Search
Filters
Close

WWSSDEMO39F-DA-13#

Eval Kit for TFT 3.9" 480x128, RS485 ModBus interface & GPIO, High Brightness 800cd/m², Wide View Angle (IPS), Super extended temperature, Capacitive touch panel (GG)

DESCRIPTION

WL0F00039000FGDAASA00-FC is a 3.9" RS485 Smart Display featuring a projected capacitive touch panel (PCAP). It incorporates WINSTAR’s high brightness, wide-temperature TFT LCD (model no.: WF39-­480128FD#0SPW3­-FC) and a 4-layer FR4 PCBA with preloaded firmware. Designed for industrial applications, this module supports RS485 communication using the Modbus protocol, ensuring stable and noise-resistant long-distance data transmission. Its compact design, wide input voltage range, and ready-to-use architecture streamline system integration and accelerate product development for engineering teams. Compatible with single-master (HOST) platforms such as PC (USB-to-RS485), MCU, and Raspberry Pi.

Key Features:

  • Wide input voltage range: 5V to 48V (typ. 5V).
  • Power-on self-diagnostic function.
  • RS485 interface with Modbus protocol. Supports multi-drop communication.
  • Built-in 16MB flash memory for font and object data storage.
  • Capacitive touch panel (PCAP) for responsive user interaction.
  • Host-controlled embedded buzzer.
  • The HOST can be used on multiple platforms, including PC (USB-to-RS485), MCU, and Raspberry Pi (with PiCAN2).
  • GPIO pin availability for system-level control.
  • Develop intuitive UIs without coding using WINSTAR GUI Builder. (►Link to GUI Builder Introduction)
  • Powered by STM32F series MCU; compatible with STMicroelectronics development tools.

 

DRAWING

SPECIFICATIONS

General Specifications

ItemStandard ValueUnit
Operating voltage 5 ~ 48 Vdc
Communication Interface RS485 N/A
MCU STM32F750 N/A
Flash Memory 16 MB
LCD display size 3.9 inch
Dot Matrix 480 x 128 x RGB (TFT) dot
Module dimension 157.0(W) x 42.0(H) x 16 mm
Active area 95.04 x 25.34 mm
Pixel pitch 0.198 x 0.198 mm
Brightness Min: 700; Typ: 800 cd/m2
LCD type TFT, Normally Black, Transmissive
View Direction 85/85/85/85
Aspect Ratio Bar Type
Touch Panel Projected Capacitive Touch Screen (PCAP)
Surface Glare

 

Absolute Maximum Ratings

ItemSymbolMinTypMaxUnit
Operating Temperature TOP -30 +80
Storage Temperature TST -40 +90

 

Electrical Characteristics

ItemSymbolMinTypMaxUnit
Supply Voltage VIN 5 5 48 V
Supply Current ICC 420 460 50 mA

 

BOM

ItemDescription
LCM WF39-­480128FD#0SPW3­-FC
PCBA SV10003R900FA00N0101

 

Interface Pin Function

CON1 definition:

PinSymbolFunctionRemark
1 VIN Power supply 5V to 48V input Input
2 GND Power supply GND input GND
3 GND Power supply GND input GND
4 Reserve Differential signal D- I/O
5 Reserve - -
6 Reserve  Differential signal D+ I/O
7 Reserve - -
8 VBUS 5V output for UART interface Output
9 GND Power supply GND input GND
10 Reserve UART1_RX I/O
11 RS485_A RS485 DATA+ I/O
12 Reserve UART1_TX I/O
13 RS485_B RS485 DATA- I/O
14 GND Power supply GND input GND
15 VIN Power supply 5V to 48V input Input
16 GND Power supply GND input GND
 

CON2 definition:

PinSymbolFunctionRemark
1 IO_0 ADC,DAC,Timer,Event,I/O TTL signal voltage is 3.3V
2 +3V3 3.3V power for JTAG interface Output
3 IO_1 ADC,Timer,Event,I/O TTL signal voltage is 3.3V
4 SWCLK CLK pin for JTAG interface Input
5 IO_2 ADC,Timer,Event,I/O TTL signal voltage is 3.3V
6 GND GND Output
7 IO_3 RST,Timer,Event,I/O TTL signal voltage is 3.3V
8 SWDIO Data pin for JTAG interface I/O
9 IO_4 RST,Timer,Event,I/O TTL signal voltage is 3.3V
10 NRST Reset pin for JTAG interface Input
11 IO_5 ADC,Timer,Event,I/O TTL signal voltage is 3.3V
12 GND GND Output
13 IO_6 RST,Timer,Event,I/O TTL signal voltage is 3.3V
14 WKUP WKup,ADC,Timer,Event,I/O TTL signal voltage is 3.3V
15 IO_7 RST,ADC,Event,I/O TTL signal voltage is 3.3V
16 BOOT0 Lo: Internal flash boot (Default)
Hi: External flash boot
TTL signal voltage is 3.3V

 

Display Usage

Functional description

Smart Display can be used to display the coordinate, status and data information provided by the connected HOST device. Customers can configure the position coordinates they want to display in normal operation mode.

