VK204-25

20x4 Intelligent character VFD display HMI with Serial RS232, TTL,USB, I2C with a 25 key keypad, 5V,12V, 24V power and Industrial Temperature (-40C to 85C)

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The VK204-25 is a 20x4 intelligent character VFD display (Vacuum Fluorescent Display). Engineered to quickly and easily add a powerful HMI to any application. VFD Displays offer exception performance in extreme temperatures, keeping their quick response times, high (170 degree) viewing angle and long life.

Multiple communication protocols such as Serial RS232, TTL, I2C, and USB communication modes allow the VK204-25 VFD to be connected to a wide variety of host controllers.

Our Intelligent Character VFD displays provides you with a cost-effective industrial HMI user interface solution for that great product/project you are developing. These VFD displays features optional on-board large and medium digits, bar graphs all with the convenience of a 25 key matrix keypad will allow fast development for any application.

20x4 Intelligent character VFD
Available Interfaces: Serial RS232, TTL, I2C, and USB
Two available voltage options: 5V, and Industrial 9-35V (24V)
25 key matrix keypad
6 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 -40C to 85C
High contrast display and wide viewing angles
Optional VFD Filters for high contract available
Fast and easy development
Designed, supported and Made in CANADA
Long life cycle
Customer headers available, please contact us
Semi-custom designs available
Long life production
Backed by Matrix Orbital's decades of research and development

Module
Family/Series	Intelligent Display
Module Width (mm)	98
Module Height (mm)	60
Screen
Display Type	Character VFD
Viewing Area Width (mm)	96
Viewing Area Height (mm)	35
Active Area Width (mm)	70.8
Active Area Height (mm)	20.9
Resolution Width (Pixels)	100
Resolution Height (Pixels)	28
Pixel Pitch Width (mm)	0.5
Pixel Pitch Height (mm)	0.7
Pixel Width (mm)	0.4
Pixel Height (mm)	0.5
Character Columns	20
Character Rows	4
Character Pitch Width (mm)	3.6
Character Pitch Height (mm)	5.4
Character Width (mm)	2.4
Character Height (mm)	4.7
Font	Japanese
Viewing Angle	170
HMI
Touchscreen	None
Keys	25
Haptic Feedback	None
Audio Feedback	None
GPO's	6
Advanced GPO's	None
DOW	Optional, 1
Integrated LED's	None
Electrical
Interface	RS232, TTL, I2C, RS422, USB
Command Protocol	Matrix Orbital
Controller	Atmega164P
Minimum Voltage (Vdc)	5
Typical Voltage (Vdc)	5, 9-15, 9-35
Maximum Voltage (Vdc)	35
Header	Standard
Environmental
Min. Operating Temp. (°C)	-20, -40
Max. Operating Temp. (°C)	70, 85
Min. Storage Temp. (°C)	-40, -50
Max. Storage Temp. (°C)	85

Downloads
	File Name	Revision	Size
	File Name	Revision	Size
Alphanumeric Software	DisplayTunerPro v1.0.0.0 Software	1.0.0.0	802.25KiB	Description Display Tuner Pro (MOCD#) is an update to our popular uProject testing software for Matrix Orbital displays. It adds support for new features and displays, including legacy and graphic units, to our established base of features and scripting. This tool supports all Matrix Orbital Intelligent and Economy Series displays, including the following: GLK Series (GLK12232-25-SM, GLK12232-25, GLK19264-7T-1U, GLK24064-25, GLK24064R-25-1U, GLK240128-25) GLT Series (GLT12232-SM, GLT24064R-1U, GLT24064, GLT240128) GOK Series (GOK12232A-25-SM, GOK12832-25-SM) LCD/OLED/VFD Series (LCD0821, LCD2041, OLED0821, OLED2041, VFD2041) LK Series (LK162-12, LK162A-4T, LK162B-7T, LK202-25, LK204-25, LK204-7T-1U, LK402-25, LK404-25) MOI/MOS/MOU Series (MOS, MOU, XBoard-S, XBoard-U) OK Series (OK162-12, OK202-25, OK204-25) VK Series (VK162-12, VK202-25, VK204-25, VK246-25) And all Legacy Displays
Alphanumeric Software	Boot Edit		524.62KiB	Description Boot Edit is designed for modification of advanced features of the LK/VK/PK USB and MX series. This is a more advanced version of the Boot Logo software. Boot Edit allows the setting of these features: Custom startup screen using custom characters Power on GPO and FAN settings, such as speed, and frequency LCD Contrast, backlight brightness and VFD brightness Compatible Displays: LK/VK/PK202-25 LK/VK/PK202-24-USB LK/VK204-24-USB MOS-AL/AV/AP202 MOS-AL/AV204 All MX series Only the MX and USB series support the Edit GPO Defaults section. This application was written by Ray of LCD Studio. (Ray@lcdstudio.com)
Alphanumeric Software	Display Tuner		407KiB	Description This basic application allows you to test and set LCD Contrast, Brightness, VFD Brightness, set baudrate and send text to the display. Compatible Displays: All LK/VK/PK, MOS, MX and LCD/VFD series.
Alphanumeric Software	Custom Character Tool		451.61KiB	Description This simple program to give you hex values for custom characters. This program allows you to see the hex values per lines for custom characters making implication easier. Simply download the program, uncompress and run. You will require Microsoft .NET Framework Version 1.1, it can be downloaded from here. This application was written by Ray of LCD Studio. (Ray@lcdstudio.com) For technical discussions and questions, please visit our forums
Alphanumeric Software	Boot Logo		40.03KiB	Description Boot Logo is designed for modification of the startup screen for some alphanumeric displays with startup screens. The user has the ability to use the normal text from the display\'s font table, and the 8 custom characters. Compatible Displays: LK/VK/PK162-12 LK/VK/PK202-25 LK/VK/PK202-24-USB LK/VK204-24-USB MOS-AL/AV/AP202 MOS-AL/AV204 All MX series This application was written by Ray of LCD Studio. (Ray@lcdstudio.com)
Alphanumeric Software	uProject		1.42MiB	Description uProject is an advanced testing software for Matrix Orbital displays. It allows testing of nearly all the features and allows test scripting and many other advanced features. uProject (micro Project) is a series of different tools that should allow the testing of nearly all the features of most of our displays. uProject also features scripting abilities to speed up testing or changing of a specific feature, such as backlight brightness or contrast. All LK/VK/PK, MOS, MX and LCD/VFD series.

