GTT38A

3.8" 480 x 116 Graphic TFT display 1U HMI using Serial RS232, TTL, USB, I2C, RS422 with GUI 25 keypad 5V, 12V, 24V power with 2GB memory and 32MB of RAM

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The GTT38A is an intelligent display that features a full color resistive touchscreen TFT and is designed to fit 1U applications. With the available - industry standard - communication protocols (serial RS232, TTL, I2C, RS422 and USB) and the incorporation of a 25 key (matrix-style) keypad header, communicating, controlling and interacting with the display is easily achieved.

Included features, like the piezo speaker and vibratory motor, provide tactile and audio feedback for a comfortable, confident user interaction. Additionally, the field updatable micro SD card stores font and bitmap files to liberate space and resources for use by the microcontroller, Arduino, or other HMI controller. Suitable for a wide range of applications, and with a resolution of 480 x 116, the GTT38A is a complete display solution that will quickly become the bright fresh face of your machine or user interface.

Pair the GTT series with our free software - GTT Designer - to design screens and user interactions quickly and easily. The software, which is compatible with all GTT displays, is a fully graphical, object-on, drag and drop suite with a library of built-in objects. Including: graphs, charts, buttons and animations. The interface was designed so no technical expertise is required to create a fully interactive user interface in minutes.

Features

16bit Color 3.8" 480 x 116 Graphic TFT display 1U
Available Interfaces: Serial RS232, TTL, I2C, RS422 and USB
Resistive Touch panel
Full color 1U TFT
25 key - matrix style - keypad
2 GB on-board memory for fonts, graphics and animations
32MB of RAM
6 General Purpose Outputs
Two available voltage options: 5Vdc or 9-35Vdc
Programmable to display any language
Field upgradable firmware
Piezo Buzzer to provide audio feedback
Vibratory motor to provide tactile feedback
Hardware flow control
Fast and easy development
Designed, supported and Made in CANADA.
Backed by Matrix Orbital's decades of research and development.
GTT HMI/GUI Design Software

Module
Family/Series	GTT
Module Width (mm)	140
Module Height (mm)	38
Screen
Diagonal Screen Size (in)	3.8
Display Type	TFT - Color
Backlight Type	LED
Viewing Area Width (mm)	96.84
Viewing Area Height (mm)	25.1
Active Area Width (mm)	95.04
Active Area Height (mm)	22.97
Resolution Width (Pixels)	480
Resolution Height (Pixels)	116
Pixel Pitch Width (mm)	0.198
Pixel Pitch Height (mm)	0.198
Font	Multilingual
Viewing Direction	Bottom
Viewing Angle	120
HMI
Touchscreen	Resistive
Keys	25
Haptic Feedback	Vibratory Motor
Audio Feedback	Piezo Buzzer
GPO's	6
Advanced GPO's	None
DOW	None
Integrated LED's	None
Graphic Memory	2GB
Hardness	3H (Res)
Electrical
Interface	RS232, TTL, USB, I2C, RS422
Command Protocol	Matrix Orbital
Controller	LPC1788
Backlight Driver	Integrated
Minimum Voltage (Vdc)	5
Typical Voltage (Vdc)	5, 9-35
Maximum Voltage (Vdc)	35
Header	Standard, Right Angle, Locking, Terminal Block, None
Environmental
Min. Operating Temp. (°C)	-20
Max. Operating Temp. (°C)	70
Min. Storage Temp. (°C)	-30
Max. Storage Temp. (°C)	80

