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LCD TFT Slim Module, Capacitive Touchscreen, 7", 4DGL/Serial US$199.00

LCD TFT Slim Module, Capacitive Touchscreen, 7\", 4DGL/Serial

The gen4-µLCD-70DCT-CLB is slim intelligent display module packed with plenty of features, ready to be the GUI or interface controller for your target application. An extensive range of hardware and software peripherals are integrated into the design so you have freedom to adapt the module to suit your application.

The most significant difference between the gen4 model and the previous µLCD-70DCT is the super-slim and flat-backed design. The entire module is only 8.9mm thick, and the PCB sits recessed in the module's housing, allowing for flush mounting to your application PCB, to the wall, etc. (The display's bezel has adhesive tape on the back for this purpose.) To achieve the slim design, GPIO and programming interfaces have been moved to a 30-pin FPC connector instead of having pins sticking out the back. An adapter board is included to break out the programming pins. Another difference in the gen4 module, for the sake of keeping it slim, is that it does not have an on-board speaker. PWM Audio is made available through a pin on the FPC connector.

Note: The capacitive-touchscreen versions of the gen4 have a bonded bezel as shown. The bezel is not removeable. It has adhesive tape on the back to make it easy to secure the display to an enclosure or mount on a wall, etc.

The module consists of a 7-inch (800×480) LCD with capacitive touch screen, a latch-type microSD card connector, Flash memory for application code/data, SRAM for your own use, and the 30-pin FPC providing access to power, communications, and GPIO including I2C, SPI, and UART serial comms.

Driving the display and peripherals is the 4D DIABLO16 processor, a very capable and powerful chip that enables stand-alone functionality programmed in 4DGL using the free 4D Systems Workshop4 IDE Software. The Workshop4 IDE enables graphic solutions to be constructed rapidly and with ease.

The DIABLO16 Processor offers considerable Flash and RAM, and also provides mappable functions such as I2C, SPI, Serial, PWM, Pulse Out, and Quadrature Input, in addition to various GPIO and up to four Analog Input channels.

4DGL is a graphics-oriented language allowing you to write applications in high-level code with syntax similar to popular languages such as BASIC, C and Pascal. The 4DGL-Workshop4 IDE (editor, compiler and downloader) also features the ViSi-Genie, a drag-and-drop graphical interface that will create 4DGL code for you — all you need to do is place pre-made objects onto a simulated image of the display, size and set parameters to your liking, then a single click will generate the 4DGL code to make that object functional.

Using the Workshop IDE, the module also can be loaded with a Serial Application that transforms it into a Serial Slave to virtually any serial host. The module comes configured in this Serial mode by default.

The DIABLO16 processor on the display module also can be re-programmed with different ‘Personality Module Micro-Code’ (PmmC) files for updates and future proofing. The processes of converting to a serial slave, updating the PmmC firmware, or downloading your 4DGL program code all require connection of a USB converter that uses the DTR signal to pulse the Reset line on the processor. Two converters that can plug directly into this module's breakout adapter are available from the "Optional Recommended Products" list below. An alternative also listed there is the Programming Adapter and Breakout Board that requires only a micro-USB cable and has the advantage of also breaking out the display's GPIO pins.

Intelligent Slim TFT LCD Touchscreen Module Features

  • Low-cost LCD-TFT display graphics user interface solution
  • 800 × 480 resolution, 65K colors, TFT screen
  • Capacitive touch panel
  • Easy 5-pin interface to any TTL serial host device: VCC, TX, RX, GND, RESET (via included gen4-IB breakout board)
  • Six banks of 32750-byte Flash memory for user application code and data
  • 32Kb of user SRAM
  • 16 General-Purpose I/O pins for user interfaces, including four configurable Analog Inputs
  • 30-pin FPC connection for all signals, power, communications, GPIO and programming (breakout board for programming pins is included) — see Expansion Header section below
  • On-board latch-type microSD memory card connector for multimedia storage and data logging purposes (SPI-compatible microSD card required)
  • DOS-compatible file access (FAT16) as well as low-level access to card memory
  • Dedicated raw PWM audio pin driven by WAV files from microSD card
  • Display full-color images, animations, icons and video clips
  • Supports all available Windows fonts and characters (imported as external fonts)
  • 4.0V to 5.5V range operation (single supply) *
  • Module Dimensions: 190.1 × 121.9 × 8.9 mm
  • Display Viewing Area: 154.08 × 85.92 mm
  • Weight: about 236 grams
  • RoHS, REACH and CE compliant
* The display must be powered by 4V to 5.5V via the expansion header (minimum 5V for full backlight brightness). For example, you can connect the 4D Programming Cable to the included programming adapter breakout board to power the module from USB. Alternatively, use the Programming Adapter and GPIO Breakout Board and a micro-USB cable. A minimum of 500mA current is required for stable function.

Expansion Header

GPIOs are available via the 30-pin FPC interface. An optional breakout board is available for easy access to the pins.

The GPIOs are configurable for various 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)
Note: The included programming breakout board only provides access power and programming pins. For access to the GPIO pins, purchase the Programming Adapter and Breakout Board shown in the "Optional Recommended Products" list below. You'll also need a micro-USB cable to use that board for programming your display.

Four different development methods

The 4D Systems Workshop 4 IDE supports multiple development environments, to cater for different user requirements and skill level.
  • The Designer environment enables you to write 4DGL code in its natural form to program the display module.
  • The ViSi visual programming experience enables drag-and-drop placement of objects to assist with 4DGL code generation and allows you to visualize how the display will look.
  • The ViSi-Genie advanced environment doesn't require any 4DGL coding at all; it is done automatically for you. Simply lay out the display with the objects you want (similar to ViSi), set the events to drive them and the code is written for you automatically. Arduino and Raspberry Pi libraries are available for use with ViSi-Genie.
  • The Serial environment is provided to transform the display module into a slave serial display module, allowing you to control the display from any host microcontroller or device with a serial port. Serial libraries are available for C, Pascal, PicAxe, and Arduino.
By default, the module will come ready for Serial usage. You can change environments or customize the serial firmware using one of the optional USB-to-Serial adapters and the Workshop 4 IDE software.

Intelligent Slim TFT LCD Touchscreen Module Resources

The display module ships with a breakout board (see above) to easy access to the programming pins, as well as the 150mm FPC cable to connect to it or to your own expansion hardware.

Can be used with Arduino and Raspberry Pi

See the optional recommended products list below for adapters that will allow you to use this display with Arduino and Raspberry Pi systems (the adapters would connect to the module's programming adapter board). Programming libraries for both environments are included in the 4D Workshop4 IDE software.

Optional Recommended Products for this Item
USB to Serial UART Bridge Converter, 5-pin Female and 10-pin DIP+ US$28.00
USB to Serial TTL Cable, 3.3V, 5-pin Female Header, 1.8m+ US$22.00
Programming Adapter and Breakout Board for gen4 Display Modules+ US$12.00
USB 2.0 Cable, 6ft. A-Male / Micro-USB (5-pin) B-Male+ US$6.00
microSDHC 4GB Flash Memory Card with Full-Size Adapter, Class 4+ US$6.50
Arduino Adapter Shield II for 4D Systems LCD/OLED Displays+ US$11.02
Raspberry Pi Interface Adapter for 4D Systems LCD/OLED Displays+ US$8.10

This product was added to our catalog on Thursday 09 June, 2016.


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