gen4 Internet of Displays (IoD) Display Modules

The gen4-IoD (Internet of Displays) series of is part of the latest gen4 Range of modules Designed and Manufactured by 4D Systems.

The gen4 series was designed specifically for ease of integration and use, with careful consideration for space requirements and functionality.

This specific gen4 module features a 2.4” colour TFT LCD display, with Resistive Touch. It is powered by the WiFi enabled ESP8266, which offers an array of functionality and options for any Designer / Integrator / User.

The gen4-IoD range can be easily programmed using 4D Systems Workshop4 or the Arduino IDE installed with the ESP8266 core.

The feature rich 4D Systems GFX4d library enables speedy development of applications by providing extensive primitive graphics functions, enhanced graphics via Workshop4, SD card and touch routines, integrated into a single library.

The on-board SD card socket enables the use of FAT16 or FAT32 formatted cards for extensive storage capabilities.

The gen4-IoD series of Integrated Display Modules features a 10 pin ZIF socket, designed for a 10 pin FFC cable, for easy and simple connection to an application or mother board, or for connecting to accessory boards for a range of functionality advancements.

The gen4 series of modules has been designed to minimise the impact of display related circuitry, and provide a platform suitable for integration into a product. Application boards can sit flush on the back of the gen4 if required, as the display related electronics sit inside the plastic mounting base, leaving the application board surface clear for User circuitry.

Information about this gen4-IoD display module

  • Powerful Intelligent LCD-TFT display module powered by the Espressif ESP8266 SoC.
  • 2.4″, 320 x 240 Resolution, RGB 65K true to life colours, TFT Screen with integrated 4-wire Resistive Touch Panel.
  • Built in WiFi suitable for ‘Internet of things’ applications.
  • 802.11 b/g/n/e/i support Integrated TCP/IP protocol stack
  • WiFi 2.4 GHz, supporting WPA/WPA2 and WEP/TKIP/AES, along with STA/AP/STA+AP/P2P operation modes
  • 4Mbit (512kb) of Flash memory for User Application Code and Data.
  • 128Kb of SRAM of which 80kb is available for the User.
  • 10 pin FFC connection, for all signals, power, communications and programming.
  • On-board latch type microSD memory card connector for multimedia storage and data logging purposes.
  • DOS compatible file access (FAT16 or FAT32 format).
  • Display full colour images, animations, and icons.
  • 4.0V to 5.5V range operation (single supply).
  • Module dimensions: 78.4 x 44.8 x 7.2mm
  • Weight: ~26 g.
  • 4x mounting tabs with 3.2mm holes for mechanical mounting using M3 screws.
  • RoHS, REACH and CE compliant.

The gen4-IoD-24T includes the following items:

  • gen4-IoD-24T Display Module
  • 4D-UPA Programming Adaptor
  • 10-way FFC Cable

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-gen4-IoD-24T.


Diagonal Display Size INCHES





182 cd/m2

Backlight LEDs





Espressif ESP8266 SoC

Operating Ambient Temperature

-20°C to +70°C

Storage Temperature

-30°C to +80°C


10 way FPC

Display Viewing Area (mm)

48.96 x 36.72

Module Dimensions (mm)

78.40 x 44.80 x 7.20



Country of origin


CCCN / tarif code


ECCN export control code






Package Dimensions L x W x H (mm)

107 x 76 x 36

Product Weight (g)


Weight with Packaging (g)




CE Mark


Supply Voltage

5.0V DC

Supply Current


Frame Rate

8.5 fps



Processor Capability

650K Pixels / second

SD Card Slot

Yes – FAT16 or FAT32 Support. SPI Compatible microSD Cards Only








1 x GPIO


4D Workshop4 IDE, Arduino IDE

Serial Speed

300 to 921600 baud

Serial Interfaces


Viewing Angle

Standard Viewing Angle


Viewing Area: 48.96 x 36.72 mm

Module Width: 78.40 mm

Module Height: 44.80 mm

Module Depth:7.20 mm

Module Weight: 26 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


  • 2.4″, 240×320 pixel resolution Smart TFT LCD Module
  • WiFi enabled with embedded ESP8266 SoC processor
  • Resisitive Touch
  • Suitable for easy to implement WiFi enabled GUI applications


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

Starter Kits and Accessories

  • SK-GEN4-IOD-24T Starter Kit for first-time users

    This Starter Kit includes everything you need to integrate the gen4-IoD-24T into any project, and it is  ideal for first-time users. The SK-GEN4-IOD-24T Starter Kit includes:
    • gen4-IoD-24T Display Module
    • 4D-UPA Programming Adaptor
    • 10-way FFC Cable
    • 4GB Industrial microSD Card


  • GEN4-BEZEL-24B

    • Black Bezel for 2.4" gen4 Series Display modules
    • Allows for easy mounting option to walls and panels


  • 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


  • GEN4-PA

    • 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


  • GEN4-IB

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

    • Breakout Board for gen4 and pixxiLCD modules
    • Used to connect module to a host or breadboard
    • Breaks out all 30 signals from the 30-way FFC, into pads for wire connections or for 0.1" (2.54mm) pitch headers to be soldered on

Related Products

  • 0.9" TFT Module | ESP8266 WiFi enabled | Through-Hole Mounting


  • 3.2" SMART LCD Module | 240x320 pixel resolution | Resistive-Touch | ESP8266 WiFi Enabled


  • 2.8" SMART LCD Module | 240x320 pixel resolution | Resistive-Touch | ESP8266 WiFi Enabled