67 lines
3.6 KiB
C++
67 lines
3.6 KiB
C++
/*
|
|
* --------------------------------------------------------------------------------------------------------------------
|
|
* 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 <MFRC522DriverPinSimple.h>
|
|
#include <MFRC522Debug.h>
|
|
|
|
MFRC522DriverPinSimple ss_pin(10); // Create pin driver. See typical pin layout above.
|
|
|
|
SPIClass &spiClass = SPI; // Alternative SPI e.g. SPI2 or from library e.g. softwarespi.
|
|
|
|
const SPISettings spiSettings = SPISettings(SPI_CLOCK_DIV4, MSBFIRST, SPI_MODE0); // May have to be set if hardware is not fully compatible to Arduino specifications.
|
|
|
|
MFRC522DriverSPI driver{ss_pin, spiClass, spiSettings}; // Create SPI 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() {
|
|
if ( !mfrc522.PICC_IsNewCardPresent() || !mfrc522.PICC_ReadCardSerial()) {
|
|
return;
|
|
}
|
|
|
|
MFRC522Debug::PICC_DumpToSerial(mfrc522, Serial, &(mfrc522.uid));
|
|
}
|