Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hello!I'm completely lost in my search for a solution.Question description: The 25R3916 in 14443A emulation mode. When sending data to the reader with a length of up to 255 bytes, everything works perfectly. However, if I need to send data longer tha...
Hi There, I am developing a product where I need to remotely wake up my electronics from 0.5-1.5 m, and also read back some user information about the unit I just woke up (e.g. serial number, firmware version the MCU is running etc). It needs to be a...
Hello, I am planning on implementing a ST25R3916 circuit starting from X-NUCLEO-NFC08A1 schematic, but LXRW0YV600-054 is marked EOL for 2026. Is there any recommendation for change of the implementation? Thank you! Best regards, Dragos
Hello,Tag reading was working perfectly on my previous setup.I now want to migrate my project from an STM32G0B1RE to an STM32L073RZ. Since the Arduino UNO R3 physical pinout standard is respected, the X-NUCLEO-NFC08A1 shield (which uses SPI, IRQ, LE...
Hi everyone,I’m currently working on a project that involves NFC technology, but I’m a bit unsure which NFC tag would be the most suitable for my use case. Maybe some of you have experience with similar requirements.My main goals:Product authenticati...
the document said, the correction factor is due to skin effect, but the K formula seems make a mistake (inverted). should it be Rp@fwork/Rp@fres = K = √(fwork/fres) instead, so the value is incorrect too?(as for skin effect, with frequency increase, ...
Hello,I recently purchased the STEVAL-25R3916B board and it functions correctly with the out-of-the-box demo. However, I’ve been unable to get it working with any of the available software tools, such as the ST25R3916 Discovery GUI or ST25-PC.I’ve c...
Hello,Can this chip produce a constant [unmodulated] NFC field without timeout? I have a lab application where I'd like to output a constant unmodulated signal through attached NFC antenna. Based on reading the datasheet a direct command can be use...
Hello,I'm evaluating ST25DV for an application and am trying to characterize max available VEH voltage. I'm using STEVAL-SMARTAG1 board, and monitoring VEH output while enabling "Energy Harvesting" feature on the "NFC Tap" app. I can't seem to get a...
Hi everyone,I’m currently working on integrating the ST25R3916B NFC reader into my custom hardware and would like to avoid implementing the complete driver from scratch in C/C++. Therefore, I’m trying to base my work on the X-CUBE-NFC6 software packa...
