Hello!
I'm writing this because i have a problem, and i don't find the answers.
I try to use a RFID RC522 with my arduino mega 2560.
I follow all the instruction from a lot of tutorial ( GitHub - miguelbalboa/rfid: Arduino RFID Library for MFRC522 , Tutorial:Using a RFID Card Reader with the Arduino - YouTube etc etc.)
My problem is: when i try to scan my card, nothing happen. I use the dump info example, but i receive no message on "monitor information". I should have the number and all that stuff.
I try to use this code:
/*
* MFRC522 - Library to use ARDUINO RFID MODULE KIT 13.56 MHZ WITH TAGS SPI W AND R BY COOQROBOT.
* The library file MFRC522.h has a wealth of useful info. Please read it.
* The functions are documented in MFRC522.cpp.
*
* Based on code Dr.Leong ( WWW.B2CQSHOP.COM )
* Created by Miguel Balboa (circuitito.com), Jan, 2012.
* Rewritten by Søren Thing Andersen (access.thing.dk), fall of 2013 (Translation to English, refactored, comments, anti collision, cascade levels.)
* Released into the public domain.
*
* Sample program showing how to read data from a PICC using a MFRC522 reader on the Arduino SPI interface.
*----------------------------------------------------------------------------- empty_skull
* Aggiunti pin per arduino Mega
* add pin configuration for arduino mega
* http://mac86project.altervista.org/
----------------------------------------------------------------------------- Nicola Coppola
* Pin layout should be as follows:
* Signal Pin Pin Pin
* Arduino Uno Arduino Mega MFRC522 board
* ------------------------------------------------------------
* Reset 9 5 RST
* SPI SS 10 53 SDA
* SPI MOSI 11 51 MOSI
* SPI MISO 12 50 MISO
* SPI SCK 13 52 SCK
*
* The reader can be found on eBay for around 5 dollars. Search for "mf-rc522" on ebay.com.
*/
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 53
#define RST_PIN 5
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
void setup() {
Serial.begin(9600); // Initialize serial communications with the PC
SPI.begin(); // Init SPI bus
mfrc522.PCD_Init(); // Init MFRC522 card
Serial.println("Scan PICC to see UID and type...");
}
void loop() {
// Look for new cards
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.
mfrc522.PICC_DumpToSerial(&(mfrc522.uid));
}
Is somebody have one idea? I just received this card so maybe this card is dead? (but the D1 light is HIGH on the TFID RC522)