The Display is designed to be easily connected to a controller network, and to use the register type of Holding Register.

Splash Screen

The default splash image is shown below.

This product is produced as a generic product. If you require a custom splash image for your application, contact us to discuss.


Default Selection

Press the preferred application and hold for 3 seconds for the first time power on.
 

Winstar's Smart Display Default Selection


Acquisition of Displayed Data

Smart Display uses the Modbus protocol to get and send the data.

On Config mode, customers can set the coordinates or type of objects; On Display mode, customers can send and get data of objects.

Configuring the Display

Winstar Smart Display RS-485 series offers an out-of-the-box Modbus development experience that will lower customers' development costs and speed time-to-market expectations.

The Smart Display can use wide-temperature are designed to support control applications in harsh operating conditions, which designed to be connected to a variety of different situation combinations, such as automotive, marine, power generation and oil-and-gas.

The Smart Display comes with standard UI objects to get customers project off the ground quickly. If customers need custom UI objects support, our engineers are here to help. Send over your contents in PNG/JPG format, we will send over a new set of UI objects within 3~5 working days.

The Smart Display is defined as a slave device, which is controlled by master device via RS485 bus command to render display content on the display screen and return touch event data with protocol objects.

Example Screen Layout (Industry application)

The screen layout described in this section is intended to demonstrate the settings of screen items that can be used in an industry application situation.

Example Screen Layout (Vehicle automotive)

The screen layout described in this section is intended to demonstrate the settings of screen items that can be used in a vehicle automotive situation.


Example Screen Layout (Medical application)

The screen layout described in this section is intended to demonstrate the settings of screen items that can be used in a Medical application situation.

 

EVALUATION KIT 

Evaluation Kit P/N WWSSDEMO39F-DA-13# available at the links:

ITA: https://www.first-components.com/it/wwssdemo39f-da-13

ENG: https://www.first-components.com/en/wwssdemo39f-da-13

SKU: WWSSDEMO39F-DA-13#
Brand: Winstar
Available: Yes
Accessory Kit
€123.00 excl tax

DESCRIPTION

WL0F00039000FGDAASA00-FC is a 3.9" RS485 Smart Display featuring a projected capacitive touch panel (PCAP). It incorporates WINSTAR’s high brightness, wide-temperature TFT LCD (model no.: WF39-­480128FD#0SPW3­-FC) and a 4-layer FR4 PCBA with preloaded firmware. Designed for industrial applications, this module supports RS485 communication using the Modbus protocol, ensuring stable and noise-resistant long-distance data transmission. Its compact design, wide input voltage range, and ready-to-use architecture streamline system integration and accelerate product development for engineering teams. Compatible with single-master (HOST) platforms such as PC (USB-to-RS485), MCU, and Raspberry Pi.

Key Features:

  • Wide input voltage range: 5V to 48V (typ. 5V).
  • Power-on self-diagnostic function.
  • RS485 interface with Modbus protocol. Supports multi-drop communication.
  • Built-in 16MB flash memory for font and object data storage.
  • Capacitive touch panel (PCAP) for responsive user interaction.
  • Host-controlled embedded buzzer.
  • The HOST can be used on multiple platforms, including PC (USB-to-RS485), MCU, and Raspberry Pi (with PiCAN2).
  • GPIO pin availability for system-level control.
  • Develop intuitive UIs without coding using WINSTAR GUI Builder. (►Link to GUI Builder Introduction)
  • Powered by STM32F series MCU; compatible with STMicroelectronics development tools.

 

DRAWING

SPECIFICATIONS

General Specifications

ItemStandard ValueUnit
Operating voltage 5 ~ 48 Vdc
Communication Interface RS485 N/A
MCU STM32F750 N/A
Flash Memory 16 MB
LCD display size 3.9 inch
Dot Matrix 480 x 128 x RGB (TFT) dot
Module dimension 157.0(W) x 42.0(H) x 16 mm
Active area 95.04 x 25.34 mm
Pixel pitch 0.198 x 0.198 mm
Brightness Min: 700; Typ: 800 cd/m2
LCD type TFT, Normally Black, Transmissive
View Direction 85/85/85/85
Aspect Ratio Bar Type
Touch Panel Projected Capacitive Touch Screen (PCAP)
Surface Glare

 

Absolute Maximum Ratings

ItemSymbolMinTypMaxUnit
Operating Temperature TOP -30 +80
Storage Temperature TST -40 +90

 

Electrical Characteristics

ItemSymbolMinTypMaxUnit
Supply Voltage VIN 5 5 48 V
Supply Current ICC 420 460 50 mA

 

BOM

ItemDescription
LCM WF39-­480128FD#0SPW3­-FC
PCBA SV10003R900FA00N0101

 

