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Base HD - RFID NFC Reader

Access Control & Time Attendance RFID NFC Reader

Base HD is one of our all-round NFC RFID Readers which implements the best from our development tools (µFR Series) and adds time attendance and access control functions.
What sets this device apart from our other devices is the fact that it can operate up to 320 meters away from the PC without an additional power supply, powered only through the PC’s USB port.
It uses RS-485 communication protocol which is totally transparent to system and user, which results in the fact that this reader can be used exactly the same way as standard uFR Classic NFC RFID reader writer.
The same Software Development Kit API functions, drivers, and protocol can be used.

Base HD is a low-power RFID device and it uses only +5V USB power for operation.
An intermediate transceiver device converter for USB/RS-485 is included in the package.


Base HD also has built-in relays, so they can be triggered by software, for example, to lock or unlock the door lock mechanism.

Docs & Software Download

Integrated components

Base HD NFC RFID Reader with built-in Relays for Access Control

  • Real-Time Clock (RTC)
    • Provides added security against changing the log’s date and time
  • User-configurable EEPROM
    • Enables writing of certain data (user data, licenses, certificates, etc.) into the device.
    • Read-only access
    • Writing enabled only with a password
  • Buzzer (Beeper)
    • User controllable built-in speaker
    • Sound on Reading and Write events
  • Relay
    • For triggering electronic lock mechanism (used for access control)

Base HD is an NFC compatible Contactless Smart Card and Tag RFID Reader Writer – programmer intended for use with MIFARE® and other ISO14443A/B compatible cards, tags, key fobs, stickers, wristbands.

Base HD – NFC RFID Reader Writer fully supports both 4-byte and 7-byte UIDs and anti-collision mechanism. It also supports NFC Forum Type 2 and tags like NTAG and Ultralight family.

Package contains fully featured API with examples, libraries, development tools, and software for everyday use. Libraries for Windows (“*.dll”) and Linux (“*.so”) OS platforms are also included. The reader acts as a serial interface device, so it is visible at each platform. It is successfully implemented on Mac, Raspberry Pi, BeagleBoard, and Android OS ( up from 3.2 Honeycomb version).

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

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


The software package includes a set of very useful applications intended for everyday use, like:

  • Application for programming and manipulation of NFC compliant like NTAG and MIFARE Ultralight®, with source code, included.
  • Android NFC phone App – Android NFC phone Application for MIFARE® reading. Write a card with uFR, read it with an NFC phone!
  • Formatter – application for card/tag formatting and programming
  • uFR2FileSystem – keyboard simulation, data reading, data parsing into several formats, and sending data to MySQL database via HTTP.
  • Application for NTAG and MIFARE Ultralight® programming and manipulation.
  • Application for creating and writing common NDEF messages into NFC tags
  • Reader Keys application – for easy manipulation of keys stored in the reader

Our support team always provides quick response and custom solutions based on each customer’s needs.

Downloads: Software examples with SDK, AIS Hotel API, and configuration

Operating modes

Base HD NFC RFID Reader Writer can work in two basic modes: autonomous and non-autonomous.

In non-autonomous mode device acts as all other readers from the uFR series, like Classic, Nano, Advanced. The same protocol, libraries, Software development kit API, and examples are used for this purpose.

A significant difference is that Base HD devices can work on installations where long cable runs are a must. So, for example, you can establish a PC-Base HD communication link with 320m (1000) ft cable using only USB power.

In addition, Base HD RFID NFC Reader has a built-in access control IO module, which has the following functionalities:

  • Door strike lock contacts
  • Push to open button contacts
  • NO & NC relay contacts
  • Door state contact inputs

When used in autonomous mode, the device can act independently, without the connection to the host. Only USB or other types of the power supply is needed (5V DC).

Device stores card related events in non-volatile memory. Each event is also sent asynchronously to the host as a Real-Time Event (RTE).

The device can store up to 16384 separate events. After it’s buffer is overflowed, it starts to erase the oldest events in order to free memory for new forthcoming events.

