Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.
Hi,I am planning to establish communication between low powered battery operated Device(microcontroller) to NFC tag. (PFA the image below). Please suggest the ST-NFC device(tag) to fulfil the following requirements.A) Application Specific : 1) Re...
I using the Demo code for ST25R3916 It takes long time to read RFID Card Tag , what might be causing that ?I am using X-NUCLEO-NFCC06A1 eval board with ST25R3916 CHIP
Hi,My setup is ST25R3911B / RF-HL ported to ESP32.Recently came across NDEF middleware in "ST25NFC_Embedded_Lib_ST25R3911B". I'm trying to read T2T NFC-A cards but whenever I try to run the NDEF middleware part, the "ndefPollerNdefDetect" function re...
i am trying to design an application using ST25DV04K part. I am having trouble getting an antenna small enough to fit on my board. How do i make a small NFC antenna?
I found the few accessories in the data brief document of ST25RU3993-HPEV board..can you please share the both anenna datasheet and part number which is used in the accessoris image list I have attached the accessories images as per ST25RU3993-HPEV d...
As per the latest product brief DB4247 Rev 3 (May 2021) it says the accessories list containing PCB and Patch Antenna. Where I can find specification of the both the antenna (Gain, Bandwidth, EU/USA details)Data brief - ST25RU3993-HPEV - RAIN® (UHF) ...
I try to Kill a TAG, I'm using different configurations but don't obtain a different answer.I believe if a Kill a Tag, It's not more possible for my reader to identify her, but after I using the kill command my Tags still read by my reader.I want to ...
Hi!I have a NUCLEO-L476RG board that I want to use to control the ST25RU3993-HPEV board with. I am not interested in using the onboard processor on the dev-board, but instead use an independent processor. Among other reasons I need this setup because...
We made a prototype, but the reading performance is worse than EVAL.It was confirmed that the value of Ext.signal sourse in the "normal with RF on" state was large.Therefore, it is presumed that the large reception noise is the cause of the deteriora...
Hi everyone,I am currently testing the UHF RFID board from ST (ST25RU3993-HPEV) and the eval board is using STM32L476RGT6 (Arm®(a) 32-bit Cortex®-M4) as the MCU. Our testing so far has been good and we would like to design our own RFID reader based o...