3.5″ DIABLO16 Display Module Pack for the Arduino
This 4D Systems Display Module Pack for the Arduino (and variants) is made up of a uLCD-35DT Display Module and an 4D Arduino Adaptor Shield to easily connect an Arduino to the 4D Systems Display.
This Display Module Pack enables an Arduino user to quickly connect the 4D Arduino Adaptor Shield to their Arduino, connect the 5 way cable between the Adaptor and the Display Module, and be connected in seconds to start programming their new 4D Systems Display.
The uLCD-35DT can be configured in a number of ways using the 4D Systems Workshop4 IDE. There are 4 programming Environments to choose from, to enable the widest range of options possible and to suit a wide range of Users and projects alike.
Communication to the Display Module is performed via the Arduino’s hardware serial port.
A single digital on the Arduino is utilised for an external reset for the display.
For a detailed listing of the capabilities of the display module in this Arduino Pack, please refer to the datasheet for the display itself, available from the Product Page of the uLCD-35DT.
For support relating to the Arduino Hardware, please refer to the Arduino Support Forum.
Information about the display module
- Powerful 3.5″ Intelligent LCD-TFT display module powered by DIABLO16
- 480×320 HVGA 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: VCC, TX, RX, GND, RESET
- 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 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. HC memory card support is also available for cards larger than 4GB. An SPI Compatible micro-SD card is required
- Alternative micro-SD memory card connector is available on special orders
- 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
- 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: 57 x 85.2 x 15.8mm (including corner plates)
- Weight ~50 g.
- Display Viewing Area: 49.7 x 77.0mm
- 4x corner plates with 2.6mm holes for mechanical mounting
- RoHS Compliant
- CE Compliant
The uLCD-35DT-AR includes the following items:
- uLCD-35DT Intelligent Display Module
- 4D Arduino Adaptor Shield-II
- 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-35DT-AR.
SPECIFICATIONS
Diagonal Display Size INCHES | 3.5 |
---|---|
Resolution | 320×480 |
Brightness | ~216 cd/m2 |
Backlight LEDs | 1×6 |
Touch | Resistive-Touch |
Controller | DIABLO16 |
Operating Ambient Temperature | -20°C to +70°C |
Storage Temperature | -30°C to +80°C |
Connector | 5 pin Interface |
Display Viewing Area (mm) | 73.4 x 49.0 |
Module Dimensions (mm) | 56.90 x 97.60 x 15.80 |
RoHS? | Yes |
Country of origin | Australia |
CCCN / tarif code | 85312000 |
ECCN export control code | EAR99 |
TARIC Code | 8531209590 |
AHECC Code | 85312000 |
Package Dimensions L x W x H (mm) | 167 x 126 x 41 |
Product Weight (g) | 78 |
Weight with Packaging (g) | 162 |
REACH | Yes |
CE Mark | Yes |
Supply Voltage | 4.0V-5.5V DC |
Supply Current | ~250mA |
Frame Rate | 7.9 fps |
colours | RGB 65K |
Processor Capability | 1220K Pixels / second |
SD Card Slot | Yes – RAW or FAT16 Support. SPI Compatible microSD Cards Only |
Flash | 6 banks of 32KB |
RAM | 32KB SRAM |
I2C | 3 x Channels |
GPIO | 16 x GPIO |
SPI | 3 channels available |
Codeless Programming | Yes |
IDE | 4D Workshop4 IDE |
Serial Speed | 300 to 2187500 baud |
Serial Interfaces | 1 x dedicated and 3 x configurable |
8-bit Parallel Transfer | Yes |
Viewing Angle | Standard Viewing Angle |

SIZE & WEIGHT
Viewing Area: 73.4 x 49.0 mm
Module Width: 56.90 mm
Module Height: 97.60 mm
Module Depth: 15.80 mm
Module Weight: 78 g

WORKSHOP4 IDE
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.
DEVELOPMENT ENVIRONMENTS THAT SUITS ANY APPLICATION & USER LEVEL
Workshop4 includes four development environments for the user to choose based on application requirements or even user skill level.


WORKSHOP4 PRO
Make complex widget design, simple.
Smart Widgets Editor is a powerful utility which enables the generation of Smart Widgets.
GENIE MAGIC
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:

DOWNLOADS
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.
Documentation
DIABLO Processor Documentation
Arduino Libraries
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- 3.5″, 320×480 pixels, Intelligent Display TFT-LCD Module with embedded Diablo16 processor and Hardware Interface for Arduino.
- Suitable for fast and easy integration of any application or product being developed with the Arduino.
- Includes Arduino Adaptor Shield II for easy hardware interface to an Arduino.
- Starter Kits available for first time users.
- See product description below for more details.
We are delighted to offer volume discounts to qualified customers and organisations.
Starter Kits and Accessories
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