  • Electronic payment systems
  • Identification systems
  • Access control systems
  • Subscription services
  • Banking systems
  • Digital content system
  • Customer loyalty systems
  • Vending machines
  • Time & attendance
  • Machine work attendance
  • NFC card and tag programming
  • NFC NDEF records management
  • Network access control
  • Inventory management
  • Software login management
  • Automatic fare collection
  • Public transport terminals
  • Cashless payment
  • Parking systems
  • Reception desk services
  • Event visitors attendance
  • Authentication and authorization
  • Libraries, museums, stadium events
  • Identity verification, data exchange & contactless transaction
  • Useful for the binding device to software license
  • Supporting multiple OS (Win, Linux, Android)
  • USB compliant interface
  • Operating Frequency: 13.56MHz
  • Proximity read/write speed up to 424 kbps
  • Built-in antenna for contactless tag access, with a reading distance of up to 60 mm
  • Supports MIFARE® and other ISO 14443 Type A/B
  • Supports ISO18092 NFC tags
  • Built-in anti-collision feature
  • RFID Reader locking by passwords and keys
  • Application Programming Interface:
  • Virtual COM through FTDI
  • User controllable LEDs
  • Three-year warranty
  • NFC cards and tags reading/writing (programming) 
  • NFC NDEF Record writing: MIME types, URI types, vCard, SMS, Phone, URL
  • Card formatting
  • Card linear space emulation
  • Card block direct access
  • Card sectors and blocks indirect access
  • Card Keys and Access Bits management
  • Block values management (increment/decrement)
  • Asynchronously sending of Card UID to COM port (feature programmable)
  • DES and 3DES Software Encryption
  • Optional APDU structure (application protocol data unit) with examples of the Credit Card use in public data reading
  • Shell-like environment for easy testing and automation
  • Web browser extensions for Chrome, Firefox, and Opera
  • Digital Signing source code examples: contactless signing of digital documents with PKI (public key infrastructure) certificates

Downloads: API Documentation, µFR COM Protocol, Software source code examples with SDK

The documentation contains a detailed explanation of API and communication protocol reference with actual byte-level examples for communication protocol implementation. Our API provides a very comfortable way of implementation, and we highly recommend it. When API implementation is not possible, a communication protocol is a very good alternative. We provide regular updates for all libraries, firmware, examples, tools, and documents. Updates are FREE and are available for download from the official Digital Logic GitLab repository

Our support team always provides prompt responses. Depending on the inquiry complexity, you can expect an answer in no more than 24 hours.

We are open to custom development requirements based on specific customer needs. Feel free to contact us for any questions or further assistance regarding your projects and implementation.

Base HD hardware features
Feature Description
Operating frequency  13.56 MHz
Read range Operating distance is 2o-80mm (0,78”-3,15”), depending on the antenna geometry and reader configuration
Supported cable length  Up to 320 meters (1050 feet)
Supply current  150mA (operating)
Supply voltage  5V
Supported cards and tags MIFARE® family: MIFARE Mini®, MIFARE Classic® (1K, 4K, EV1), MIFARE Ultralight®, MIFARE Ultralight C®, MIFARE PLUS® (2K, 4K), MIFARE DESFire® (Light, 2K, 4K, 8K, EV1, EV2)

NTAG® family: NXP NTAG® 2xx Type 2 (210, 213, 215, 216 Tag Tamper), NXP NTAG® 4xx DNA Type 4 (413, 424)

SmartMX® family: NXP JCOP® Java Card (J3A040, J3A081, J3H145, JC30M48CR)

Connection and power supply  USB port
Software Library and SDK for Java, Java Applet, JavaScript, Node JS extensions, Lazarus, Borland Delphi, C, C + + Builder, C++ WxWidgets, Microsoft® Visual C++ .NET, Microsoft® Visual C #, Microsoft® Visual Basic .NET, PHP, Python, and Arduino IDE examples
Supported Operating Systems Microsoft® Windows™, Linux®, macOS, Android
Smart Card Interface  ISO14443 Type A & B, ISO18092 
Built-in components  Buzzer, Real-Time Clock (RTC), EEPROM, Relay
Accessories Cards, key-fobs, labels, wristbands, tags
Size & Weight 
Model Dimensions (mm) Device Commercial Set
Base HD 86 x 54 x 9 150 g 311 g