Pof Write NFC CARD

gistfile1.rb

require 'ruby-nfc'
require 'logger'

$logger = Logger.new(STDOUT)

def p(str)
    $logger.debug str
end
readers = NFC::Reader.all

readers[0].poll(Mifare::Classic::Tag) do |tag|
  begin
    p "Applied #{tag.class.name}: #{tag}"

        case tag
        when Mifare::Classic::Tag

           if auth(1, :key_b, "FFFFFFFFFFFF")
                p "Contents of block 0x01: #{tag.read.unpack('H*').pop}"

                nro = '00000000f4f0ba000000000000000090'.bytes.to_a.pack('C*')
                tag.write(nro)
                processed!
            end

end

  rescue Exception => e
    p e
  end
end