Use the nfc, how it would send data to the Arduino in Android?

I want to spend my smartphone iD for Arduino

I have arduino UNO, NFC shield v2.1, android smartphone.

help me! Thanks you

Arduino Yun and NFC

http://forum.arduino.cc/index.php?topic=296382.0

Support all NFC Forum Type:

  • NFC Forum Type 1 Broadcom Topaz
  • NFC Forum Type 2 Mifare Ultralight, Mifare Ultralight C
  • NFC Forum Type 3 Sony FeliCa
  • NFC Forum Type 4 Mifare Desfire (ev1/ev2), NXP SmartMX with JCOP

Plus Mifare. once in the Arduino could send via WIFI or bluetooth.