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  • Dual Communications Interface Ports
  • Populated with Dual USB to Serial Converters
  • Communicates with Two PCs Simultaneously over USB
  • Supports Many Communication Expansion Options Including:
    • Ethernet, WiFi TCP/IP, and WiFi MQTT with Encryption
    • Bluetooth, RS-485, RS-232, and Long Range Wireless
  • Eight 5V I2C Communication Ports
  • 2-Amp Power Supply Shared Among All 8 I2C Ports
  • I2C Bus Scanning, I2C Write, and I2C Read Commands
  • I2C Port Switching and I2C Write Read Commands
  • Test, Control, and Learn I2C Communications
  • Connect Sensors for Monitoring Applications
  • Control Relays, Pumps, Lights, and More
  • Long-Range Wireless I2C Upgrade Option
  • Integrated ProXR Enterprise Command Set


SKU: PR54-11 UPC: 689860072572 Categories: , ,


UX8 – The Ultimate USB to I2C Converter Adapter

Introducing the UX8, the world’s most powerful and expandable USB to I2C Converter.  With Eight I2C Expansion Ports and Two Interchangeable Communications Ports compatible with Digi XBee®, this powerful I2C adapter offers the highest possible conversion speed with the most efficient command set available.  Communications modules may be interchanged for your choice of communication requirements.  Based on the endNode architecture, this controller provides an excellent platform to help simplify communications to otherwise complex I2C devices.  Over a year in development, this device served as the development platform for our endNodes architecture, which includes an incredible command set for relay control, far beyond I2C conversion.  New features include hardware I2C communications now supporting speeds up to 700KHz.  Set the communications speed of each I2C Port as part of Device Configuration.  This device now includes a new command set that simplifies read and write operations to I2C devices.  New I2C Bus Scan functions scans and reports all detected devices on each I2C port in less than 1 Second.

An I2C Converter with Brains: endNode Architecture & ProXR Enterprise

We’ve also added ProXR Enterprise to the command set, which is our most powerful relay control command set to date.  Capable of controlling up to 1,024 relays using 8 I2C ports, this is our most expandable relay controller we have ever manufactured. Designed to work with all MCP23008 and MCP23017 I2C Relay Controllers, ProXR Enterprise adds powerful commands for turning relays on or off, toggling the state of relays, pulsing relays, and controlling relays in groups.  ProXR Enterprise also offers powerful relay timer capabilities to activate relays for a duration of time or to trigger different commands when timers finish their counting cycle.  Integrated Macros make it possible to send a simple command to execute a list of up to eight commands in the background.  Powerful startup functions allow you to execute commands when power is first applied to the controller in addition to complete power-up relay state control.  Integrated Non-Volatile FRAM memory allows unlimited read/write capabilities without memory degradation and no battery backup required.  FRAM memory keeps track of relay status, timers, macros, and many important system settings.  New Relay Counters control relays in patterns using Counter Increase and Decrease functions.  Relay Counters can be used for efficient lighting control, emergency lighting, or signage applications.  Automatic and Manual Relay Refresh Modes allow you to send relay control commands without affecting relays.  When you ready, simply send a refresh command and refresh every relay connected to the controller.

The Best I2C Converter with Eight Hardware I2C Ports

With 8 on-board I2C Ports and up to 2 Amps Shared Among All Ports, the UX8 offers a powerhouse of expansion options.  Connect Relays, GPIO, Gas Sensors, Temperature Humidity Sensors, Thermocouples, and 4-20mA current loop input output controllers.  Expand anytime to include voltage detection, current monitoring, programmable FET control, pulse width modulation, and much more.  The UX8 offers more expansion and compatibility than previous generation controllers.  The UX8 is future proof and ready to talk to the next generation of sensors and controllers without the need for firmware updates.

I2C Converter with Two Digi XBee® Compatible Communications Ports

The UX8 Includes New Wireless Protocols for Long Range Wireless Communications up to 2 Miles.  Send commands to the UX8 from a modem.  The UX8 will process your command requests and send a confirmation message back once complete.  The UX8 Supports Select Digi 900MHz, 868MHz, and 2.4GHz Communications Options for worldwide compatibility with the best possible range legally allowed.  The UX8 is ready for network communications as well.  WiFi Option Supports WiFi TCP/IP and WiFi MQTT Communications for direct control over the internet using encrypted data transmission.  Of course traditional technologies are also supported, including Bluetooth Virtual COM Port, RS-232, RS-485, and Ethernet Communications Modules.

I2C Converter Re-Engineered

The UX8 offers new, more powerful commands that execute faster than previous generation controllers including I2C Bus Scan, used to displays all devices connected to a I2C port.  New I2C converter commands for I2C Write, I2C Read, and I2C Write/Read operations, which are now executed using hardware I2C ports rather than software emulated ports found in previous generation controllers.  The new hardware I2C ports offer I2C Bus Speeds up to 700KHz per I2C Port.  I2C Port Switching and Communications is now executed as a single command, offering incredible speed for switching ports and executing read/write operations.

New I2C Software for Windows

nodeLynk Master Adapter

This is a nodeLynk Master adapter.  nodeLynk Master adapters speak to a chain of nodeLynk devices using I2C communications.

What is nodeLynk?