Downloads
	File Name	Revision	Size
	File Name	Revision	Size
GTT Firmware	GTT Rev2.0 Firmware R2.13.0.10563	2.13	474.4KiB	Description Firmware files for the GTT series, including the GTT Client Library. Supported units: GTT29A, GTT35A, GTT38A, GTT38C, GTT43A, GTT50A, GTT52B, GTT70A. Released on December 19, 2018 Notes GTT Firmware Changelog from R2.12.0.10217: New Feature: Added Support for NEW GTT52B module New Feature: Added Create Folder Command New Feature: Added support for >4GB uSD memory cards New Feature: Added Secured Communication, Command 254 251 Flags[U8] bit 0 (wrapping commands with CRC check) New Feature: Added Option to Using Secured Communication, Command 254 251 Flags[U8] bit 1 Bug Fix: Fixed Animation rendering Bug Fix: Clipping command was off by 1 Bug Fix: Stroke pad not rendering Optimization: Enhanced floating point labels in Charts ** please see GTT Developer Manual
GTT Firmware	GTT Rev2.0 Firmware R2.12.0.10217	2.12	476.21KiB	Description Firmware files for the GTT series, including the GTT Client Library. Supported units: GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52B, GTT70A. Notes Changelog from R2.11.0.10067 New Feature: Added Communication Logging feature New Feature: Added Colour Properties for Chart Axes New Feature: Added Tick Frequency and Length for Chart Axes Bug Fix: Fixed alignment and clipping issues for Chart Axes Bug Fix: Fixed possible overflow for large data packets Bug Fix: Fixed printing of floating point numbers Optimization: Decrease font rendering speed
GTT Firmware	GTT Rev2.0 Firmware R2.11.0.10067	2.11	437.37KiB	Description Firmware files for the GTT series, including the GTT Client Library. Supported units: GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52B, GTT70A. Notes Changelog from R2.10.0.9823 New Feature: Added GTT Client Library New Feature: Added Screenshot command New Feature: Added GTT2.5 command to Get/Set Backlight New Feature: Added MAC commands for Ethernet units Bug Fix: Correctly set proper first frame for an animation Bug Fix: Fixed and issue where single GTT25 events were processed twice in the client library Optimization: Improved space usage for Flash memory Optimization: Improved update speed when large numbers of objects are on screen
GTT Firmware	GTT Rev2.0 Firmware R2.10.0.9823	2.10	384.38KiB	Description Firmware files for the GTT series. Supported units: GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52B, GTT70A. Notes Changelog from R2.9.0.9625 New Feature: Added a Visual Bitmap feature for future Designer tool. New Feature: Added a Raw Button for future Designer upgrade. New Feature: Added a GTT2.5 style Animation for future Designer upgrade. Bug Fix: Fixed issue where Scripted Buttons would not execute properly on screen changes Bug Fix: Fixed issue where the Append Label Event was not working Optimization: Added a method to process outstanding redraws faster.
GTT Designer Software	GTT 2.0 Design Software 1.14.0.10441	1.14	37.44MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52B, and GTT70A. Notes Changes from v1.13.0.10242: New Feature: Added Secure Communications Option Tick Box New Feature: Added Status Messages Option Tick Supported by firmware version R2.13.0.10528
GTT Designer Software	GTT 2.0 Design Software 1.13.0.10242	1.13	36.64MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52B, and GTT70A. Version 1.13.0.10242 brings the release of a major new GTT2.5 tool: charts, as well as development features such as logging and screenshots, in addition to minor bug fixes. Notes Changes from v1.12.0.10123 New Feature: Added Screenshot command to Tools New Feature: Added Communication Logging commands to Tools New Feature: Added Tick Frequency and Length for Chart Axes Bug Fix: Correctly display Animation, Graph, and ImageList bitmaps after paste Bug Fix: Correctly set the Font Window size based on screen size Bug Fix: Fixed an issue where multiple objects were assigned the same ID
GTT Designer Software	GTT 2.0 Design Software 1.12.0.10123	1.12	36.64MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52A, and GTT70A. Version 1.12.0.10123 brings new GTT2.5 tools, including Images, ImageLists, and Animations, optimizations for screen loading and switching, and implements a number of bug fixes. Notes Changes from v1.11.0.9989 New Tool: Image (GTT2.5) New Tool: Image List New Tool: Animation (GTT2.5) Bug Fix: Updated the ToggleText object to show the correct text when starting in the down state Optimization: Removed duplicate bitmap generation when global bitmaps are used. Optimization: Removed screen flicker when navigating between screens .
GTT Designer Software	GTT 2.0 Design Software 1.11.0.9989	1.11	36.6MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52A, and GTT70A. Version 1.11.0.9989 brings new tools, including Raw Buttons and Toggles, updates the Actions tab with an option to Clear All Traces, adds more Image Assets, and implements a number of bug fixes. Notes Changes from v1.10.0.9818 New Tool: Raw Button, Raw Button, which allows changed to background colour, as per Forum request from Druid New Tool: Raw Toggle New Action: Clear All Traces Tool Update: Added Style options for Bar tools with labels including: None, Percentage, and Value Tool Update: Added Disabled and Focus images to the BasicToggle25 Tool Bug Fix: Corrected an issue where motor feedback selection activated piezo and vice versa Bug Fix: Added transparent colour check for labels of all bars Bug Fix: Fixed missing bitmap on copy/paste issue for Toggle Text Tool New Feature: Added Image Assets Optimization: Moved default SaveAs folder to one level higher Optimization: Moved send events to host node for buttons to execute before scripts