Interface Pin Function

CON1 definition:

PinSymbolFunctionRemark
1 VIN Power supply 5V to 48V input Input
2 GND Power supply GND input GND
3 GND Power supply GND input GND
4 Reserve Differential signal D- I/O
5 Reserve - -
6 Reserve  Differential signal D+ I/O
7 Reserve - -
8 VBUS 5V output for UART interface Output
9 GND Power supply GND input GND
10 Reserve UART1_RX I/O
11 RS485_A RS485 DATA+ I/O
12 Reserve UART1_TX I/O
13 RS485_B RS485 DATA- I/O
14 GND Power supply GND input GND
15 VIN Power supply 5V to 48V input Input
16 GND Power supply GND input GND
 

CON2 definition:

PinSymbolFunctionRemark
1 IO_0 ADC,DAC,Timer,Event,I/O TTL signal voltage is 3.3V
2 +3V3 3.3V power for JTAG interface Output
3 IO_1 ADC,Timer,Event,I/O TTL signal voltage is 3.3V
4 SWCLK CLK pin for JTAG interface Input
5 IO_2 ADC,Timer,Event,I/O TTL signal voltage is 3.3V
6 GND GND Output
7 IO_3 RST,Timer,Event,I/O TTL signal voltage is 3.3V
8 SWDIO Data pin for JTAG interface I/O
9 IO_4 RST,Timer,Event,I/O TTL signal voltage is 3.3V
10 NRST Reset pin for JTAG interface Input
11 IO_5 ADC,Timer,Event,I/O TTL signal voltage is 3.3V
12 GND GND Output
13 IO_6 RST,Timer,Event,I/O TTL signal voltage is 3.3V
14 WKUP WKup,ADC,Timer,Event,I/O TTL signal voltage is 3.3V
15 IO_7 RST,ADC,Event,I/O TTL signal voltage is 3.3V
16 BOOT0 Lo: Internal flash boot (Default)
Hi: External flash boot
TTL signal voltage is 3.3V

 

Display Usage

Functional description

Smart Display can be used to display the coordinate, status and data information provided by the connected HOST device. Customers can configure the position coordinates they want to display in normal operation mode.

The Display is designed to be easily connected to a controller network, and to use the register type of Holding Register.

Splash Screen

The default splash image is shown below.

This product is produced as a generic product. If you require a custom splash image for your application, contact us to discuss.


Default Selection

Press the preferred application and hold for 3 seconds for the first time power on.
 

Winstar's Smart Display Default Selection


Acquisition of Displayed Data

Smart Display uses the Modbus protocol to get and send the data.

On Config mode, customers can set the coordinates or type of objects; On Display mode, customers can send and get data of objects.

Configuring the Display

Winstar Smart Display RS-485 series offers an out-of-the-box Modbus development experience that will lower customers' development costs and speed time-to-market expectations.

The Smart Display can use wide-temperature are designed to support control applications in harsh operating conditions, which designed to be connected to a variety of different situation combinations, such as automotive, marine, power generation and oil-and-gas.

The Smart Display comes with standard UI objects to get customers project off the ground quickly. If customers need custom UI objects support, our engineers are here to help. Send over your contents in PNG/JPG format, we will send over a new set of UI objects within 3~5 working days.

The Smart Display is defined as a slave device, which is controlled by master device via RS485 bus command to render display content on the display screen and return touch event data with protocol objects.

Example Screen Layout (Industry application)

The screen layout described in this section is intended to demonstrate the settings of screen items that can be used in an industry application situation.

Example Screen Layout (Vehicle automotive)

The screen layout described in this section is intended to demonstrate the settings of screen items that can be used in a vehicle automotive situation.


Example Screen Layout (Medical application)

The screen layout described in this section is intended to demonstrate the settings of screen items that can be used in a Medical application situation.

 

EVALUATION KIT 

Evaluation Kit P/N WWSSDEMO39F-DA-13# available at the links:

ITA: https://www.first-components.com/it/wwssdemo39f-da-13

ENG: https://www.first-components.com/en/wwssdemo39f-da-13

Products specifications
Brand Winstar
Size 3.9"
Resolution 480x128
Active Area (mm) 95.04x25.34
Color Full Color
Power supply 5V
Display Interface RS485 + GPIO
View Angle IPS
Sunlight Readable High 601~1200cd/m²
Frame Yes
Touch Panel Capacitive
O. Temperature (°C) -30~80
Preferred - Not Preferred Preferred
Download
Products specifications
Brand Winstar
Size 3.9"
Resolution 480x128
Active Area (mm) 95.04x25.34
Color Full Color
Power supply 5V
Display Interface RS485 + GPIO
View Angle IPS
Sunlight Readable High 601~1200cd/m²
Frame Yes
Touch Panel Capacitive
O. Temperature (°C) -30~80
Preferred - Not Preferred Preferred
Recently viewed