About CT-55555

CT-55555 · 2024-01-02

Hello everyone, I m trying to create my own NFC-Reader Board with a ST25R3916B. With the help of the x-Nucleo NFC08A1I designed my own shematic. After ordering my custome curcit board and assembling all parts I tried to get it running but it does not...

CT-55555 · 2023-11-20

Hello everyone, for my project I am using the X-Nucleo-NFC08A1 board. In addition, I am using an external antenna that I operate differentially. The antenna is connected to the board via an SMA connector. I know that I should also adjust the matchin...

CT-55555 · 2023-11-07

Hello everyone,I am using an NFC08A1 for my project and I would like to use the AAT. I roughly understand what happens in the AAT algorithm. However, I don't get any noticeable improvement when I apply it. The range in particular remains almost the s...

CT-55555 · 2023-10-30

Hello everyone, for my project, I need to read a tag in two different places. Currently I am using an X-Nucleo-NFC08A1. I would like to add an additional X-Nucleo-NFC08A1 reader.The communication is done via SPI. What adjustments do I have to make in...

CT-55555 · 2023-10-27

Hello everyone, for my project I need to enter the secure mode on a em4233 Glastag. I also use X-Cube-NFC6. The rfal-librarys only support tags from STM. I do not know how to send the command to the Tag can some explain or provide a example. Thanks

CT-55555 · 2024-01-09

Hello, the problem was with the capacitors for the quartz. The value was too high. Thank you for the reply. Best regards

CT-55555 · 2023-11-30

Hello Travis, the line to the antenna on the shiel is very short. Is that the reason for the R + L to disappear in series? And after adding the coax-cable the cable itself has a resistance and inductance.Best regards

CT-55555 · 2023-11-30

Hello Travis, thank you for you're time and the detailed explanation. I tried single ended and it works very good. It's just some fine tuning. I would like to compare different antenna with different matching curcits. Do you have any tips for doing a...

CT-55555 · 2023-11-27

Hello Travis Palmer, thank you for you're help i will try the method using the single ended with cable. I dont really understand why the differential antenna doesn't work with the SMA sockets. You said something about the unsymmetrical wave shapes an...

CT-55555 · 2023-11-24

Hello Travis Palmer, thank you very much for you're help. I assume you think the best idea is to use the single ended antenna matching with a cable ? What about the performance is their a big differenceor not. And you said with at a target matchin im...

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ST25R3916 problem with SPI on a custome Board

Problem with ST25R Antenna Matching Tool

Using AAT on NFC08a1

Using two X-NUCLEO-NFC08A1 with X-CUBE-NFC6

Enter secure mode on a Tag using a St25R3916 on a X Nucleo NFC08A1

Re: ST25R3916 problem with SPI on a custome Board

Re: Problem with ST25R Antenna Matching Tool

Re: Problem with ST25R Antenna Matching Tool

Re: Problem with ST25R Antenna Matching Tool

Re: Problem with ST25R Antenna Matching Tool