4.3″ DIABLO16 TFT LCD Intelligent Display

The uLCD-43D/DT/DCT is a powerful 4.3″ TFT LCD Intelligent Display, powered by the 4D Systems DIABLO16 Processor

An extensive range of hardware and software peripherals have been integrated into the design, to give the user freedom to adapt the module to suit almost any application. Features include; a 4.3″ TFT 480×272 touch screen display, audio, micro-SD card connector, an expansion port along with a series of GPIO, I2C, SPI, and UART serial comms.

The uLCD-43D/DT/DCT serves as the perfect solution to be deployed at the forefront of any product design, requiring a brilliance of colour, animation or images on a 4.3″ widescreen display.

  • uLCD-43D (Non Touch version)
  • uLCD-43DT (Resistive Touch version)
  • uLCD-43DCT (Capacitive Touch version)

The uLCD-43D (DIABLO16) range was designed to be a drop in replacement for the uLCD-43P (PICASO) range, and features the same mechanical dimensions for ease of upgrading. There are however some electrical differences. Please refer to the Datasheet of the uLCD-43D for more information. This is relevant for all models, non touch, resistive touch and capacitive touch.

Information about the display module

  • Powerful 4.3″ Intelligent LCD-TFT display module powered by DIABLO16.
  • 480 x 272 Resolution, RGB 65K true to life colours, TFT Screen with integrated 4-wire Resistive Touch Panel
  • Easy 5 pin interface to any TTL Serial Host:
  • 6 banks of 32750 bytes of Flash memory for User Application Code and Data
  • 32Kb of SRAM purely for the User.
  • 16 General Purpose I/O pins for user interfacing, which include 4 configurable Analog Inputs.
  • The GPIO is variously configurable for alternative functions such as:
    • 3x I2C channels available
    • 1x SPI dedicated for SD Card and 3x configurable SPI channels available
    • 1x dedicated and 3x configurable TTL Serial comm ports available
    • Up to 6 GPIO can be used as Pin Counters
    • Up to 6 GPIO for PWM (simple and Servo)
    • Up to 10 GPIO for Pulse Output
    • Up to 14 GPIO can be configured for Quadrature Encoder Inputs (2 channels)
  • On-board micro-SD memory card connector for multimedia storage and data logging purposes.
  • Full sided SD memory card connector is available for volume purchases.
  • DOS compatible file access (FAT16 format) as well as low level access to card memory.
  • Dedicated raw PWM Audio pin driven by WAV files from micro-SD card.
  • On-board audio amplifier with a tiny 8Ω speaker for sound generation and WAV file playback.
  • Display full colour images, animations, icons and video clips on chosen 4D Systems display.
  • Supports all available Windows fonts.
  • 4.0V to 5.5V range operation (single supply).
  • Module dimensions: 105 x 67.3 (including tabs) – See drawing, Weighing ~89 g.
  • Display Viewing Area: 95.04 x 53.85mm
  • 4x mounting tabs with 3.0mm holes for mechanical mounting.
  • RoHS and CE Compliant.

The uLCD-43DCT includes the following items:

  • uLCD-43DCT Intelligent TFT-LCD Module
  • 150mm 5 way Female-Female jumper cable
  • 5 way Male-Male adaptor
  • Getting Started Manual 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-43DCT.


Diagonal Display Size INCHES





~500 cd/m2

Backlight LEDs



Capacitive -Touch



Operating Ambient Temperature

-20°C to +70°C

Storage Temperature

-30°C to +80°C


5 pin Interface

Display Viewing Area (mm)

95.04 x 53.86

Module Dimensions (mm)

67.10 x 105.40 x 16.20



Country of origin


CCCN / tarif code


ECCN export control code






Package Dimensions L x W x H (mm)

167 x 126 x 41

Product Weight (g)


Weight with Packaging (g)




Is Part Static Sensitive?


Lead Free


Moisture Sensitivity Level


CE Mark


Supply Voltage

4.0V-5.5V DC

Supply Current


Frame Rate

9.3 fps



Processor Capability

1220K Pixels / second

SD Card Slot

Yes – RAW or FAT16 Support. SPI Compatible microSD Cards Only


6 banks of 32KB




3 x Channels


16 x GPIO


3 channels available

Codeless Programming



4D Workshop4 IDE

Serial Speed

300 to 2187500 baud

Serial Interfaces

1 x dedicated and 3 x configurable

8-bit Parallel Transfer


Viewing Angle

Standard Viewing Angle


Viewing Area: 95.04 x 53.86 mm

Module Width: 105.40 mm

Module Height: 67.10 mm

Module Depth:16.20 mm

Module Weight: 89 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


  • 4.3″, 480×272 pixels, Intelligent Display Module with Capacitive-Touch.
  • Ready to become the GUI for your target application and capable of being an interface controller for a number of applications.
  • Starter Kits available for first time users.
  • Bundles with hardware interface boards for Arduino and Raspberry Pi also available.
  • See product description below for more details.


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

Starter Kits and Accessories

  • SK-43DCT-PI Starter Kit for Raspberry Pi projects

    This Starter Kit includes everything you need to integrate the uLCD-43D-Pi into any Raspberry Pi project, and it is ideal for first-time users. The SK-43DCT-PI Starter Kit includes:
    • uLCD-43D-Pi
    • 4D Serial Pi Adaptor
    • 4GB Industrial microSD Card
    • 150mm 5 way female jumper cable with 5 way Male-Male adaptor


  • SK-43DCT-AR Starter Kit for Arduino projects

    This Starter Kit includes everything you need to integrate the uLCD-43DCT into any Arduino project, and it is ideal for first-time users. The SK-43DCT-AR Starter Kit includes:
    • uLCD-43DCT
    • 4D Arduino Adaptor Shield II
    • uUSB-PA5-II
    • 4GB Industrial microSD Card
    • 150mm 5 way Female-Female jumper cable with 5 way Male-Male adaptor


  • SK-43DCT Starter Kit for first-time users

    This Starter Kit includes everything you need to integrate the uLCD-43DCT into any project, and it is ideal for first-time users. The SK-43DCT Starter Kit includes:
    • uLCD-43DCT 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
  • GEN4-IB

    • Interface Board for gen4 Intelligent Display Modules
    • Used to connect module to a uUSB-PA5-II or 4D Programming Cable

Related Products

  • 4.3" Intelligent TFT-LCD Module | 480x272 pixels | Diablo16 Processor | Capacitive Touch | Hardware Interface for Arduino


  • 4.3" Intelligent LCD for Raspberry Pi | 480x272 pixels | Capacitive Touch | DIABLO16 Processor