GTT Designer Software	GTT 2.0 Design Software 1.10.0.9818	1.10	13.87MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52A, and GTT70A. Version 1.10.0.9818 brings new tools, such as Axis Ticks and Two Colour Bargraphs, updates the Actions tab with options such as Set Bargraphs Colour and Set Gauge Test Colour, optimizations found in the updated Settings windows that allow even more loading options, and a number of bug fixes. Notes Changes from v1.9.0.9645 New Tool: Gui Axis Ticks New Tool: Two Colour Bargraph New Action: Set Slider Text Colour New Action: Set Bargraph Colour New Action: Set Gauge Text Colour New Action: Set Gauge Needle Colour GUI Update: Split Settings into Project and Display Settings tabs GUI Update: Added Images option for Button objects GUI Update: Added Text property and methods for Button objects to Report Bug Fix: Fixed an issue where Bar Update Actions were not executed correctly for GTT2.5 objects Bug Fix: Fixed an issue where the frequency of up/down beep responses was the same Bug Fix: Corrected Up/Down Text implementation for Toggle Text Bug Fix: Fixed an issue where Bars with Labels displayed incorrect values when min/max were swapped Bug Fix: Fixed an issue where copying a screen with a hidden images resulted in an error New Feature: Added Global Bitmaps to allow projects to be optimized for faster screen switches New Feature: Added Loader Screen to display progress when booting, especially when Global Bitmaps are used New Feature: Added Developer .c/.h files for future Client Library functionality Optimization: Moved the font cache inititialization before the loader code
GTT Firmware	GTT Rev2.0 Bootloader R1.8.0.10540	1.0	165.65KiB	Description This is a bootloader upgrade only, simply copy the .bin and .raw files to your GTT Upgrade folder and cycle power. Do not delete the existing .bin firmware file. Notes Changelog from R1.7.0.9031: Added support >4GB uSD memory cards Added support for new GTT38C display module
GTT Firmware	GTT Rev2.0 Bootloader R1.7.0.9031	1.0	166.17KiB	Description This is a bootloader upgrade only, simply copy the .bin and .raw files to your GTT Upgrade folder and cycle power. Do not delete the existing .bin firmware file. Notes Changelog from R1.6.0.8428: Added support GTT38A_ETH prototype unit
GTT Firmware	GTT Rev2.0 Firmware R2.14.0.13201.zip		474.8KiB	Description Firmware files for the GTT series, including the GTT Client Library. Supported units: GTT29A, GTT35A, GTT38A, GTT38C, GTT43A, GTT50A, GTT52B, GTT70A. Released on November 24, 2023 Notes GTT Firmware Changelog from R2.13.0.10563: Several bug fixes Minor feature additions Support implementation for new display modules
GTT Designer Software	GTT 2.0 Design Software 1.14.0.12803		37.52MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52B, and GTT70A. Notes Changes from v1.14.0.10441: Bug Fixes Supported by firmware version R2.14.0.13201
GTT Firmware	GTT Rev2.0 Firmware R2.2.0.6069	2.2	384.42KiB
GTT Firmware	GTT Rev2.0 Bootloader R1.3.6632		165.15KiB	Description Note: This is a bootloader upgrade only, simply copy the .bin and .raw files to your GTT Upgrade folder and cycle power. Do not delete the existing .bin firmware file. Changelog Changelog from R1.2.6076 Added alternate Keypad Mass Storage jumper option for GTT70A
GTT Firmware	GTT Rev2.0 Bootloader R1.4.0.6931		165.16KiB	Description Note: This is a bootloader upgrade only, simply copy the .bin and .raw files to your GTT Upgrade folder and cycle power. Do not delete the existing .bin firmware file. Changelog Changelog from R1.3.6632 Added robustness to USB file transfers
GTT Firmware	GTT Rev2.0 Firmware R2.3.0.6964	2.3	1.12MiB
GTT Designer Software	GTT 2.0 Design Software 1.1.0.6970	1.1	2.86MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your revision 2.0 GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT35A, GTT38A, GTT43A, GTT50A, and GTT70A. Version 1.1.0.6970 includes fixes for labels and traces.
GTT Designer Software	GTT 2.0 Design Software 1.2.0.7732	1.2	6.35MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your revision 2.0 GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT35A, GTT38A, GTT43A, GTT50A, and GTT70A. Version 1.2.0.7732 includes major updates to user interface, features, and tools.
GTT Designer Software	GTT 2.0 Start Screens	02.0	731.12KiB	Description Factory default start screens for the GTT35A, GTT38A, GTT43A, GTT50A, GTT57A, and GTT70A.
GTT Firmware	GTT Rev2.0 Firmware R2.4.0.7300	2.4	400.87KiB
GTT Designer Software	GTT 2.0 Design Software 1.3.0.7797	1.3	6.4MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your revision 2.0 GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT35A, GTT38A, GTT43A, GTT50A, and GTT70A. Version 1.3.0.7797 includes minor updates to user interface and features, as well as new tools, such as Triangle Buttons and Sliders.
GTT Firmware	GTT Rev2.0 Bootloader R1.5.0.7702		165.19KiB	Description Note: This is a bootloader upgrade only, simply copy the .bin and .raw files to your GTT Upgrade folder and cycle power. Do not delete the existing .bin firmware file. Changelog Changelog from R1.4.0.6931 Added support for new capacitive touch units Updated startup implementation to remove a momentary white screen
