NFC + RFID

FREE-WILi 2 reads and writes both bands of the RFID world. The 13.56 MHz high-frequency side runs on the ST25R3916, a multi-standard NFC front-end that speaks ISO14443 A/B and handles the everyday tags — MIFARE, NTAG, and friends — for full read and write.

The 125 kHz low-frequency side covers the classic prox and EM4100-style access cards. And because FREE-WILi 2 does more than read, it can emulate a saved credential — presenting a tag rather than just scanning one. It's all scriptable through the dev.wireless.nfc API, so cloning, emulating, and fuzzing tags is a few lines of code away.