How to READ a NFC card with M24SR NFC01A1

[JBott]

Hi, I'm really new in this world but I'm trying to read a NFC card with my NFC01A1 on a Nucleo L476RG but all the examples I found are only for writing on an android phone. Is it possible to read a NFC card with the NFC01A1 ? And if yes, how ? Is there an example somewhere ?

[Rene Lenerve]

Hi,

M24SR is a Dynamic Tag, so it is an EEPROM memory which can be read/write through RF (smartphone or reader) or I2C (MCU). This is why you have found only examples to access memory with a smartphone or a reader or MCU.

If you want to read/write a tag you need a NFC reader (e.g. NFC03A1, NFC05A1). A smartphone can do the job too, for that you'll need an application you can find on st.com or on Google Play Store (ST25 NFC tap).

If you are new to the NFC world, you can check the technical note of the nfc guide that can help you get started in this world.

https://www.st.com/content/ccc/resource/technical/document/technical_note/f9/a8/5a/0f/61/bf/42/29/DM00190233.pdf/files/DM00190233.pdf/jcr:content/translations/en.DM00190233.pdf

Useful links:

NFC03A1 : https://www.st.com/content/st_com/en/products/ecosystems/stm32-open-development-environment/stm32-nucleo-expansion-boards/stm32-ode-connect-hw/x-nucleo-nfc03a1.html

NFC05A1 : https://www.st.com/content/st_com/en/products/ecosystems/stm32-open-development-environment/stm32-nucleo-expansion-boards/stm32-ode-connect-hw/x-nucleo-nfc05a1.html

ST25 NFC Tap : https://www.st.com/content/st_com/en/products/embedded-software/st25-nfc-rfid-software/stsw-st25001.html

Regards.