Steve,
My apologies... Use the following sketch to send the data back to JMRI over the serial connection you create above.?
?
#include <SPI.h>
#include <MFRC522.h>
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#define SS_PIN 10
#define RST_PIN 9
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MFRC522 rfid(SS_PIN, RST_PIN); // Instance of the class
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MFRC522::MIFARE_Key key;?
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// Init array that will store new NUID?
byte nuidPICC[4];
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void setup() {?
? Serial.begin(9600, SERIAL_8N1);
? SPI.begin(); // Init SPI bus
? rfid.PCD_Init(); // Init MFRC522?
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? for (byte i = 0; i < 6; i++) {
? ? key.keyByte[i] = 0xFF;
? }
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}
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void loop() {
? // Look for new cards
? if ( ! rfid.PICC_IsNewCardPresent())
? ? return;
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? // Verify if the NUID has been read
? if ( ! rfid.PICC_ReadCardSerial())
? ? return;
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? // Format the RFID data as a string
? String rfidString = "";
? for (byte i = 0; i < 4; i++) {
? ? rfidString += String(rfid.uid.uidByte[i], HEX);
? }
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? // Send the RFID data as a string over the serial port
? Serial.println(rfidString);
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? rfid.PICC_HaltA();
? rfid.PCD_StopCrypto1();
}
