122x32 Graphic LCD Display HMI using Serial RS232, TTL, USB, I2C with 25 keypad 5V, 12V, 24V power

The GLK12232-25 is a 122x32 Intelligent Graphic LCD display engineered to quickly and easily add an elegant graphic HMI to any application. Multiple communication protocols such as Serial RS232, TTL, I2C, and USB communication models allow the GLK12232-25 Graphic LCD to be connected to a wide variety of host controllers.

Our Graphic LCD provides you with a cost-effective industrial HMI user interface solution for that great product/project you are developing. On board memory for Fonts and Bitmaps! This graphic LCD displays graphics and text in any font, style, justification and language, all with the convenience of a 25-key keypad matrix will allow fast development for any application.

  • 122x32 Graphic LCD Display HMI
  • 20x4 LCD formfactor replacement with a 93mm x 55mm mounting holes
  • Available Interfaces: Serial RS232, TTL, I2C, and USB
  • 25 key keypad matrix
  • 256KB of customizable fonts and bitmaps to enhance the graphical user experience
  • Programmable to display any language
  • 2 General Purpose Outputs
  • Software controlled contrast and brightness with configurable time-out setting up to 90 minutes
  • Built in Horizontal or Vertical bar graphs
  • Extended temperature available for extreme environments of -20C to 70C
  • Software flow control
  • Fast and easy development
  • Designed and supported in CANADA
  • Long life cycle
  • Backed by Matrix Orbital's decades of research and development.


Please note: (Old part number for revision 2.0, was GLK12232-25-WBL. This is the new revision 3.0 part number) Please review the PCN

Family/SeriesIntelligent Display
Module Width (mm)98
Module Height (mm)60
Display TypeGraphic LCD
Backlight TypeLED
Viewing Area Width (mm)76
Viewing Area Height (mm)25.2
Active Area Width (mm)69.5
Active Area Height (mm)20.76
Resolution Width (Pixels)122
Resolution Height (Pixels)32
Pixel Pitch Width (mm)0.57
Pixel Pitch Height (mm)0.65
Pixel Width (mm)0.53
Pixel Height (mm)0.61
Viewing DirectionTop
Viewing Angle60
Haptic FeedbackNone
Audio FeedbackNone
Advanced GPO'sNone
Integrated LED'sNone
Graphic Memory16kB
InterfaceRS232, TTL, I2C, USB
Command ProtocolMatrix Orbital
Negative VoltageIntegrated
Backlight DriverIntegrated
Minimum Voltage (Vdc)5
Typical Voltage (Vdc)5
Maximum Voltage (Vdc)5
Min. Operating Temp. (°C)0, -20
Max. Operating Temp. (°C)50, 60
Min. Storage Temp. (°C)-30, -10
Max. Storage Temp. (°C)60, 80


 File NameRevisionSize 
 File NameRevisionSize 
GLK12232-25 Display  PDF Drawing for GLK12232-25 Revision


PDF style Drawing for GLK12232-25 PCB Revision 3.0.

GLK12232-25 Display  Manual for GLK12232-25 PCB Rev3.03.01.82MiB


Manual for PCB revision 3.0

GLK12232-25 Display  3D Drawing for GLK12235-25 Revision


Solidworks .step style 3D Drawing for GLK12232-25 PCB Revision 3.0.

GLK12232-25 Display  2D Drawing for GLK12232-25 Revision


DWG style Drawing for GLK12232-25 PCB Revision 3.0.

GLK12232-25 Display  Manual for PCB revision 2.02.0187.86KiB


Manual for PCB revision 2.0

GLK12232-25 Display  Autocad drawing for PCB revision


Autocad drawing for PCB revision 2.0

GLK12232-25-FGW  PCN 2011-10-11-0195.5KiB


Display Modules I2C Update

GLK12232-25-FGW  PCN 2009-03-25-01103.33KiB


Firmware Update for C228

GLK12232-25-FGW  PCN 2008-11-26-01100.16KiB


Font Spacing Change

GLK12232-25-FGW  PCN 2008-02-11-02100.36KiB


GLK12232-25-FGW Firmware Upgrade

GLK12232-25-FGW  PCN 2007-10-16-01135.19KiB


GLK12232-25-WBL PB Rev 3.0 Release


 File NameRevisionSize 
 File NameRevisionSize 
Graphic Software  MOGD# Software1.34MiB


This updated program is the new tool kit for all our graphic displays. It lets you upload fonts and bitmaps, set fonts and font metrics. As well, allows you test all the different features of the display. In addition this program allows you to create new fonts from existing fonts in your windows library. As well as convert graphic files, to a format that you can upload to the displays. This version supports all revisions of most graphic displays, including the following:

GLK12232A-25-SM, GLT12232A, GLK12232-25, GLK19264A-7T-1U, GLK24064R-25-1U, GLT24064R-1U, GLK24064-25, GLT24064, GLK240128-25, and GLT240128

Windows Installation

When installing on Windows we recommend installing to a folder other than \"Program Files\". Doing so will avoid any Administrative Permission errors.
*For example installing MOGD# to the desktop will avoid any of these errors.

Update: 1.1.8 4-Nov-2015-

  • Added support for one byte file IDs
  • Improved font optimization

Update: 1.1.7 26-Jan-2015-

  • Added monospacing and optimization for fonts

Update: 1.1.6 30-Jun-2014-

  • Added animation support
  • Added support for firmware revision 8.5 commands

Update: 1.1.5 31-Jan-2013

  • Extended language support for fonts
  • Code page can now be specified when generating a font

Update: 1.1.0 08-Mar-2011

  • GLK24064-25/GLT24064 PCB Rev4.0 support
  • GLK240128-25/GLT240128 PCB Rev4.0 support
  • Firmware revision is detected automatically

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  • PCB Rev: 3
  • Model: GLK12232-25
  • Availability: In Stock (Build to Order)
  • $79.95USD
  • 25 or more $78.00USD
  • 50 or more $76.05USD
  • 100 or more $72.15USD
  • 200 or more $70.40USD
  • 500+ : Contact us

Tags: GLK12232-25