Overview

This is an NFC development kit based on ST25R3911B, with AT32F413RCT7 controller, OLED display, user buttons, and common used 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 wakeup function. It suits applications which require high RF performance, flexibility, and low power consumption, such as access control, ticketing, industry, medical treatment, consumption 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 wakeup, 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, 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 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 customized protocols (like MIFARE™ Classic)
• Power supply voltage: 5V
• Operating voltage: 3.3V

What's on 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
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 example demonstrates the progress of refreshing the display content of an NFC-powered e-Paper. Items required:

• ST25R3911B NFC Board (this product)
• 4.2inch NFC-Powered e-Paper (NOT included)
• Micro SD Card 16GB (NOT included)

Dimension

Weight: 0.083 kg

1. ST25R3911B NFC Board x1

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