A PN532 NFC library for the Spark Core.
Grab the RAW version of each file and place into your web IDE as follows:
If you are building locally, place the files here:
..\core-firmware\inc\nfc.h
..\core-firmware\src\application.cpp (renamed from one of the Examples.cpp)
..\core-firmware\src\nfc.cpp
..\core-firmware\src\build.mk (optional, if you have your own make file going, just add the nfc.cpp to it)