more verbose
works with Seeed shield and Type 2 tags
works with Adafruit and Type 2 tags
write to unformatted tags too
comments about libraries, conditional code to uncomment
switch to Yihui's pn532
ugly code working with Seeed shield
cleanup
write nfc every 3 seconds, and some cleanup
check TNF and type
inline getPayloadAsString (uses less memory)
other cleanup
fixe Seeed import
custom mime type
custom mime type
custom mime type, adjust imports