ST25 NFC/RFID tags and readers

Ask questions and find answers on ST25 NFC/RFID tags and readers, including connectivity implementations and antenna design.

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Forum Posts

ST25R100 Read Operation

Hi, I am running ST25R100 on a different processor and coding it at the register level. With the codes I shared below, I was able to run the chip in wakeup mode as I wanted and ensure that an interrupt occurs when the card is approached. However, I c...

ST25R95 EMC 3rd and 7th harmonic failed

Hi ST membersI am using the ST25R95, following the application note and matching tool to define LC components for EMC filter and matching circuit. the function test is good, but I have a high pulse at 3rd harmonics 40.8MHz and 7th 94.92MHz, do you ha...

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JECKSON by Associate II
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  • 9 replies
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Resolved! Card Emulation (CE) NFC-V ST25R3918

Hello ST Community,I found this forum and the example code to our custom hardware very helpful and are successfully reading both NFC-A/NFC-V and emulating NFC-A on ST25R3918.During testing, I've noticed that NFC-V tags with NDEF messages can also tri...

io by Associate
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  • 1 replies
  • 1 kudos

ST25DV04K Energy harvesting

Hello,i'm using arduino to code a STM32C011J6M6 and I want to use the Energy harvesting pin of ST25DV04K to source the IC when the VCC be off and the NFC Field be on.But with this code the EH is on just when VCC and NFC Field are on.if I remove all t...

Resolved! st25r100 standby current problem

Hello, I have x nucleo 09a1 and I managed to run it in wake up mode with a different processor than stm and register. But there is a high current in wake up mode and power down mode. I am sharing the relevant graphics and code, please help.