Libraries:
Cod #include <SPI.h> #include <MFRC522.h>
#define RST_PIN 9 #define SS_PIN 10
MFRC522 mfrc522(SS_PIN, RST_PIN);
byte buffer[18]; byte block; byte waarde[64][16]; MFRC522::StatusCode status;
MFRC522::MIFARE_Key key;
#define NR_KNOWN_KEYS 8
byte knownKeys[NR_KNOWN_KEYS][MFRC522::MF_KEY_SIZE] = {
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, {0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5}, {0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5}, {0x4d, 0x3a, 0x99, 0xc3, 0x51, 0xdd}, {0x1a, 0x98, 0x2c, 0x7e, 0x45, 0x9a}, {0xd3, 0xf7, 0xd3, 0xf7, 0xd3, 0xf7}, {0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff}, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
};
char choice;
void setup() {
Serial.begin(9600); while (!Serial); SPI.begin(); mfrc522.PCD_Init(); pinMode(7, OUTPUT); Serial.println(F("Try the most used default keys to print block 0 to 63 of a MIFARE PICC.")); Serial.println("1.Read card \n2.Write to card \n3.Copy the data.");
for (byte i = 0; i < 6; i++) { key.keyByte[i] = 0xFF; }
}
void dump_byte_array(byte *buffer, byte bufferSize) {
for (byte i = 0; i < bufferSize; i++) { Serial.print(buffer[i] < 0x10 ? " 0" : " "); Serial.print(buffer[i], HEX); }
}
void dump_byte_array1(byte *buffer, byte bufferSize) {
for (byte i = 0; i < bufferSize; i++) { Serial.print(buffer[i] < 0x10 ? " 0" : " "); Serial.write(buffer[i]); }
}
bool try_key(MFRC522::MIFARE_Key *key) {
bool result = false; for(byte block = 0; block < 64; block++){ status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, block, key, &(mfrc522.uid)); if (status != MFRC522::STATUS_OK) { Serial.print(F("PCD_Authenticate() failed: ")); Serial.println(mfrc522.GetStatusCodeName(status)); return false; }
byte byteCount = sizeof(buffer); status = mfrc522.MIFARE_Read(block, buffer, &byteCount); if (status != MFRC522::STATUS_OK) { Serial.print(F("MIFARE_Read() failed: ")); Serial.println(mfrc522.GetStatusCodeName(status)); } else { result = true; Serial.print(F("Success with key:")); dump_byte_array((*key).keyByte, MFRC522::MF_KEY_SIZE); Serial.println(); Serial.print(F("Block ")); Serial.print(block); Serial.print(F(":")); dump_byte_array1(buffer, 16); Serial.println(); for (int p = 0; p < 16; p++) { waarde [block][p] = buffer[p]; Serial.print(waarde[block][p]); Serial.print(" "); } } } Serial.println(); Serial.println("1.Read card \n2.Write to card \n3.Copy the data.");
mfrc522.PICC_HaltA(); mfrc522.PCD_StopCrypto1(); return result; start();
}
void loop() {
start();
}
void start(){
choice = Serial.read(); if(choice == '1') { Serial.println("Read the card"); keuze1(); digitalWrite(7, HIGH); delay(2000); digitalWrite(7, LOW);
} else if(choice == '2') { Serial.println("See what is in the variables"); keuze2(); digitalWrite(7, HIGH); delay(2000); digitalWrite(7, LOW); } else if(choice == '3') { Serial.println("Copying the data on to the new card"); keuze3(); digitalWrite(7, HIGH); delay(2000); digitalWrite(7, LOW); }
}
void keuze2(){
for(block = 4; block <= 62; block++){ if(block == 7 || block == 11 || block == 15 || block == 19 || block == 23 || block == 27 || block == 31 || block == 35 || block == 39 || block == 43 || block == 47 || block == 51 || block == 55 || block == 59){ block ++; } Serial.print(F("Writing data into block ")); Serial.print(block); Serial.println("\n"); for(int j = 0; j < 16; j++){ Serial.print(waarde[block][j]); Serial.print(" "); } Serial.println("\n"); } Serial.println("1.Read card \n2.Write to card \n3.Copy the data."); start();
}
void keuze3(){ Serial.println(“Insert new card…”);
if ( ! mfrc522.PICC_IsNewCardPresent()) return;
if ( ! mfrc522.PICC_ReadCardSerial()) return;
Serial.print(F("Card UID:")); dump_byte_array(mfrc522.uid.uidByte, mfrc522.uid.size); Serial.println(); Serial.print(F("PICC type: ")); MFRC522::PICC_Type piccType = mfrc522.PICC_GetType(mfrc522.uid.sak); Serial.println(mfrc522.PICC_GetTypeName(piccType)); for (byte i = 0; i < 6; i++) { key.keyByte[i] = 0xFF; }
for(int i = 4; i <= 62; i++){ if(i == 7 || i == 11 || i == 15 || i == 19 || i == 23 || i == 27 || i == 31 || i == 35 || i == 39 || i == 43 || i == 47 || i == 51 || i == 55 || i == 59){ i++; } block = i; Serial.println(F("Authenticating using key A...")); status = (MFRC522::StatusCode) mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, block, &key, &(mfrc522.uid)); if (status != MFRC522::STATUS_OK) { Serial.print(F("PCD_Authenticate() failed: ")); Serial.println(mfrc522.GetStatusCodeName(status)); return; } Serial.println(F("Authenticating again using key B...")); status = (MFRC522::StatusCode) mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_B, block, &key, &(mfrc522.uid)); if (status != MFRC522::STATUS_OK) { Serial.print(F("PCD_Authenticate() failed: ")); Serial.println(mfrc522.GetStatusCodeName(status)); return; } Serial.print(F("Writing data into block ")); Serial.print(block); Serial.println("\n"); dump_byte_array(waarde[block], 16); status = (MFRC522::StatusCode) mfrc522.MIFARE_Write(block, waarde[block], 16); if (status != MFRC522::STATUS_OK) { Serial.print(F("MIFARE_Write() failed: ")); Serial.println(mfrc522.GetStatusCodeName(status)); } Serial.println("\n"); } mfrc522.PICC_HaltA(); mfrc522.PCD_StopCrypto1(); Serial.println("1.Read card \n2.Write to card \n3.Copy the data."); start();
}
void keuze1(){
Serial.println("Insert card..."); if ( ! mfrc522.PICC_IsNewCardPresent()) return;
if ( ! mfrc522.PICC_ReadCardSerial()) return;
Serial.print(F("Card UID:")); dump_byte_array(mfrc522.uid.uidByte, mfrc522.uid.size); Serial.println(); Serial.print(F("PICC type: ")); MFRC522::PICC_Type piccType = mfrc522.PICC_GetType(mfrc522.uid.sak); Serial.println(mfrc522.PICC_GetTypeName(piccType)); MFRC522::MIFARE_Key key; for (byte k = 0; k < NR_KNOWN_KEYS; k++) { for (byte i = 0; i < MFRC522::MF_KEY_SIZE; i++) { key.keyByte[i] = knownKeys[k][i]; } if (try_key(&key)) { break; } }
}