ArduinoBASH 1.0

#include <SPI.h>
#include <MFRC522.h>
#include <FastLED.h>
#include <EEPROM.h>

#define BUZZ_PIN 8
#define RST_PIN 9
#define SS_PIN 10

#define NUM_LEDS 8
#define MAX_CARDS 8
#define LED_PIN 5
MFRC522 mfrc522(SS_PIN, RST_PIN);
CRGB leds[NUM_LEDS];
byte reading_card[4];

byte master[4] = {43, 151, 116, 50};
byte cards_count;
void setup() {
  Serial.begin(9600); // инициализация последовательного порта
  SPI.begin(); // инициализация SPI
  mfrc522.PCD_Init(); // инициализация MFRC522
  FastLED.addLeds<WS2812, LED_PIN, RGB>(leds, NUM_LEDS);
  leds[0] = CRGB::Black;
  FastLED.show();
  //EEPROM.write(0, 0);
  byte b;
  EEPROM.get(0, cards_count);
}

void loop() {
  delay(100);
  if (mfrc522.PICC_IsNewCardPresent())
  {
    if (mfrc522.PICC_ReadCardSerial())
    {
      Serial.println(" ");
      Serial.println("Card is found");
      Serial.println("Cardnumber:");
      for (int i = 0; i < 4; i++)
      {
        Serial.print(mfrc522.uid.uidByte[i]);
        Serial.println();
        reading_card[i] = mfrc522.uid.uidByte[i];
      }
      Serial.println();
      int i;
      for (i = 0; i < 4; i++) {
        if (reading_card[i] != master[i])
          break;
      }
      if (i == 4) {
        Serial.println("Master card is found");
        tone(BUZZ_PIN, 4500, 100);
        showColor(CRGB::Blue);
        while (true) {
          if (mfrc522.PICC_IsNewCardPresent())
            if (mfrc522.PICC_ReadCardSerial())
            {
              for (int q = 0; q < 4; q++) {
                Serial.print(mfrc522.uid.uidByte[q]);
                Serial.println();
                reading_card[q] = mfrc522.uid.uidByte[q];
              }
              break;
            }
        }

        if (reading_card[0] == master[0] && reading_card[1] == master[1] && reading_card[2] == master[2] && reading_card[3] == master[3]) {
          tone(BUZZ_PIN, 4500, 1000);
          for (i = 0; i < 2048; i++) {
            EEPROM.write(i, 0);
          }
          tone(BUZZ_PIN, 4500, 100);
          showColor(CRGB::Blue);
          cards_count = 0;
        } else {
          for (i = 0; i < 4; i++) {
            EEPROM.write(1+cards_count*4+i, (byte)reading_card[i]);
          }
        }
        cards_count++;
        Serial.print(cards_count);
        Serial.println("Card is added");
        return;
      }
      Serial.println("I am here :D");

      bool found = findCard(reading_card);
      if (!found) {
        tone(BUZZ_PIN, 1500, 300);
        showColor(CRGB::Green);
      } else {
        tone(BUZZ_PIN, 3500, 100);
        showColor(CRGB::Red);
      }
    }
  }
}

void showColor(CRGB color) {
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = color;
  }
  FastLED.show();
  delay(2000);
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB::Black;
  }
  FastLED.show();
}

bool findCard(byte card[]) {
  byte buf1, buf2, buf3, buf4;
  bool found = false;
  for (int i = 0; i < MAX_CARDS; i++) {
    EEPROM.get(1+i*4, buf1);
    EEPROM.get(1+i*4+1, buf2);
    EEPROM.get(1+i*4+2, buf3);
    EEPROM.get(1+i*4+3, buf4);
    if (buf1 == card[0] && buf2 == card[1] && buf3 == card[2] && buf4 == card[3]) {
      found = true;
      break;
    }
    if (found) break;
  }
  return found;
}