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- /*
- * --------------------------------------------------------------------------------------------------------------------
- * Example sketch/program showing how to read data from a PICC to serial.
- * --------------------------------------------------------------------------------------------------------------------
- * This is a MFRC522 library example; for further details and other examples see: https://github.com/miguelbalboa/rfid
- *
- * Example sketch/program showing how to read data from a PICC (that is: a RFID Tag or Card) using a MFRC522 based RFID
- * Reader on the Arduino SPI interface.
- *
- * When the Arduino and the MFRC522 module are connected (see the pin layout below), load this sketch into Arduino IDE
- * then verify/compile and upload it. To see the output: use Tools, Serial Monitor of the IDE (hit Ctrl+Shft+M). When
- * you present a PICC (that is: a RFID Tag or Card) at reading distance of the MFRC522 Reader/PCD, the serial output
- * will show the ID/UID, type and any data blocks it can read. Note: you may see "Timeout in communication" messages
- * when removing the PICC from reading distance too early.
- *
- * If your reader supports it, this sketch/program will read all the PICCs presented (that is: multiple tag reading).
- * So if you stack two or more PICCs on top of each other and present them to the reader, it will first output all
- * details of the first and then the next PICC. Note that this may take some time as all data blocks are dumped, so
- * keep the PICCs at reading distance until complete.
- *
- * @license Released into the public domain.
- *
- * Typical pin layout used:
- * -----------------------------------------------------------------------------------------
- * MFRC522 Arduino Arduino Arduino Arduino Arduino
- * Reader/PCD Uno/101 Mega Nano v3 Leonardo/Micro Pro Micro
- * Signal Pin Pin Pin Pin Pin Pin
- * -----------------------------------------------------------------------------------------
- * RST/Reset RST 9 5 D9 RESET/ICSP-5 RST
- * SPI SS SDA(SS) 10 53 D10 10 10
- * SPI MOSI MOSI 11 / ICSP-4 51 D11 ICSP-4 16
- * SPI MISO MISO 12 / ICSP-1 50 D12 ICSP-1 14
- * SPI SCK SCK 13 / ICSP-3 52 D13 ICSP-3 15
- */
- #include <SPI.h>
- #include <MFRC522.h>
- #include <Keyboard.h>
- constexpr uint8_t RST_PIN = 9; // Configurable, see typical pin layout above
- constexpr uint8_t SS_PIN = 10; // Configurable, see typical pin layout above
- MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance
- int RXLED = 17;
- void setup() {
- pinMode(RXLED, OUTPUT);
- Serial.begin(9600);
- //while (!Serial); // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
- SPI.begin(); // Init SPI bus
- mfrc522.PCD_Init(); // Init MFRC522
- mfrc522.PCD_DumpVersionToSerial(); // Show details of PCD - MFRC522 Card Reader details
- Keyboard.begin();
- }
- void readHex(byte *buffer, byte bufferSize) {
- for (byte i = 0; i < bufferSize; i++) {
- Serial.print(buffer[i] < 0x10 ? " 0" : " ");
- Serial.print(buffer[i], HEX);
- }
- }
- void loop() {
- // Look for new cards
- if ( ! mfrc522.PICC_IsNewCardPresent()) {
- digitalWrite(RXLED, HIGH);
- return;
- }
- // Select one of the cards
- if ( ! mfrc522.PICC_ReadCardSerial()) {
- return;
- }
- digitalWrite(RXLED, LOW);
- Serial.print("RFID UID: ");
- readHex(mfrc522.uid.uidByte, mfrc522.uid.size);
- Serial.println();
- // SET YOUR UID HERE (you should see it in your serial monitor)
- if (mfrc522.uid.uidByte[0] == 0x00 &&
- mfrc522.uid.uidByte[1] == 0x00 &&
- mfrc522.uid.uidByte[2] == 0x00 &&
- mfrc522.uid.uidByte[3] == 0x00) {
- Serial.println("Correct UID");
- }
- else {
- Serial.println("Incorrect UID");
- delay(5000);
- return;
- }
- digitalWrite(RXLED, HIGH);
- Serial.println("Printing password...");
- Keyboard.print("yourpassword");
- delay(400);
- Keyboard.write(10);
- delay(2000);
- }
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