About microcontroller ESP

[Ruhanpaco]

Can i use ESP8266, or only works with ESP32?

[cookesan]

ESP8266 will not work for this project.

The firmware is built with ESP-IDF and the release/CI targets are ESP32-family chips: esp32, esp32c3, esp32c6, and esp32s3. The README also lists the prerequisite as an ESP32 development board, plus a PN532 NFC module.

So pick one of the ESP32 targets that has a matching release binary. If you need Ethernet with an RMII PHY such as LAN8720, note the README caveat: that part is only supported on ESP32-WROOM-32 style boards because the other variants do not have the internal EMAC needed for RMII.