Model No. WL0F00039000FGDAASA00
►TFT Size: 3.9"
►TFT Resolution: 480×128 dots
►TFT View Direction: IPS
►TFT Touch Screen: Capacitive Touch Panel
►Communication Interface: RS485
►Protocol: Modbus + GPIO
►Brightness(cd/m²): 800
WL0F00039000FGDAASA00 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.: WF39FSWASDNG0) 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:
WINSTAR GUI Builder (Windows) enables drag-and-drop interface design with real-time preview. This WYSIWYG environment helps reduce development time and improve interface consistency across projects.
Request access to WINSTAR GUI Builder—contact us to get started.
Smart Display products use STMicroelectronics' (ST) controllers which support ST development tools such as TouchGFX and STM32CubeIDE. In addition to the WINSTAR GUI Builder, ST tools can also be used for designing WINSTAR Smart Display modules.
We also provide demo sets with all necessary accessories to help you realize your GUI design on WINSTAR Smart Displays.
| Item | Standard Value | Unit |
|---|---|---|
| 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 | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -30 | － | +80 | ℃ |
| Storage Temperature | TST | -40 | － | +90 | ℃ |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VIN | 5 | 5 | 48 | V |
| Supply Current | ICC | 420 | 460 | 50 | mA |
| Item | Description |
|---|---|
| LCM | WF39FSWASDNG0# |
| PCBA | SV10003R900FA00N0101 |
| Pin | Symbol | Function | Remark |
|---|---|---|---|
| 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 |
| Pin | Symbol | Function | Remark |
|---|---|---|---|
| 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 |
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