Home Products Smart Display RS485 Smart Display WL0F00043000WGDAASA00

4.3inch RS485 Modbus Smart TFT Display with Projected Capacitive Touch

Model No. WL0F00043000WGDAASA00

►TFT Size: 4.3"
►TFT Resolution: 480×272 dots
►TFT View Direction: 80/80/80/80
►TFT Touch Screen: Capacitive Touch Panel
►Communication Interface: RS485
►Protocol: Modbus
►Brightness(cd/m²): 400


WL0F00043000WGDAASA00 is a 4.3-inch Smart Display_RS485 series TFT, defined as a slave device controlled by a master device via RS485 command to render display content on the display screen and return touch event data with Modbus protocol data. WL0F00043000WGDAASA00 is featured with WINSTAR wide temperature TFT WF43WTWAEDNGA and a 4-layers FR4 PCBA built-in firmware. This 4.3" RS485 series TFT is an easy-to-use product that allows you to develop projects rapidly in a cost-effective way. WINSTAR RS485 Smart Display support single-master (HOST) platforms, such as a computer (with USB2RS485 Dongle), MCU, and Raspberry Pi.

Smart Display products are designed with STMicroelectronics' (ST) controller which supports ST development tools like TouchGFX and STM32CubeIDE. You can also use ST tools to design WINSTAR Smart Display modules besides GUI Builder.

  • TouchGFX: An advanced free-of-charge graphic software framework optimized for STM32 microcontrollers.
  • STM32CubeIDE: An advanced C/C++ development platform with peripheral configuration, code generation, code compilation, and debug features for STM32 microcontrollers and microprocessors.
  • STM32CubeMX: A graphical tool that allows a very easy configuration of STM32 microcontrollers, as well as the generation of the corresponding initialization C code for the Arm® Cortex®-M core or a partial Linux® Device Tree for Arm® Cortex®-A core, through a step-by-step process.
  • STM32CubeProg: An all-in-one multi-OS software tool for programming STM32 products. It provides an easy-to-use and efficient environment for reading, writing and verifying device memory through both the debug interface (JTAG and SWD) and the bootloader interface (UART, USB DFU, I2C, SPI, and CAN).

We’ve also pushed the sample code on Github for your ST platform design reference: ► Link to Github

Below are the features of this 4.3-inch RS485 Smart Display WL0F00043000WGDAASA00:

  • DC 5-24V working voltage.
  • Self-testing after booting function.
  • RS485 communication interface with Modbus protocol.
  • Built in flash memory, store the fonts and pictures.
  • Support capacitive touch panel (CTP).
  • Embedded buzzer controlled by Master Device.
  • Demo set HOST can be used on multiple platforms, such as Computer (with USB to RS-485 Dongle), MCU.
  • Design the UI without writing a line of code by WINSTAR GUI Builder! (Link to GUI Builder User Guide)
  • Designed with STM32F series MCU and Support STMicroelectronics' (ST) software development tools.


WINSTAR developed a Windows app. for Smart Display GUI design. WINSTAR GUI Builder software allows customers to simulate their GUI design in advance by using the drag-and-drop Widget preview function; customers can also create their ideal GUI. WINSTAR GUI Builder software supports Windows systems only; it can fulfill What You See Is What You Get (WYSIWYG). The new version of built-in software is a 3-in-1 APP; we combined three application templates for optional, including industrial, vehicle and medical applications. Please press the preferred application and hold for 3 seconds at the first time power on. Customers can change to another template by using GUI Builder to change the application.

Try before you buy! Contact us to download WINSTAR GUI Builder application.

We also provide demo set with all needed accessories for you to realize your GUI design on displays.
We also provide demo set with all needed accessories for you to realize your GUI design on displays.


4.3inch RS485 Modbus Smart TFT Display with Projected Capacitive Touch - WL0F00043000WGDAASA00


General Specifications

Item Standard Value Unit
Operating voltage 5-24 Vdc
Communication Interface RS485  
Flash Memory 16 MB
SDRAM Frequency 108 MHz
Size 4.3 inch
Dot Matrix 480 × RGB × 272(TFT) dots
Module dimension 119.3(W) × 67.2(H) × 12.45(D) mm
Active area 95.04(W) × 53.856 (H) mm
Pixel pitch 0.198(H) × 0.198(V) mm
Brightness Min: 300; Typ: 400 cd/m2
Backlight Type TFT, Normally Black, Transmissive
Viewing Angle 80/80/80/80
Aspect Ratio 16:9
With /Without TP With Projected Capacitive Touch Panel (PCAP)
Surface Glare

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -30 +80
Storage Temperature TST -30 +80

Electrical Characteristics

Item Symbol Min Typ Max Unit
Supply Voltage VCC 5 12 24 V
Supply Current ICC - 170   mA


Item Description
PCBA SV10004R300WA00N0104

Interface Pin Function

CN1 definition

Pin Symbol Function Remark
1 GND GND Output
2 RS485+ RS485 D+ I/O
3 RS485- RS485 D- I/O
4 +5V VIN Input
5 GND GND Output
6-7 NC -- --
8 +5V VIN Input
9-10 NC -- --
11-12 GND GND Output
13-14 NC -- --
15 GND Power GND Input
16 +5V Power +5V ~ +24V Input

CN2 definition

Pin Symbol Function Remark
1-9 NC -- --
10 GND GND Output
11 JTAG_SWDO Data pin for JTAG interface I/O
12 NRST Reset pin for JTAG interface Input
13 JTAG_SWDI Data pin for JTAG interface I/O
14 GND GND for JTAG interface Output
15 JTAG_SWCLK CLK pin for JTAG interface Input
16 VDD3V 3.3V power for JTAG interface Output
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