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Emulate NDEF tag ESP32

Baptcallo
Visitor

‎2025-09-23 7:59 AM

Hello,

I’m working with an ST25R3916 and an ESP32-S3. I ported the RFAL library to the ESP32 (platform.c), and it works — I can successfully read a tag with this setup.
However, I’m struggling to emulate a tag in order to send an NDEF message.

Does anyone know where I could find an example implementation for this?

For more context: when I enable tag emulation, my reader correctly detects the programmed UID, but I can’t manage to retrieve the NDEF.

Thanks in advance.

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1 REPLY 1
Brian TIDAL
ST Employee

‎2025-09-23 8:07 AM

Hi Baptiste,

An example of Card Emulation code is available in the pairing demo of the  ST25 Embedded Library. The X-CUBE-NFC6 also includes Card emulation demo. 

See demo_polling.c and demo_ce.c files in those packages.

Rgds

BT

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