ST25R3911B NFC Development Kit Embedded AT32 Controller with Multi NFC Protocols

Key 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
• AT32F413RCT7 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
• 4x buttons, 2x user indicators, convenient for debugging
• Onboard programming interface, UART debugging interface, break out all the unused IO pins for connecting other user peripherals
• Customized acrylic case, protective and dust-proof, better looking
• Comes with development resources and manual

Description

This is an NFC development kit based on ST25R3911B, with the AT32F413RCT7 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 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, and so on.

Specification

• 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 customized protocols (like MIFARE™ Classic)
• Power supply voltage: 5V
• Operating voltage: 3.3V

What is On the Board

1. AT32F413RCT7
   
   • Core: ARM® 32-bit Cortex™-M4F
   • Operating Frequency: 200MHz
   • Operating Voltage: 2.0V-3.6V
   • Package: LQFP64
   • Memories: 256kB Flash, 160kB SRAM
   • Communication Interfaces: 2 x SPI, 5 x USART, 2 x I2C, 2 x CAN, 1 x USB, 1x SDIO
   • AD & DA Converters: 2 x AD (12-bit, shares 16 channels)
2. ST25R3911B: NFC chip, aka AS3911B
3. 23LC1024: SRAM, 1Mbit
4. CP2102: USB TO UART converter, for debugging
5. SPX3819: 3.3V voltage regulator
6. 1.3" OLED: blue display, 128×64 pixels, SH1106 driver
7. 4x user buttons:
8. 2x user indicators
9. MCU unused pins
10. USB TO UART port
11. Micro SD slot
12. SWD programming interface
13. NFC induction coil
14. UART pin configuration
    RXD: connected to RXD2 by default, changeable to RXD1 via 0Ω resistor
    TXD: connected to TXD2 by default, changeable to TXD1 via 0Ω resistor

Example

This is an example based on 4.2inch Passive NFC Powered e-Paper without Battery and 32GB SD Card for demonstrating the progress of refreshing the display content of an NFC-powered e-Paper. For the example details and code, please click here.

Dimensions

Part List

• ST25R3911B NFC Board x1
• Acrylic case x1