ST25R3911B NFC Board
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Overview
Introduction
This is an NFC development kit based on ST25R3911B, with an AT32F413RBT7 controller, OLED display, user buttons, and common user interfaces. It is your ideal choice for learning and developing NFC applications.
Multiple NFC protocols are supported by the kit, with up to 1.4w output power, and a low-power capacitive wake-up function. It suits applications that require high RF performance, flexibility, and low power consumption, such as access control, ticketing, industry, medical treatment, consumer product, and so on.
Features
- Multi protocols support ISO18092, ISO14443A, ISO14443B , ISO15693, FeliCa™.
- Differential antenna design, output power up to 1.4W, longer sensing distance.
- Embedded low-power capacitive sensor, allows sensing and capacitive wake-up, detecting the nearby card without enabling the magnetic field of the reader.
- AT32F413RBT7 controller, easy for learning, evaluating, or direct integration, needs no other external controller.
- 1.3" OLED display, allows visual operation.
- Onboard SRAM, additional space to the inner RAM.
- Micro SD slot, supports external TF card for storing data to be transferred via NFC.
- 4 x buttons, 2 x user indicators, convenient for debugging.
- Onboard programming interface, UART debugging interface, breakout all the unused IO pins for connecting other user peripherals.
- Customized acrylic case, protective and dust-proof, better looking.
- Comes with development resources and a manual.
Specifications
- NFC chip: ST25R3911B
- Operating frequency: 13.56MHz
- Output power: 1.4W (max)
- Communication interface: SPI
- Protocol support:
- ISO18092 (NFCIP-1) active P2P
- ISO14443A, ISO14443B, and FeliCa™
- ISO15693
- Other standards and customized protocols (like MIFARE™ Classic)
- Power supply voltage: 5V
User Guide
The demos we provide for the NFC board are based on the official ST25R3911B SDK from STMicroelectronics, which includes a user manual with detailed explanations of how to use each function. The specific manuals can be obtained in the Resources section. We have provided demos that integrate NFC tag ID reading and NFC e-Paper display refreshing programs. Users can operate the program functions through the onboard buttons
App Download
- The reader has the program flashed in at the factory, so you can skip the program download and test it directly if you don't need to modify the program
- ST25R3911 NFC Board (NFC Board for short) provides an SW download interface, through which the user can connect the downloader to download the program to the driver board.
- After downloading the program, connect the Micro USB interface of the reader to the PC with a Micro USB cable.
NFC Tag Demo Usage Guide
- Use a USB cable to connect the USB port of the reader to the computer
- After powering on, select the card reader program with the button, and the OLED screen will display "NFC reading test", as shown in the figure below
- Download Serial Port Debugging Assistant and open it
- Set the baud rate to 115200, open the serial port, bring the NFC tag close to the reader to read the ID, as shown in the figure below:
The latest version of NFC is shown as follows
Demos for Image Refresh
- Connect the USB port of the reader to the computer or 5V power supply using USB first
- Copy the prepared monochrome bitmap to the TF card.
Insert the TF card into the card slot of the NFC Board
- Connect the 5V power supply to the USB interface of the NFC Board
- The directory is displayed on the screen, and you can select the e-Paper display model and corresponding images to refresh by pressing the buttons
- Move the mouse to select the Update e-Paper option
- Select the display model to refresh based on the your display
- Select the corresponding image transfer method
- TF card reading image: Update E-paper SD
- Select an image (note that the image resolution should match the screen resolution)
- Confirm the image
- Serial transmission image: Update E-paper UART
- Send BMP format images via serial port (note that the image resolution should match the screen resolution)
- Place the coil of the NFC Board near the center of the NFC Powered e-paper
- Waiting for successful image updating
Select Demo
Select the display mode
Select image acquisition method(TF card)
Select image(TF card)
Confirm selection(TF card)
Read image from TF card(TF card)
Select image acquisition method(Serial port)
Wait for the image transmission (serial port)
Prompt to attach the reader coil to the display
Detect the display successfully
Configure the display
Updating
Update successfully and exit
- If prompted with refresh failure, please remove the reader and reposition for refresh
[Note] Due to the limited communication distance of NFC, please do not easily move the device during refresh to improve the success rate.
Resources
Documents
Demo
Software
FAQ
Because the onboard controller is changed to AT ic instead of the ST.
It requires to use Jlink progammer instead of the ST Link V2.
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Support
Technical Support
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Working Time: 9 AM - 6 PM GMT+8 (Monday to Friday)