NFC RFID Reader Writer - μFR Nano - Smart Card Encoder + FREE SDK

NFC RFID Reader Writer - μFR Nano - Smart Card Encoder + FREE SDK

NFC RFID Reader Writer - uFR Advance - Programmer with Real-Time Clock and EEPROM + FREE SDK

NFC RFID Reader Writer - µFR Advance with RTC & EEPROM + FREE SDK

NFC RFID Reader Writer - µFR Classic CS OEM + FREE SDK

NFC RFID contactless reader/writer µFR Classic CS is a card-size RFID NFC reader/writer primarily designed as a professional tool for IT companies and individuals engaged in RFID NFC solution development.

It comes with free SDK source code examples, cross-platform libraries, upgradeable firmware, and a well-documented API and communication protocol.

Availability: In stock
  • Buy 5 for €54.20 each and save 3.21%
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  • Buy 100 for €45.70 each and save 18.39%
NFC RFID Reader Writer - µFR Classic CS OEM + FREE SDK is available to buy in increments of 1

NFC Reader Writer - uFR Classic OEM

uFR Classic is a first model in Digital Logic’s uFR Series of NFC RFID readers writers.

It is NFC Forum & RFID compatible contactless reader/writer which successfully implements ISO14443 A & B and ISO18092 standards on HF working frequency of 13.56 MHz.
This device is genuine Digital Logic product, 100% designed, produced and programmed at company premises located in Serbia, Europe.
All models of uFR Series are using the same SDK API and are totally compatible and interoperable in common set of functions.


Reader’s RF communication is based on NXP’s powerful, highly integrated reader IC for contactless communication at 13.56 MHz, which supports all protocol layers of the ISO/IEC 14443 A, ISO/IEC 14443 B and ISO/IEC 18092 communication standards.

All variants of the MIFARE® cards family (MIFARE Mini®, MIFARE Classic® 1K, MIFARE Classic® 4K, MIFARE Ultralight®, MIFARE Ultralight C®, MIFARE DESFire® EV1 and MIFARE Plus®) RF identification protocols are supported. Additionally, NFC Forum specification for “Type 2 Tag” is supported, which adds NTAG2xx chip family to above list.

It has built-in anti-collision mechanism for detecting multiple cards at time.
Built-in well-tuned antenna provides proximity operating distance up to 80 mm (depending on card’s antenna geometry) and contactless communication speed at higher baud rates (up to 424 kBd).

Device also has built in Crypto1® algorithm and secure non-volatile internal key memory storage for better security. Communication with host is provided by using USB 2.0 Full Speed compatible interface. Data transfer rates are limited from 9600 baud to 1 Mbaud, for integrity and security reasons. Reader can also act as a serial interface device using FTDI’s Virtual COM port (VCP) drivers.

Audible (speaker) and 2 LEDs visible indicators are built in and absolutely user controllable.

Active amplified antenna with RF booster – providing better and more homogenous card reading range. (Optional)

SAM (Secure Access Module) slot for PCM1.1 SAM cards – ideal for storing keys in the most secure manner and for performing secure cryptography operations. (Optional)

This model is also available as OEM PCB board.


Since hardware is based on MCU platform, it runs on company developed custom firmware. Communication between host and reader is provided through high speed direct access FTDI chip features. At core communication level device uses company developed, proprietary communication protocol, which is well documented in SDK API reference.

Firmware has a lot of built-in complex functions which can be called via libraries provided in SDK API.  Most of functions are written to make “life easier”, like:

    • Multiple readers on same host support
    • Whole set of commands for MIFARE® card manipulation according to manufacturer’s specification
    • Different addressing schemes (Block, BlockInSector)
    • Key storage manipulation   (one way, write only, no reading of stored keys)
    • Different key applying modes (by index or scheme)
    • Value block manipulation
    • Treating whole card memory structure as linear space (very convenient for MIFARE Classic® cards)
    • NFC tags manipulation, NDEF format parsing in firmware
    • AES128 “on fly” hardware encryption built-in, which is the most important when working with complex DESFire security keys and cards
    • AES128 encryption of files and keys in DESFire cards
    • MIFARE Plus support
    • MIFARE Ultralight C support
    • APDU command structure support where applicable (ISO14443-4 layer)
    • Asynchronous sending of card UID from reader to host COM port when card is present; feature is user programmable
    •  and many more…

Main point about firmware is that all firmware functions can be called via communication protocol, too.

That fact moves usage of this device into other dimension, meaning that this reader can be used on almost any platform which has serial interface, by simply using communication protocol. So it can be freely used on PC, tablet, smart phone, embedded systems, Raspberry Pi, Beagle Board, MIPS boards, PLCs, Arduino and other platforms.