Chain expansion devices using nodeLynk. Connect a wide variety of accessories to expand the capabilities of a nodeLynk compatible controller.  Use nodeLynk to add Relay Controllers, Sensors, PWM Drivers, Displays, and a wide variety of 4-20mA, 0-10V ADCs and DACs, as well as a wide array of TTL & Isolated GPIO devices.  All nodeLynk devices use I2C communications to chain devices together.  nodeLynk is an easy way to expand functionality without soldering.  nodeLynk allows expansion in seconds so you can focus on your software and firmware development.

XBee® is a registered trademark of Digi International.


ZUSB USB Module Side Entry


Our USB interface module makes it easy to control our devices using the USB port.  Simply plug into any available USB port and start controlling our devices using standard serial commands.  NCD USB Interface modules feature genuine FTDI USB to Serial Converter Chips, the very best in the industry.


USB Compatibility Notes

This device is compatible with USB communications, which will mount as a Virtual COM Port on your computer.  All device functions will be accessed via the virtual com port using standard serial commands.  The default baud rate is 115.2K Baud for most NCD devices.  USB Drivers are included with most versions of Windows, but users of other operating systems may want to download the latest drivers directly from the FTDI web site.


Documentation Downloads


Mechanical Drawing

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Product Identification
SKU: PR54-11
UPC: 689860072572
Country of Origin: US
HTS Code: 854231
1+ Pieces
10+ Pieces
25+ Pieces
100+ Pieces

endNodes Port 1 Communication OptionsChange

Please choose a communications technology for Port 1. USB is the default communications technology.

endNodes Port 2 Communication OptionsChange

Please choose a communications technology for Port 2. USB is the default communications technology.


We Customize Just for You!!

NCD offers many custom IoT electronic design services to help tailor our product to your exact needs.  Whether you are looking for custom firmware, circuit board modifications, metal enclosures, or industrial color printing, we can help you with a wide variety of design services.

Custom IoT Electronic Design Services Process

Most of our users purchase off-the-shelf hardware for initial testing.  Once everything is working, they contact us to build a custom solution which may include specialized changes to the board, firmware, connectors, etc.  Custom boards have many advantages such as reduced wiring, easy installation, small size, less power consumption, and in some cases, an overall reduction in product cost.  Custom IoT Electronic Design Services will have your company name and logo on the board as well as the enclosure.

Customized IoT Electronics

NCD engineers can help build a customized solution for your particular application based on the designs you see on our website.  We can combine devices onto a single board, change the shape, or even some of the components to meet your exact needs.  We also provide turn-key metal enclosures with powder coating and full-color printing on the top side starting at just $500 for setup!  We have more than 20 years of experience in electronics design and manufacturing.  All of our products are designed and manufactured in the USA, so we are here to support the products we make.  We only ask that our customers prototype their needs using our existing products before we customize.

Customization Guidelines

  • Custom designs should be based on our existing product because we can’t build rockets or electric cars over here!
  • We do not provide customization services if it involves the introduction of a new or untested technology.
  • Custom engineering fees depend on your requirements, so please contact us for a quote!
  • We maintain ownership of all designs, including our customized designs as they are based on our existing Design.
  • We will only ship the customized product to you or your authorized agents.
  • We have an NDA available if needed.
  • The turn-around time is about 2-3 weeks.
  • We specialize in low-volume designs, no quantity is too small!
  • We have the ability to scale to large volumes as needed.

Getting Started with Product Customization

All you have to do is contact us and we will walk you through the process from beginning to end, based on your individual needs.  Some people are surprised at how fast we finish CAD design (usually a few hours), but keep in mind, we still have to build your design, which takes considerably more time.  When we customize product, here are the general services we provide:

  • We design the circuit board.
  • We communicate with our customers throughout the customization and manufacturing process.
  • We manufacture surface mount stencils and circuit boards.
  • We program our pick and place machines to build your boards.
  • We build a working sample and run it through our wave solder machine.
  • We test your custom IoT solution.
  • Once the design is finalized it won’t be possible to make changes during production (changes cost money and require us to repeat the above processes)
  • Once it meets all your requirements, we will start production as needed.
  • We work with our metal fabricators to design a metal enclosure if required.
  • You work with our artist to print the top side of the enclosure in full color with your company logo if required.

+MORE App customizations

We partnered with Blynk who have developed the +MORE app.  If you are interested in customization to their +MORE app then we're sure you will enjoy working with them as much as we did.  They can customize the user interface +MORE mobile app at your request.

  • Add new functionality and features to the mobile applications and web dashboard
  • Change/ add data visualizations options

Contact them today for custom App Development!

White-labeled mobile apps and dashboard

Blynk the developer of +MORE has a fantastic team of developers eager to help with your IoT applications.  They offer the following services.

We provide white-label IoT infrastructure:

  • Private IoT cloud
  • Branded mobile applications for remote monitoring and control
  • A branded web dashboard to manage fleet of your devices
  • Big Data analysis with actionable insights
  • Development of machine learning algorithms

Contact them today for all of your IoT cloud needs!

©2019 National Control Devices, LLC

Made in the USA
5 Year Warranty
Free Shipping on orders over $100
Free Shipping on orders over $100

To learn something new, take the path that you took yesterday. ~John Burroughs

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