Programming Adaptor for Picaso/Diablo gen4 Display Modules

The gen4-PA (Gen4 Programming Adaptor) is compatible with all of the gen4 range of Intelligent Display modules which feature Picaso or Diablo16 graphics processors. It is included in the Starter Kit (SK) packs, and is a quick and easy way to interface and program the gen4 range.

The gen4-PA is a programming adaptor for the gen4 display module that also breaks out the signals found on the 30-way FFC cable coming from your gen4 display module. These signals are available via 2.54mm pitch (0.1”) pads around the edge of the gen4-PA. It also groups the common 5-way signals found on other 4D Systems products (and the gen4-IB), for easy interface to other products such as our -AR and -PI kits for the Arduino and Raspberry Pi.

The gen4-PA replaces the need for a separate standard programmer, such as the uUSB-PA5 or 4D Programming Cable. The gen4-PA has the circuitry found on the uUSB-PA5-II built into it, and features a microUSB jack, for connection to your PC. Cable is not included with the gen4-PA or in our Starter Kits, this needs to be purchased seperately.

The gen4-PA can be used for programming gen4 display modules, interfacing to a breadboard for prototyping, interfacing to Arduino and Raspberry Pi interfaces (see gen4 -AR and -PI kits), or for interfacing to virtually any host.

Information about the Adaptor

  • USB 2.0 compliant Full Speed 12Mbps maximum speed, Suspend supported.
  • Hardware or Xon/Xoff handshaking supported, 300bps to 2Mbps
  • UART supports 5, 6, 7, or 8 data bits, 1, 1.5 or 2 stop bits, odd/even/mark/space and no parity
  • Power on reset circuit
  • Virtual COM port drivers allow operation with existing COM port PC applications
  • USB powered
  • -40 to +85 degrees Celsius temp range
  • Traffic/Operation LED indicates board status
  • Breakout pads of all the signals found on the gen4 30way interface, in 2.54mm (0.1″) spacing
  • RoHS Compliant

How to determine which COM port is allocated to the gen4-PA

  • Go to Control panel and double click on the “System” Icon and the “System Properties” window will open up.
  • Click on the “Hardware” window tab and then the “Device Manager” button.
  • Go down the list and expand the “Ports (COM & LPT)” devices.
  • There you will see the COM port that has been allocated for the gen4-PA.
  • Take note of the COM port number (e.g. COM4) as you will need this when configuring the COM port for applications that need to communicate with the gen4-PA such as the Workshop4 IDE.

This product comes with:

  • gen4 Programming Adaptor


Operating Ambient Temperature

-20 to 70°C

Storage Temperature

-30°C to +80°C





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



Viewing Area:

Module Width:

Module Height:

Module Depth:

Module Weight: 3 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


  • Programming Adaptor for gen4 Series of Display Modules
  • Allows easy connection of gen4 Display Modules to a PC using a microUSB Cable
  • Provides full 30 pin breakout from the gen4 Display Modules


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

Starter Kits and Accessories

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    This Starter Kit includes everything you need to integrate the uLCD-24PTU into any Raspberry Pi project, and it is ideal for first-time users. The SK-24PTU-PI Starter Kit includes:
    • uLCD-24PTU
    • 4D Serial Pi Adaptor
    • uUSB-PA5-II
    • 4GB Industrial microSD Card
    • 150mm 5 way female jumper cable with 5 way Male-Male adaptor


  • SK-220RD-AR Starter Kit for Arduino projects

    This Starter Kit includes everything you need to integrate the uLCD-220RD into any Arduino project, and it is ideal for first-time users. The SK-220RD-AR Starter Kit includes:
    • uLCD-220RD
    • 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


    Out of stock

  • SK-24PTU Starter Kit for first-time users

    This Starter Kit includes everything you need to integrate the uLCD-24PTU into any project, and it is ideal for first-time users. The SK-24PTU Starter Kit includes:
    • uLCD-24PTU Display Module
    • 4GB Industrial microSD Card
    • uUSB-PA5-II
    • 150mm 5 way Female-Female jumper cable
    • 5 way Male-Male adaptor


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