Firmware is regularly updated with new versions which include new features, improvements and bug-fixes, while preserving backward compatibility with older versions. That means your code is safe, there is no need for changes when new firmware comes out. All firmware upgrades are totally FREE and can be obtained through download section of company’s website.

Software Development Kit (SDK) package 

Reader comes with fully featured SDK which consist of external libraries, software examples with source codes, documentation about API reference and communication protocol and some useful software tools.
Libraries are cross-compiled for various platforms and regularly supported are Windows x86/x64 and UWP, Linux x86/x64, Mac OSX x64, ARM/ARM HF and Arduino.
Other platforms can be supported as custom release, on customers demand, depending on existence of project or partnership relation.
Software examples are divided in three stages according to complexity, with some new additions of NFC examples.

All examples are written for all major developing platforms and languages, like:

    • Java (and Java Applet example),
    • JavaScript (unique feature, convenient for PHP usage),
    • Lazarus,
    • Borland Delphi,
    • C++ Borland Builder,
    • Microsoft® Visual .NET family: C++, C#, VB
    • Python
    • Arduino IDE examples

Other programming languages examples can be obtained on customer demand, , depending on existence of project or partnership relation.

Software package includes set of very useful applications intended for everyday use, like:

    • Application for programming and manipulation of NFC compliant cards like NTAG and MIFARE Ultralight®, with source code included.
    • Android NFC phone App - Android NFC phone Application for MIFARE® card reading. Write a card with uFR, read it with NFC phone!
    • Card formatter - application for card/tag formatting and programming
    • uFR2FileSystem - keyboard simulation, card data reading, card data parsing into several formats and sending data to MySQL database via HTTP.
    • Application for NTAG and MIFARE Ultralight® card programming and manipulation.
    • Application for creating and writing common NDEF messages into NFC tags and cards
    • Reader Keys application – for easy manipulation of  keys stored in reader
    • Application for managing of DESFire cards
    • Examples of credit card use with reading of public data
    • Shell like environment for easy testing and automation
    • Web extensions for Chrome, Firefox and Opera

Documentation contains fully explained API reference and communication protocol reference with real “hands-on” byte level examples for implementing communication protocol. However, API is much more comfortable and recommended way of implementation. Where not possible, implementation of communication protocol is very good alternative.

All libraries, software examples, tools and documents are regularly updated. They are totally FREE and can be obtained through download section of company’s website.

Our tech support team is available to assist with all inquiries you may have. After submitting a free technical support ticket, you should receive a response within two to fifteen days, depending on the intricacy of your inquiry. Please refer to our premium technical support plans for swift assistance.

We can also provide custom solutions based on each customer's needs, so please free to contact us for any question or further help regarding your projects and implementation.

Software package and documentation available for free download at our official website.
More Information
Hardware upgrades RF Booster, SAM Slot
Technical Specification

Specification brief

Operating frequency

13.56 MHz

Reading range

Depending on antenna geometry and reader configuration, the operating distance is 2-8cm (0,78"-3,15")

Read/Write speed

Up to 424 kbps

Supply current

150mA (operating)

Supply voltage


Supported cards and tags

Type A (Hardware + Software), Type B (Hardware)

Supported cards: MIFARE Mini®, MIFARE Classic® 1K / 4K, MIFARE Ultralight® / Ultralight® C, NTAG2xx, MIFARE DESFire® EV1, MIFARE Plus®

NFC support

Yes *


YES, Hardware


AES128 (hardware, by reader's firmware), DES/3DES (software, by the library)

Connection and power supply

USB 2.0 port, power supplied through USB port


with Java, Java Applet, JavaScript, Lazarus, Delphi, C + + Builder, Microsoft® Visual C++ .NET, Microsoft® Visual C #, Microsoft® Visual Basic .NET

Supported Operating Systems

Microsoft® Windows™, Linux®, OS X, Android ****


ISO/IEC 14443A & B, ISO/IEC 18092

Related Equipment

USB cable, Free software download

Optional equipment

RF signal booster, SAM slot


0.05kg net


16cm x 12.6cm x 3.2cm (6,3" x 5" x 1,2")

Operation temperature

-10 +50 ° C


Cards, keyfobs, or tags


24 months


Packaging & Delivery

Package content

One uFR Classic NFC Reader Writer Set Includes:

1 x uFR NFC Reader Writer
1 x USB cable
5 x Card/tag samples - optional


Software Support Software Development Kit (SDK), Executable Software Tools, Hardware-Integrated Software, Open-source Software Support, Updateable Firmware, Dedicated Libraries
Development kit No
Manufacturer Digital Logic Ltd
Brand μFR D-Logic
Device housing type OEM - no housing
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RF Booster, SAM Slot
Software Development Kit (SDK), Executable Software Tools, Hardware-Integrated Software, Open-source Software Support, Updateable Firmware, Dedicated Libraries