Learn how to use RFID NFC RC522 with ESP32, how to connect RFID-RC522 module to ESP32, how to code for RFID/NFC, how to program ESP32 step by step. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with ESP32. Find this and other ESP32 tutorials on esp32io.com.