ST25 NFC/RFID tags and readers

Resolved! Hi, I am using the ST25RU3993 eval board, I wanted to know that does the eval board has an onboard antenna? And if yes, please could you explain that how is it possible that its read range is upto 13meter as it is demonstrated in the demo video.

In the Demo video it states that they are using a near-field antenna. Then how is it possible that the read range of the system is upto 13meter?Hoping for your reply soon!Thank you!

Resolved! ST25DV null UID response

Hello ST communityI'm working with a ST25DV64K-JFR8D3 placed on a custom PCB and very rarely facing a weird issue, namely the UID response of the chip becomes 0000000000000000. This renders the device completely unresponsive, as no RF communication c...

Resolved! RFAL function stuck in infinite loop (rfalIsoDepPollAHandleActivation)

Hello everybody!I use an X-NUCLEO-NFC05A1 (based on ST25R3911B) as a PCD.My test application uses the RFAL V2.0.10 library.After successfully selecting a MIFARE Classic 1K PICC, my test application call the rfalIsoDepPollAHandleActivation function th...

Resolved! How can I ensure that the data in the EEPROM of the ST25DV64K is updated before the ST25DV64K is ready to be read out via RFID?

Hello,I am working with the ISO15693 chip ST25DV64K for the first time.The V_EH output goes to a 1.8 V regulator and the output of the regulator supplies a microcontroller.I would like to know how can I ensure that the microcontroller first writes it...

Resolved! ST25R95 IRQ_In low pulse?

Hello ,According to the st25r95 datasheet:"After the power supply is established at power-on, the ST25R95 waits for a low pulse on the pin IRQ_IN (t1) before automatically selecting the external interface (SPI) and entering Ready state after a delay"...

Resolved! What are the differences between ST25DV04K and M24SR64-Y? Is ANT7-T-ST25DV04K compiles to FCC like ANT7-T- M24SR64-Y?

Resolved! Low power design for ST25R3911B , getting error while operating the IC at 2.8V

Hi , we have made the custom PCB for ST25R3911B with AVR AtMega328P Controller.The board works totally fine when runs at 3V3. But for low power design , when ever we try to power up the board on 2.8V , the controller resets.On debugging we have found...

Resolved! ST25R3911B-EMVCO Schematic and Binary Blob

Hi, I recently adquired a ST25R3911B-EMVCO Reference Design Board. In order to study the design I would like to have access to the Schematic. In Resources, Technical Documentation (https://www.st.com/content/st_com/en/products/evaluation-tools/produc...

Resolved! High antenna impedance evaluation of CR95HF

Hello to everyone:I am starting to evaluate and the possibility to design a transparent antenna on the glass, but I think I have an impedance problem. For example:A. I design an ITO transparent antenna and estimated the total resistor is around 15Koh...