arduino-ntag
Arduino library to interface through I²C with the NXP NTAG (NT3H1101 and NT3H1201)
Hardware
Tag
Altium Designer has been used to create a tag PCB with a Class 6 type antenna.
The NXP-website has a lot of useful resources for the NTAG-family of NFC-tags.
For new designs, the NT3H2111 might be a better option. It's cheaper, offers more functionality and should be compatible with the NT3H1101.
Firmware
This library depends on the following Arduino libraries, which must also be installed: