1.5″ micro OLED Display

The uOLED-128G2 is a compact and cost effective display module using the latest state of the art Passive Matrix OLED (PMOLED) technology with an embedded GOLDELOX graphics processor that delivers ‘stand-alone’ functionality to any project.

Powerful graphics, text, image, animation and countless more features are built inside the GOLDELOX chip. The module is designed to work out of the box and you are now ready to write your code in 4DGL (a high level 4D Graphics Language) using the 4DGL-Workshop4 IDE (editor, compiler and downloader). This will save weeks even months of development time on your next embedded graphics project.

4DGL is a graphics oriented language allowing the developer to write applications in a high level language, syntax similar to popular languages such as BASIC, C and Pascal. The module offers modest but comprehensive I/O features that can interface to serial, analogue, digital, buttons, joystick, sound generation and Dallas 1-wire devices.

This module can be programmed using 3 different environments in the Workshop4 IDE. Designer, ViSi and Serial. Please refer to the Workshop4 Product Page for more information and documentation on these environments.

In short, the uOLED-128G2 offers one of the most flexible embedded graphics solutions available.

Information about the display module

  • Low-cost OLED display graphics user interface solution.
  • 128 x 128 resolution, 65K true to life colours, PMOLED screen.
  • 1.5″ diagonal size Active Area on the OLED Display.
  • No back lighting with near 180° viewing angle.
  • Easy 10 pin interface to any external device:
    • VCC, TX, RX, GND, RESET, IO1, IO2, 3.3V.
  • Powered by the 4D-Labs GOLDELOX graphics processor highly optimised for 4DGL, the high level 4D Graphics Language.
  • 2 x GPIO ports supports:
    • Digital I/O
    • A/D converter with 8/10 bit resolution
    • Complex sound generation
    • Dedicated RTTTL tune engine
    • Multi-Switch Joystick
    • Dallas 1-Wire
  • 10K bytes of flash memory for user code storage and 510 bytes of RAM for user variables (255 x 16bit vars).
  • 1 x Asynchronous hardware serial port, TTL interface, with 300 baud to 600K baud.
  • On-board micro-SD memory card adaptor for storing of icons, images, animations, etc. Supports 64MB to 2GB micro-SD memory cards.A SPI compatible micro-SD card is required.
  • Comprehensive set of built in high level 4DGL graphics functions and algorithms that can draw lines, circles, text, and much more.
  • Display full colour images, animations, icons and video clips.
  • Supports all available Windows fonts and characters (imported as external fonts).
  • 4.0V to 5.5V range operation (single supply).
  • Module dimensions: 36 x 36 x 13.7mm (including corner plates).
  • Weighing ~10g.
  • Display Viewing Area: 27 x 27mm
  • Back plate with 4 x 3mm holes for mechanical mounting.
  • RoHS Compliant.
  • CE Compliant (On Modules with CE Mark).

The uOLED-128-G2 includes the following items:

  • uOLED-128-G2 Smart Display Module
  • 150mm 5-way Female-Female Jumper Cable
  • 5 way Male-Male Adaptor
  • Getting Started Guide Available as a Download

If you are a first time user and just beginning your development, we strongly recommend purchasing a Starter Kit of this same model as it includes additional items that allow you to get started with your development immediately.

Starter Kit part number is SK-128G2.


Diagonal Display Size INCHES





100 cd/m2





Operating Ambient Temperature

-35°C to +75°C

Storage Temperature

-40°C to +80°C


10 pin Interface

Display Viewing Area (mm)

27.0 x 27.0

Module Dimensions (mm)

35.80 x 36.00 x 13.70



Country of origin


CCCN / tarif code


ECCN export control code






Package Dimensions L x W x H (mm)

70 x 50 x 30

Product Weight (g)


Weight with Packaging (g)




CE Mark


Supply Voltage

4.0V-5.5V DC

Supply Current


Frame Rate

12.8 fps



Processor Capability

210K Pixels / second

SD Card Slot

Yes – RAW Only Support. SPI Compatible microSD Cards Only




510 bytes




2 x GPIO


Used for SD Card Slot

Codeless Programming



4D Workshop4 IDE

Serial Speed

300 to 600K baud

Serial Interfaces


8-bit Parallel Transfer


Viewing Angle

Standard Viewing Angle


Viewing Area: 27.0 x 27.0 mm

Module Width: 35.80 mm

Module Height: 36.00 mm

Module Depth:13.70 mm

Module Weight: 10 g


Workshop4 is a comprehensive software IDE for Microsoft Windows that provides an integrated software development platform for all of the 4D family of processors and modules. The IDE combines the Editor, Compiler, Linker and Downloader to develop complete 4DGL application code.

All user application code is developed within the Workshop4 IDE.


Workshop4 includes four development environments for the user to choose based on application requirements or even user skill level.


Make complex widget design, simple.

Smart Widgets Editor is a powerful utility which enables the generation of Smart Widgets.

  • Users can create complex widgets with up to six layers, including the layer for the base image. The order of the layers can be arranged as desired.
  • Each layer can contain one or more images arranged in sequence that can be manipulated in a variety of ways. Image manipulation options include horizontal motion, vertical motion, and angular motion. Additionally, the transparency of a layer can be set.
  • Two or more layers can be linked to produce synchronized movements of images. This enables the generation of complex widgets with multiple moving parts. Clockwork feature is also supported. This enables users to quickly generate clock widgets.
  • Each layer can have a numeric part which can display numbers in various fonts and formats. Alternatively, the numeric part can be a fixed sequence of text.
  • The output frames can be utilized using any of the supported Workshop4 environments.


Genie Magic is an extension to ViSi-Genie, which is available in Workshop4 PRO. Genie Magic allows the User to add 4DGL code to various points in the ViSi-Genie backend code, which allows Users to take full advantage of the power of 4DGL, while retaining the speed and convenience of ViSi-Genie and its defined communication protocol.

Genie Magic allows you to enter 4DGL code in the form of Events, Code and Objects, along with various touch related additions too, giving you to the power to achieve advanced GUI’s in ViSi-Genie without having to write the full code yourself.

Genie Magic is fully supported by the genieArduino and geniePi libraries, making communication with an Arduino or Raspberry Pi host even more powerful.

When using Genie Magic in combination with the Smart Widget Editor, it is possible to use the Smart Widgets Editor tool and Smart Widgets to create other graphical user interface elements such as:

  • Dropdown Menu

  • Side Menu

  • ‘Carousel Slider’

  • List Box

  • Dock Menu
  • Quarter-Rotary Menu

  • Fading Slide-To-Unlock Button

  • Spectrum With Transparency

  • And Many Others


Compatibility: Workshop4 is a Windows-only product. It is compatible with Windows 8 through to Windows 11.

Note some older OS such as ME, Vista, XP and 7 have not been tested for some time and are not supported by Microsoft anymore; however, they may still work.
Legacy support updates for the older OS may not be possible, depending on what issues are found. For best results, run a current Windows OS. It is possible to run Workshop4 under a VM on Linux or Mac. However, it is up to the User to set this up.


We are delighted to offer volume discounts to qualified customers and organizations.

Our dedicated Volume Sales team will address your specific requirements and help you get an accurate quotation in a timely manner.

Order Now


  • 1.5″, 128 x 128 pixels, compact and cost effective Intelligent Display Module using the latest state of the art Passive Matrix OLED (PMOLED) technology with an embedded GOLDELOX graphics processor that delivers ‘stand-alone’ functionality to any project.
  • Starter Kit is available and recommended for new users.
  • See below for additional product features and details.


We are delighted to offer volume discounts to qualified customers and organisations.

Starter Kits and Accessories

  • SK-128G2-AR Starter Kit for Arduino projects

    This Starter Kit includes everything you need to integrate the uOLED-128-G2 into any Arduino project, and it is ideal for first-time users. The SK-128G2-AR Starter Kit includes:
    • UOLED-128-G2
    • uSD-4GB-Industrial
    • UUSB-PA5-II
    • 150mm 5 way Female-Female jumper cable with 5 way Male-Male adaptor


  • SK-128G2 Starter Kit for first-time users

    This Starter Kit includes everything you need to integrate the uOLED-128-G2 into any project, and it is ideal for first-time users. The SK-128G2 Starter Kit includes:
    • uOLED-128-G2 SMART OLED Display Module
    • 4GB Industrial microSD Card
    • uUSB-PA5-II
    • 150mm 5 way Female-Female jumper cable
    • 5 way Male-Male adaptor


  • 4D-UPA

    Universal Programming Adaptor for IoD-09, gen4 Display Modules and uLCD-Display Modules for connecting module to a computer using a microUSB Cable


  • 5 Pin Ribbon Cable

    5-way Female to Female Ribbon Cable with Male to Male Adapter

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