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lib/Arduino_MFRC522v2-master/examples/DumpInfo/DumpInfo.ino

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+/*
+ * --------------------------------------------------------------------------------------------------------------------
+ * Example 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/OSSLibraries/Arduino_MFRC522v2
+ * 
+ * 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+Shift+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
+ * -----------------------------------------------------------------------------------------
+ * 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
+ *
+ * Not found? For more see: https://github.com/OSSLibraries/Arduino_MFRC522v2#pin-layout
+ */
+
+#include <MFRC522v2.h>
+#include <MFRC522DriverSPI.h>
+//#include <MFRC522DriverI2C.h>
+#include <MFRC522DriverPinSimple.h>
+#include <MFRC522Debug.h>
+
+MFRC522DriverPinSimple ss_pin(10); // Configurable, see typical pin layout above.
+
+MFRC522DriverSPI driver{ss_pin}; // Create SPI driver.
+//MFRC522DriverI2C driver{}; // Create I2C driver.
+MFRC522 mfrc522{driver};  // Create MFRC522 instance.
+
+void setup() {
+  Serial.begin(115200);  // Initialize serial communications with the PC for debugging.
+  while (!Serial);     // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4).
+  mfrc522.PCD_Init();  // Init MFRC522 board.
+  MFRC522Debug::PCD_DumpVersionToSerial(mfrc522, Serial);	// Show details of PCD - MFRC522 Card Reader details.
+	Serial.println(F("Scan PICC to see UID, SAK, type, and data blocks..."));
+}
+
+void loop() {
+	// Reset the loop if no new card present on the sensor/reader. This saves the entire process when idle.
+	if ( !mfrc522.PICC_IsNewCardPresent()) {
+		return;
+	}
+
+	// Select one of the cards.
+	if ( !mfrc522.PICC_ReadCardSerial()) {
+		return;
+	}
+
+	// Dump debug info about the card; PICC_HaltA() is automatically called.
+  MFRC522Debug::PICC_DumpToSerial(mfrc522, Serial, &(mfrc522.uid));
+}