#include <Wire.h>
#include <LiquidCrystal_I2C_Hangul.h>

const int ledPin1 = 2; 
const int ledPin2 = 3;
const int ledPin3 = 4; 
const int buttonPin = 7; 

LiquidCrystal_I2C_Hangul lcd(0x27, 20, 4); 

void setup() {
 Serial.begin(9600);
 pinMode(ledPin1, OUTPUT);
 pinMode(ledPin2, OUTPUT);
 pinMode(ledPin3, OUTPUT);
 pinMode(buttonPin, INPUT);
 randomSeed(analogRead(0)); 

 lcd.init();
 lcd.clear(); 
}

void loop() {
 if (digitalRead(buttonPin) == HIGH) {
  int randomNumber = random(1, 7); 
  Serial.print("Випадкове число: ");
  Serial.println(randomNumber);
  lcd.clear(); 
  displayNumber(randomNumber); 
  delay(500); 
 }
}

void displayNumber(int number) {
 digitalWrite(ledPin1, LOW);
 digitalWrite(ledPin2, LOW);
 digitalWrite(ledPin3, LOW); 


 if (number >= 1)
  digitalWrite(ledPin1, HIGH);
 if (number >= 2)
  digitalWrite(ledPin2, HIGH);
 if (number >= 3)
  digitalWrite(ledPin3, HIGH);

 lcd.setCursor(0, 0);
 lcd.print("RANDOM NUMBER:");
 lcd.setCursor(0, 1);
 lcd.print(number);
}