GTT Designer Software	GTT 2.0 Design Software 1.4.0.7878	1.4	8.41MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your revision 2.0 GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT35A, GTT38A, GTT43A, GTT50A, and GTT70A. Version 1.4.0.7878 includes minor updates to the user interface, the addition of new Image Assets, and new tools such as Animations, Image Sliders, and Image Nine-Slices.
GTT Designer Software	GTT 2.0 Design Software 1.5.0.8082	1.5	8.53MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your revision 2.0 GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, and GTT70A. Version 1.5.0.8080 includes minor updates to the deployment window, style updates, the addition of an Events tab for visual script creation, and full support for new commands released in GTT Firmware Version 2.6.
GTT Firmware	GTT Rev2.0 Firmware R2.5.0.7838	2.5	384.38KiB
GTT Designer Software	GTT 2.0 Design Software 1.6.0.8249	1.6	8.71MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your revision 2.0 GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52A, and GTT70A. Version 1.6.0.8429 includes major feature improvements including new tools, such as gauges and bars, updates to exisiting tools, GUI improvements, the addition of a Links tab for connecting objects, and full support for new commands released in GTT Firmware Version 2.7.
GTT Designer Software	GTT 2.0 Design Software 1.7.0.9105	1.7	8.73MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your revision 2.0 GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52A, and GTT70A. Version 1.7.0.9105 includes enhanced reporting for advanced tools, property additions to the gauge tick parameters, and GUI improvements.
GTT Firmware	GTT Rev2.0 Firmware R2.6.0.8194	2.6	1.1MiB
GTT Designer Software	GTT 2.0 Design Software 1.8.0.9367	1.8	13.82MiB	Description Develop and maintain gorgeous user interfaces and menu structures for your GTT using this immersive Windows environment tool. Design Software for the GTT Rev2.0 line, supports the GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52A, and GTT70A. Version 1.8.0.9367 brings full support for the integrated keypad of the GTT29A, exciting tool updates that offer enhanced customization, new event actions that improve object interaction, and minor GUI improvements to the Designer, including additional gauge designs. Notes Changes from v1.7.0.9105 New Display: Added GTT52B support New Tool: Added Square Gauge New Tool: Added Image Gauge Tool Update: Upgraded implementation of all Button elements Tool Update: Upgraded Gauge Label position to allow dynamic placement Tool Update: Implemented real-time Designer response to Gauge value Tool Update: Implemented Label and Tick Colours for Gauges New Event: Added Set Button State and Set Button Focus actions New Event: Added Set Button Text Colour action New Event: Added Increment/Decrement Focus Action New Feature: Added Disabled parameter to Buttons New Feature: Added Focus (Selected) parameter to Buttons New Feature: Added a Key Scan Code to Buttons to allow activation from Keypad GUI Update: Improved visual styles for some Buttons GUI Update: Added additional Gauge styles to Assets GUI Update: Separated Legacy tools Bug Fix: Minor updates to fix gauge needle length in the Designer view Optimization: Disabled responses during screen load to reduce chatter
GTT Firmware	GTT Rev2.0 Firmware R2.7.0.8428	2.7	1.19MiB
GTT Firmware	GTT Rev2.0 Bootloader R1.6.0.8428		166.08KiB	Description Note: This is a bootloader upgrade only, simply copy the .bin and .raw files to your GTT Upgrade folder and cycle power. Do not delete the existing .bin firmware file.
GTT Firmware	GTT Rev2.0 Firmware R2.8.0.9398	2.8	384.38KiB	Description Firmware files for the GTT series. Supported units: GTT29A, GTT35A, GTT38A, GTT43A, GTT50A, GTT52B, GTT70A. Notes Changelog from R2.7.0.8424 Object Update: Updated all implementation of Buttons Bug Fix: Fixed issue where Sliders would not respond Bug Fix: Fixed issue where Label colours were not updated correctly Optimization: Cleanup nineslice and animations at shutdown Optimization: Fixed memory leaks causing reboot New Feature: Added Disabled state for Buttons New Feature: Added Focus (Selected) state for Buttons New Display: Added support for GTT52B New Feature: Added global increment/decrement and set Focus New Feature: Added EventGraphs to allow more Button/Keypad functionality Bug Fix: Corrected response from Font Caching command
GTT Support Software	GTT 1.0 Support Software 1.0.0.44	01.0	5.35MiB	Description Support Software for the Legacy GTT Rev1.0 line, supports the GTT480272A. Version 1.0.0.44 includes a small fix to add flow control back into the auto detect process.
GTT Support Software	GTT 2.0 Support Software 2.1.0.0	02.1	231.11KiB	Description Support Software for the GTT Rev2.0 line, supports the GTT35A, GTT38A, GTT43A, GTT50A, and GTT70A. Version 2.1.0.0 adds support for byte and signed word array parameters.
GTT Support Software	GTT 2.0 Support Software 2.2.0.0	02.2	306.13KiB	Description Support Software for the GTT Rev2.0 line, supports the GTT35A, GTT38A, GTT43A, GTT50A, and GTT70A. Version 2.2.0.0 adds support for firmware version 2.6 commands and fixes an issue with the Print UTF-8 command.

