Read the entire contents of a MIFARE Classic 1k card using a Tessel + RFID module.

readMifare1k.js

var tessel = require('tessel');
var rfidLib = require('rfid-pn532');

var rfid = rfidLib.use(tessel.port['A'], { listen: false });

var addr = 0x00;
var auth_key = [0xff,0xff,0xff,0xff,0xff,0xff];
var auth_type = 0;

var cardData = [];

rfid.on('ready', function(version){
  rfid.on('read', function(card){
    console.log('Found card', card.uid.toString('hex'));
    console.log('Reading addresses 1-64...');
    authenticate(card);
  });

  function authenticate(card) {
    rfid.mifareClassicAuthenticateBlock(card.uid,addr,auth_type,auth_key,function(err){
      if (err){
        console.log('Authentication error on block', addr);
        console.log('Starting over at block', addr);
        setTimeout(function(){rfid.startListening();}, 500);
      } else{
        readBlock(card);
      }
    });
  }

  function readBlock(card) {
    // console.log('Reading block', addr);
    rfid.mifareClassicReadBlock(addr, function(err, data){
      if (err){
        console.log('Read error!', err);
        setTimeout(function(){rfid.startListening();}, 2000);
      } else {

        cardData[addr] = new Buffer(16);
        data.copy(cardData[addr]);

        addr++;
        if (addr < 64){
          authenticate(card);
        } else {
          prettyPrint(cardData);
        }
      }
    });
  }

});

function prettyPrint(buffArray){
  for (var i=0; i<buffArray.length; i++){
    console.log('Block',i,'\t', buffArray[i].toString('hex'));
  }
}

rfid.on('error', function(error){
  console.log('error', error);
});