1.38″ DIABLO16 Round Display Module Pack for the Raspberry Pi A, B and B+

This 4D Systems Display Module Pack for the Arduino (and variants) is made up of a uLCD-220RD 1.38″ Round TFT LCD Display Module and a 4D Serial Pi Adaptor and 5 way interface cable, for quick and easy connection to a Raspberry Pi.

This Display Module Pack enables an Arduino user to quickly connect the 4D Serial Pi Adaptor to their Raspberry Pi, 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-220RD 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.

The uLCD-220RD-PI has a comprehensive ViSi-Genie library written to communicate with the Raspberry Pi, allowing the Visi-Genie events to be easily understood by the Raspberry Pi and users code.

Utilises the Raspberry Pi’s UART Serial Port.

For a detailed listing of the capabilities of the display module in this Raspberry Pi Pack, please refer to the datasheet for the display itself, available from the Product Page of the uLCD-220RD.


Information about this Display Module

  • Powerful 1.38″ Intelligent LCD-TFT display module powered by DIABLO16
  • 220 x 220 Resolution (Round), RGB 65K true to life colours with LED Backlight.
  • 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
  • DOS compatible file access (FAT16 format) as well as low level access to card memory
  • Dedicated filtered PWM Audio pin driven by WAV files from micro-SD card, and external amplifier enable pin allows easy connection to an external amplifier for audio 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: 42.4 x 46.9 x 14.1mm
  • Weight ~15 g
  • Display Viewing Area: Round 35.1mm Diameter
  • RoHS Compliant
  • CE Compliant

The uLCD-220RD-PI includes the following items:

  • uLCD-220RD Display Module
  • 4D Serial Pi Adaptor Shield
  • 5 way ribbon cable
  • 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-220RD-PI .