Documents
	File Name	Revision	Size
	File Name	Revision	Size
GTT Developer Resources	GTT Protocol Manual	2.7.1	2.05MiB	Description GTT Protocol Manual for all GTT series displays.
GTT38A	Hardware Manual for GTT38A PCB Revision 2.0	2.0	1.7MiB	Description Hardware Manual for GTT38A PCB Revision 2.0
GTT Developer Resources	GTT Developer Manual	1.0	1.35MiB	Description Revision 1.0 of the GTT Developer Manual for all displays in the GTT series.
GTT38A	2D Drawing for (e)GTT38A-TPR		249.24KiB	Description PDF style Drawing for (e)GTT38A-TPR PCB Revision 2.2.1
GTT38A	3D Model for (e)GTT38A		6.27MiB	Description Solidworks .step style 3D Model for (e)GTT38A TPN: non touch, TPR: resistive touch, TPC: capacitive touch
GTT38A	PCN 2016-06-07-01		227.42KiB	Description GTT38A PCB Rev 2.2.1 Release

Application Notes
	File Name	Revision	Size
	File Name	Revision	Size
Application Notes	eGTT50-TPR Drawing (Rev 1.0).pdf		327.29KiB	Description TPN: non touch, TPR: resistive touch, TPC: capacitive touch
Application Notes	Arduino EVE UNO Example Code		-1B	Description Written for an EVE2 or EVE3 or EVE4 running on an Arduino UNO.
Application Notes	ESP32 EVE Example Code		-1B	Description Example code for the EVE on a ESP with the WEMOS D1 mini. Most models of the ESP32/ESP8266 should work, but are untested.