For starters, you need a pre-wired NFC RFID module as the key hardware. NFC and RFID projects have become a huge trend, but many modules are pricey for electronics hobbyists and need a complex setup.

The tutorial explains how to read a Credit Card on an ESP32 with a connected PN5232 NFC reader. This is the accompanying repository for my article "Read an EMV ...

When running a PN532 over I2C, the device functions after power loss/restoration, and every other soft reboot. When it is provided power, and every second soft reboot, it provides the following during ...