76 lines
3.0 KiB
C++
76 lines
3.0 KiB
C++
/*
|
|
* ----------------------------------------------------------------------------
|
|
* This is a MFRC522 library example; see https://github.com/miguelbalboa/rfid
|
|
* for further details and other examples.
|
|
*
|
|
* NOTE: The library file MFRC522.h has a lot of useful info. The functions are
|
|
* documented in MFRC522.cpp. Please read it.
|
|
*
|
|
* Released into the public domain.
|
|
* ----------------------------------------------------------------------------
|
|
* Example sketch/program showing how to test your firmware.
|
|
*
|
|
* Typical pin layout used:
|
|
* -----------------------------------------------------------------------------------------
|
|
* MFRC522 Arduino Arduino Arduino Arduino Arduino
|
|
* Reader/PCD Uno 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>
|
|
|
|
#define RST_PIN 9 // Configurable, see typical pin layout above
|
|
#define SS_PIN 10 // Configurable, see typical pin layout above
|
|
|
|
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
|
|
|
|
void setup() {
|
|
Serial.begin(9600); // Initialize serial communications with the PC
|
|
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 module
|
|
|
|
Serial.println(F("*****************************"));
|
|
Serial.println(F("MFRC522 Digital self test"));
|
|
Serial.println(F("*****************************"));
|
|
ShowReaderDetails(); // Show details of PCD - MFRC522 Card Reader details
|
|
Serial.println(F("Performing test..."));
|
|
bool result = mfrc522.PCD_PerformSelfTest();
|
|
Serial.println(F("-----------------------------"));
|
|
Serial.print(F("Result: "));
|
|
if (result)
|
|
Serial.println(F("OK"));
|
|
else
|
|
Serial.println(F("defect or unknown"));
|
|
Serial.println();
|
|
}
|
|
|
|
void loop() {} // nothing to do
|
|
|
|
/**
|
|
* Helper to print MFRC522 module info
|
|
*/
|
|
void ShowReaderDetails() {
|
|
// Get the MFRC522 firmware version
|
|
byte v = mfrc522.PCD_ReadRegister(mfrc522.VersionReg);
|
|
Serial.print(F("Firmware Version: 0x"));
|
|
Serial.print(v, HEX);
|
|
if (v == 0x91)
|
|
Serial.print(F(" = v1.0"));
|
|
else if (v == 0x92)
|
|
Serial.print(F(" = v2.0"));
|
|
else
|
|
Serial.print(F(" = (unknown)"));
|
|
Serial.println();
|
|
// When 0x00 or 0xFF is returned, communication probably failed
|
|
if ((v == 0x00) || (v == 0xFF))
|
|
Serial.println(F("WARNING: Communication failure, is the MFRC522 properly connected?"));
|
|
}
|