Exploring NFC Technology: Applications and Free Development Boards

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When it comes to NFC, I believe everyone is familiar with it. As a “future technology” that has not yet fully opened up, what can NFC really do? What fields will NFC enter in the future? What are the challenges in NFC development and design?

The DF Maker Community’s partner—Breadboard Community, along with STMicroelectronics’ senior RF application engineer, will interpret the technical challenges of “Near Field Communication” for everyone. Just sign up, and you can also get a free NFC development board provided by STMicroelectronics.

After receiving the NFC development board, publish a review report, and you will have the chance to win the following rewards:

Rewards:

First Prize 1: 2000 RMB BOSE QC35 II

Second Prize 2: 1000 RMB Huami Watch GTR 47mm Titanium Version

Third Prize 3: 500 RMB JD Card

Excellence Award 5: 200 RMB JD Card

Finalist Award 19: 100 RMB JD Card

NFC Development Board Parameter Details:（Click to read the original text to claim）

1、ST25R3916-DISCO Guide Price: 390 RMB（Free to claim）

Main Features• Operating Modes:– Reader/Writer;– Card Emulation;– Active and Passive Point-to-Point.• RF Communication:– NFC-A / ISO14443A, up to 848 kbit/s;– NFC-B / ISO14443B, up to 848 kbit/s;– NFC-F / Felica™, up to 424 kbit/s;– NFC-V / ISO15693, up to 53 kb/s;– NFC-A / ISO14443A and NFC-F / FeliCa™ Card Emulation;– Active and Passive Point-to-Point Initiator and Target Modes, up to 424 kbit/s;– Low Power Mode achieves compatibility with MIFARE® Classic or other custom protocols• Hardware Features– Dynamic Power Output (DPO) controls field strength to maintainwithin given limits– Active Waveform Shaping (AWS) reduces overshoot and undershoot– Noise Suppression Receiver (NSR) enables reception in noisy environments– Automatic Antenna Tuning (AAT) via variable capacitance– Integrated EMVCo compatible EMD processing– Automatic Gain Control and Silence Function to maximize SNR– Low Power Capacitive and Inductive Card Detection– Low Power NFC Active and Passive Target Modes– Adjustable ASK modulation depth, from 5 to 40%– Integrated Voltage Regulator to enhance system PSRR– AM/PM and I/Q demodulator, providing baseband channel summation or automatic channel selection functionality– Can drive two independent single-ended antennas– Measures antenna voltage amplitude and phase, RSSI, on-chip power and voltage regulation• External Communication Interface– 512-byte FIFO– Serial Peripheral Interface (SPI), up to 10 Mbit/s– I2C, up to 400 kbit/s (Fast Mode), 1 Mbit/s (High Speed Mode) and 3.4 Mbit/s (High Speed Mode)• Electrical Characteristics– Wide supply voltage range: 2.4 to 5.5 V– Wide peripheral communication power range, from 1.65 to 5.5 V– Temperature range: -40°C to +125°C– Quartz oscillator, using 27.12 MHz crystal, for fast startup

（Swipe the screen to understand the development board parameters）

2、X-NUCLEO-NFC04A1 Guide Price: 70 RMB（Free to claim）

X-NUCLEO-NFC04A1 Dynamic NFC/RFID Tag Expansion Board based on ST25DV04K NFC V/RFID tag chip, with dual interface 4 Kbit EEPROM and an I²C interface. The X-NUCLEO-NFC04A1 expansion board is compatible with the pin allocation of Arduino™ UNO R3 connectors, allowing easy insertion onto any STM32 Nucleo board. Various expansion boards can also be stacked to evaluate different devices running with dynamic NFC tags. This board also features a single-layer antenna with a diameter of 54 mm ISO 24.2.

Main Features

• Expansion board based on ST25DV04K Dynamic NFC/RFID tag, suitable for STM32 Nucleo

• Supports NDEF with up to 4 Kb memory

• Diameter 54 mm, single-layer circular antenna

• Compatible with STM32 Nucleo boards

• Equipped with Arduino™ UNO R3 connector

• Self-powered or powered through Arduino UNO R3 connector

• Three general-purpose LEDs

• Expandable solution capable of cascading multiple development boards to form larger systems

• Free complete development firmware library and examples for ST25DV04K, compatible with STM32Cube firmware

（Swipe the screen to understand the development board parameters）

3、ST25DV-PWM-Eset Guide Price: 70 RMB（Free to claim）

ST25DV-PWM-eSET is a dynamic NFC tag evaluation board based on the ST25DV02K-W2 device, which features an NFC/RFID tag chip with PWM output and embeds a 2Kbit EEPROM for partitioning to enhance usage flexibility. Users can program PWM output independently and securely, making it applicable to many different scenarios. The chip updates PWM parameters in real time via a contactless interface, enhancing user experience. The device can be operated via 13.56 MHz RFID reading/writing or any NFC mobile phone. The contactless interface is based on ISO / IEC 15693 and NFC Forum Type 5 tag standards.Main Features:• Ready-to-use printed circuit board, equipped with:ST25DV02K-W2 NFC/RFID tag chip, in SO8NECOPACK2® package22 x 38 mm2 single-layer inductive antennaTwo LEDs indicating PWM output duty cycle• Contactless interface• Based on ISO / IEC 15693 and NFC Forum Type 528.5 pF internal tuning capacitance• Memory and data protection2 Kbit EEPROMUp to four independent regionsTruST25™ digital signature mechanism for authentication

（Swipe the screen to understand the development board parameters）

NFC Design Training Live:

Date: August 6, 2020

Time: 10:00-11:30 (Beijing Time)

Wu Gang

Technical Manager of RF Application Center, Microcontroller and Digital Products Division, STMicroelectronics

↓↓↓Click to read the original text and claim for free