RFID Reader

HostChoice.net: RFID Reader
Posted in: code | by HostChoice.net | 2016 Dec 21


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The original code was found on

http://forum.arduino.cc/index.php?topic=248686.0

but there were a lot of errors in the format.

After working out most of the bugs, this version is able to handle as many relays as there are digital i/o pins.

Note: I just thought of a marketable product based on this. A backup replacement for broken turn signal on vehicles. We need a turn left, turn right, stop, flash, alternate flash.

Thanks!

// code rfid
/*
digitalWrite(pinLED, HIGH);
*/

/* 
* 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 10 #define RST_PIN 9 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));
  }

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