,OUTPUT);
  digitalWrite(butl,HIGH);
  digitalWrite(butp,HIGH);
  Serial.begin(9600);

  lcd.begin (16,2); // wyswietlacz 2x16
  lcd.setBacklightPin(3,POSITIVE);
  lcd.setBacklight(HIGH);
  lcd.clear();
  lcd.home();
  lcd.print(names[num]);


}

void loop()
{
bool  butlst=digitalRead(butl);
bool  butpst=digitalRead(butp);

button = 0;
if (butlst == 0){
  button=1;
}

if (butpst == 0){
  button=2;
}



switch(button){
  case 1:
  state=0;
 lcd.clear();
 lcd.home();
 lcd.print(names[num]);
 num++;
 if(num>2){
  num=0;
  }
      break;
  case 2:

state=1;
      break;
}
if(state==1){
  lcd.clear();
 lcd.home();
 lcd.print(names[num]);
 num++;
  if(num>2){
  num=0;
  }
  delay(1000);
}



delay(250);

}