Datasheet

4D SYSTEMS uLCD-220RD Display Module
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uLCD-220RD Display Module
1. Description
The uLCD-220RD is a unique 1.38” Round LCD
Intelligent Display Module powered by the 4D
Systems’ DIABLO16 Graphics Processor. Designed
for applications such as gauges and instruments or
for special applications such as robotics.
The 1.38” Round LCD on the uLCD-220RD has a
diameter of 220 pixels, however since the display
is round there is only ever 110 pixels from the
centre of the display, in any given direction. The
pixels are in a round configuration instead of the
normal square configuration found on other TFT
LCD Displays.
Driving the display and peripherals is the
DIABLO16 processor, a very capable and powerful
chip which enables stand-alone functionality,
programmed using the 4D Systems Workshop 4
IDE Software. The Workshop IDE enables graphic
solutions to be constructed rapidly and with ease
due to its design being solely for 4D’s graphics
processors.
The DIABLO16 Processor offers considerable
FLASH and RAM upgrades over the PICASO
processor, and also provides mappable functions
such as I2C, SPI, Serial, PWM, Pulse Out, and
Quadrature Input, to various GPIO, and also
provide up to 4 Analog Input channels.
The display module has an array of features
including PWM for Sound, Touch Detection, micro-
SD memory storage, general purpose I/O including
Analog Inputs, multiple TTL Serial, I2C and SPI
channels and multiple millisecond resolution
timers, amongst many more features.
Anything that has been designed in the past to run
on a PICASO Processor can theoretically run on
this DIABLO16 Module with minor changes. Please
ensure you contact the 4D Systems’ support team
if unsure if upgrading from a PICASO product and
wanting to design with or change over to this
uLCD-220RD Module.
The uLCD-220RD features a 30 way 2.54mm pitch
male pin header, where all of the IO available on
the Diablo16 processor have been broken out for
the User. It also features a 10 way 2.54mm pitch
male pin header which is common to a majority of
4D Systems’ display modules, and is used for
programming the module with our Workshop4
IDE, using a 4D Programming Cable or Adaptor.
2. Features
• 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:
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 I
2
C 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 Diam
• RoHS Compliant.
• CE Compliant.