Review on 🔑 HiLetgo PN532 NFC NXP RFID Module V3 Kit: Near Field Communication Reader for Arduino Raspberry Pi DIY Smart Phone with S50 White Card Key Card by Richard Alemayehu

Worked great with my Arduino Pro Mini using I2C (ILO SPI to minimize connections). You need to install some libraries to make it work. The first is called Don's NDEF library. Then comes the PN532 library (I used the Seeed Studio version) which you can find on GitHub. PN532 is actually a set of 4 libraries: PN532, PN532_HSU, PN532_I2C and PN532_SPI. You only need 2, the main PN532.h file and either I2C or SPI depending on how you connect it. HSU is designed for high-speed communications that you probably won't need. The NDEF library comes with some great sample sketches to get you started right away. I just used it as a tag reader and then installed NFC tools on my Android phone to write the data.