Documents
	File Name	Revision	Size
	File Name	Revision	Size
VK204-25	PCN 2022-08-09-01		208.71KiB	Description PCB R3.0.1 Release
VK204-25	Autocad drawing for PCB Revision 1.0	1.0	142.74KiB	Description Autocad .dwg style drawing for PCB revision 1.0 of the USB only VK204-25-USB display.
VK204-25	PCN 2006-07-13		146.21KiB	Description VFD2041 PCB 2.0 Release
VK204-25	Manual for PCB Revision 1.0	1.0	1.31MiB	Description Manual for PCB revision 1.0 of the USB only VK204-25-USB display.
VK204-25	PCN 2006-08-24-08		120.14KiB	Description VFD2041 PCB 2.0 Feature Enhancement
VK204-25	Manual for PCB Revision 1.23	1.23	481.9KiB	Description Manual for PCB revision 1.23 of the Standard VK204-25 display.
VK204-25	PCN 2007-02-20-01		106.02KiB	Description G2 Graphics
VK204-25	Autocad drawing for PCB revision 2.0	2.0	94.89KiB	Description Autocad .dwg style drawing for PCB revision 2.0 of the Standard VK204-25 display.
VK204-25	PCN 2007-07-11-01		111.46KiB	Description G2 Alphanumerics / Graphics Upgraded FW
VK204-25	Manual for PCB Revision 2.0	2.0	1.85MiB	Description Manual for PCB revision 2.0 of the Standard VK204-25 display.
VK204-25	PCN 2007-12-11-01		104.16KiB	Description G2 Alphanumerics / Graphics Upgraded FW
VK204-25	3D Drawing for VK204-25-422 Revision 3.0	3.0	11.12MiB	Description Solidworks .step style 3D Drawing for VK204-25-422 PCB Revision 3.0.
VK204-25	PCN 2008-03-06-01		101.87KiB	Description Some G2s Upgraded Firmware
VK204-25	3D Drawing for VK204-25-USB Revision 3.0	3.0	11.27MiB	Description Solidworks .step style 3D Drawing for VK204-25-USB PCB Revision 3.0.
VK204-25	PCN 2010-03-03-03		105.4KiB	Description GLK24064-25 PCB 3.0 Release
VK204-25	3D Drawing for VK204-25 Revision 3.0	3.0	11.5MiB	Description Solidworks .step style 3D Drawing for VK204-25 PCB Revision 3.0.
VK204-25	PCN 2010-08-16-01		120.5KiB	Description New MO VPT module
VK204-25	2D Drawing for VK204-25-422 Revision 3.0	3.0	293.99KiB	Description DWG style Drawing for VK204-25-422 PCB Revision 3.0.
VK204-25	PCN 2011-06-03-01		580.43KiB	Description -V and -V-E power/temperature considerations
VK204-25	2D Drawing for VK204-25-USB Revision 3.0	3.0	296.51KiB	Description DWG style Drawing for VK204-25-USB PCB Revision 3.0.
VK204-25	PCN 2011-10-11-01		95.5KiB	Description Display Modules I2C Update
VK204-25	2D Drawing for VK204-25 Revision 3.0	3.0	301.32KiB	Description DWG style Drawing for VK204-25 PCB Revision 3.0.
VK204-25	PCN 2013-01-04-01.2		209.12KiB	Description LVK204-25 PCB Rev 3.0 Changes
VK204-25	PDF Drawing for VK204-25-422 Revision 3.0	3.0	110.44KiB	Description PDF style Drawing for VK204-25-422 PCB Revision 3.0.
VK204-25	PCN 2016-01-21-02		231.86KiB	Description Firmware v7.3 Release
VK204-25	PDF Drawing for VK204-25-USB Revision 3.0	3.0	110.21KiB	Description PDF style Drawing for VK204-25-USB PCB Revision 3.0.
VK204-25	PDF Drawing for VK204-25 Revision 3.0	3.0	111.97KiB	Description PDF style Drawing for VK204-25 PCB Revision 3.0.
VK204-25	Manual for VK204-25 PCB Revision 3.0	3.0	2.48MiB	Description Manual for PCB revision 3.0 of the VK204-25, VK204-25-422, and VK204-25-USB displays.

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.