Advanced type

►Size: 3.5"
►CPU: CortexM4
►Resolution : 320x240 (4:3); 320x480 (16:9)
►Interface: RS232/RS485
►Viewing Area (mm): 70.1*53.8
►Brightness(cd/m²): 1000; 400



LCD Controller


Refresh Rate


Picture Switching Speed

12 ms/picture (83 pictures/s)

Flash Memory

Standard 128m, Extension 1GB

Memory Amount for picture

According to the capability of the image, Suggest "JPG" format.


RS232/ USB Interface

Pictures downloading

USB2.0 (12Mbps) & U storage Disk downloading

Voltage Range

DC6.0V ~ 40V (typical value: 12V)



Backlight Type



1000 cd/m2(Brightness can be adjustable in 100 levels.)



Backlight life

50,000 hours

Viewing Angle

70°/ 70°/ 50°/ 70° (L/R/U/D)

Working Temperature

-20°C ~ +70°C

Working Humidity

55°C, 85%

Storage Temperature

 -30°C ~ +80°C

Screen Mode




Size (Inch)





65536 colors (16 bit)

Viewing Area


Pixel Spacing

0.1905 mm × 0.0635 mm(H×V)

Overall Dimension


Net Weight

 85 g(N)/ 100 g(T)

TFT Panel

A+ Class Industry Panel

Touch Screen

Industry Level 4 wire resistance
Or without touch screen is optional.



Working Temperature

-20°C ~ +70°C

Air Humidity

 60°C, 90%

Continuous Vibration Testing

10-55Hz, 1.5mm, 10G

Impact Acceleration Testing

6ms, 100G

ESD Testing


Radiation Reliability Testing


STVA035WT-01 mini smart Touch TFT LCD module Description:



We are using high-quality TFT panels from Innolux, with 1000 nits backlight, and embedded with CORTEX M4 CPU and LCD drivers. So it is very powerful, stable and easily developing in different kinds of applications.

STONE provides customers with an Intelligent HMI solution. The intelligent TFT LCD module with a Cortex-M4 32-bit CPU can be controlled by any MCU via simple Hex Instruction through the UART port.

The STVA035WT-01 TFT display module consists of a CPU, TFT drives, flash memory, UART port, power supply, etc. STONE also provides a basic control program and powerful design software (STONE TOOL Box). You can use it to set various functions on the graphical user interface, such as text, figures, curve, image switching, keyboard, progress bar, the slider, dial-up, clock and touch button, data storage, the USB download, video, and audio.

It is very easy for engineers to develop the TFT-LCD color user interface and touch control functions, which can reduce a lot of development time and cost.






STONE small TFT LCD Specification:


•   Cortex M4 CPU
•   UART interface (RS232/RS485/TTL)
•   256-byte register
•   128 kb variable memory
•   128 MB flash memory, expandable to 1 GB
•   GUI design software
•   Customized command set
•   The single-page supports up to 128 display variables
•   Integrated real-time clock RTC
•   Touch buzzer sound function
•  Support software 90 degrees, 180 degrees, 270 degrees screen rotation, adjust the appropriate visual Angle
•   8-channel curve trend chart memory
• Support online download and debugging of USB mini interface, improve the necessary efficiency of research and development, and avoid repeatedly plugging TF CARDS in the debugging process
•   Touch buzzer sound function



STVA035WT-01 TFT LCD dimensional drawing:





STONE LCD display interface details



STONE TOOL Box (GUI Design software):



STONE TOOLBox (software)


1. Create a graphic user interface (GUI). We will provide you a very powerful and simple GUI design software—STONE TOOL Box. You can use it to create your own interface by using any .jpg/.bmp format image. 
2. Assign the different variable memory addresses for the different function block-like data display, text display, or variable icons, to make sure the variable value can be stored and assigned.
3. Connect your display with your controller via the RS232/RS485/TTL interface.
4. Program your controller with any language to send the hex command sets to the display, read/write the variable memory, or register values.



STONE LCD display module Application sample:


For example: display the English and number "VIEW 123"
The UART sends command: A5 5A 0A 82 01 40 56 49 45 57 31 32 33 





A5 5A: Frame head 
0A: command byte length, 82 01 40 56 49 45 57 31 32 33 is 10 bytes (without frame header) 
82: write variable register command 
01 40: Variable address, set in control properties 
56 49 45 57 31 32 33: Data content, ASCII code for "VIEW 123"



Package Including:


1 * STONE HMI STVA035WT-01 3.5" TFT 480x272 TFT Display Touch Screen Intelligent Display Module

2 * Transfer board

2 * 8 pin terminal block

2 * 20mm long cable

1 * U disk

1 * USB cable

1 * 5mm short cable

1 * 20mm DB9 cable




STONE authentication and documentation:


- software

- instruction set

- editorial guide

- CE certification

- ROHS certification

- ISO9001 certification

FC certification





       1.  5-YEAR Warranty Period
               Replace by a brand-new Unconditionally

      2.  customizable service
               a. Customize TFT-LCD Module according to the customer’s requirement.
               b. Develop the customization function.
               c. Optional resolution 

               d. Optional luminance


      Optional UART interface type (RS232/RS485/TTL)

      Optional touch control type (resistive/capacitive/non-touch)



STONE TFT LCD module advantages:

Why people will choose STONE products over other TFT LCD solutions?

1.    Highly customized interface: 

With TOOLS 2019 GUI design software, you can easily create a beautiful and unique user interface with any .jpg/.bmp files. It will make your equipment quite different from other competitors, and highly recognized in the market.

2.    Very easy to develop:  

The STONE intelligent display is already embedded with the CPU, driver, and memory. So you don’t have to design all the processors and drivers for the LCD again. What you need to do is just program your controller and let it send the simple hex command strings to communicate with the display through the UART interface.

3.    Professional pre-sale and after-sale service:  

we are a professional LCD module manufacturer since 2005 and already provide professional products and services for over a thousand customers all over the world. We have a highly-qualified team to support you with the training, testing, and business stuff.