Sunton / CYD (Guition) · ESP32-S3 · 4.0" · 480×480
Sunton/Guition ESP32-4848S040C 4.0" Square specifications
The Sunton/Guition ESP32-4848S040C 4.0" Square is a 4.0" 480×480 display board by Sunton / CYD (Guition), built around the ESP32-S3 (ESP32-S3-WROOM-1 module) running at 240 MHz. The panel uses a ST7701 (RGB Parallel + 3-wire SPI init) controller over RGB565 Parallel (DPI) + SPI init sequence, with GT911 (I2C) touch input. Memory: 16 MB flash, 8 MB PSRAM; wireless: Wi-Fi and Bluetooth. LCD Ultra Pro supports it with a ready-made LVGL 8.4 display driver, so you can design its UI visually and export a complete Arduino project.
- Screen
- 4.0" · 480×480
- Chip
- ESP32-S3
- Memory
- 16 MB flash, 8 MB PSRAM
- Input
- capacitive touch
Specifications
| Manufacturer | Sunton / CYD (Guition) |
|---|---|
| Screen size | 4.0" |
| Resolution | 480×480 px |
| Colour depth | 16-bit |
| Display controller | ST7701 (RGB Parallel + 3-wire SPI init) |
| Display interface | RGB565 Parallel (DPI) + SPI init sequence |
| Touch | GT911 (I2C) |
| Microcontroller | ESP32-S3 |
| Module | ESP32-S3-WROOM-1 |
| CPU clock | 240 MHz |
| Internal SRAM | 512 KB |
| PSRAM | 8 MB |
| Flash | 16 MB |
| Wi-Fi | Yes |
| Bluetooth | Yes |
Free GPIOs and connectors
These GPIOs are not used by the display, touch or on-board peripherals, so you can wire your own sensors, buttons or relays to them.
| Pin | Capabilities | Note |
|---|---|---|
| GPIO 1 | GPIO, ADC | Free, broken out |
| GPIO 2 | GPIO, ADC | Free, broken out |
| GPIO 40 | GPIO | Broken out — on the relay version (ESP32-4848S040C I/Y/1, 86-box) it drives RELAY 1 (rzeldent esp32-4848S040CIY1) |
| GPIO 41 | GPIO | Free in this firmware config (SD card unused) — may physically be SD_MISO, needs verification |
| GPIO 42 | GPIO | Free in this firmware config (SD card unused) — may physically be SD_CS, needs verification |
| GPIO 43/TX | GPIO, UART_TX | UART0 TX (USB-UART bridge) |
| GPIO 44/RX | GPIO, UART_RX | UART0 RX (USB-UART bridge) |
LVGL support in LCD Ultra Pro
| Driver status | Compile-tested |
|---|---|
| Arduino export | Complete LVGL 8.4 project with the display driver |
| USB Live preview | No |
| Orientations | 0° |
| Brightness control | Hardware backlight dimming |
Pick this board in the editor and the canvas matches its exact resolution and shape. Build the interface with widgets, add events without code, try it in Live Preview, then export it as a ready-to-compile Arduino project. See the documentation for the workflow.
Frequently asked questions
What is the resolution of the Sunton/Guition ESP32-4848S040C 4.0" Square?
480×480 pixels on a 4.0" screen, driven at 16-bit colour depth.
Which display controller and interface does it use?
ST7701 (RGB Parallel + 3-wire SPI init) over RGB565 Parallel (DPI) + SPI init sequence.
Does the Sunton/Guition ESP32-4848S040C 4.0" Square have a touchscreen?
Yes — GT911 (I2C).
Which ESP32 chip and how much memory does it have?
ESP32-S3 (ESP32-S3-WROOM-1) at 240 MHz, 16 MB flash, 8 MB PSRAM.
Which GPIOs are free for my own sensors or relays?
7 GPIOs are free: GPIO 1, GPIO 2, GPIO 40, GPIO 41, GPIO 42, GPIO 43/TX, GPIO 44/RX.
Can I use LVGL on the Sunton/Guition ESP32-4848S040C 4.0" Square?
Yes. LCD Ultra Pro has a ready-made LVGL 8.4 display driver for this board (Compile-tested). Design the UI in the browser and export a ready-to-compile Arduino project.
Last updated: