Sunton / CYD · ESP32 · 3.2" · 240×320
Sunton (CYD) ESP32-2432S032 3.2" ("CYD v2") specifications
The Sunton (CYD) ESP32-2432S032 3.2" ("CYD v2") is a 3.2" 240×320 display board by Sunton / CYD, built around the ESP32 (ESP32-WROOM-32 module) running at 240 MHz. The panel uses a ST7789 (SPI, IPS) controller over SPI, with XPT2046 (resistive, 'R' variant) OR GT911 (capacitive, 'C' variant) — different pins touch input. Memory: 4 MB flash, no 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
- 3.2" · 240×320
- Chip
- ESP32
- Memory
- 4 MB flash, no PSRAM
- Input
- resistive touch
Specifications
| Manufacturer | Sunton / CYD |
|---|---|
| Screen size | 3.2" |
| Resolution | 240×320 px |
| Colour depth | 16-bit |
| Display controller | ST7789 (SPI, IPS) |
| Display interface | SPI |
| Touch | XPT2046 (resistive, 'R' variant) OR GT911 (capacitive, 'C' variant) — different pins |
| Microcontroller | ESP32 |
| Module | ESP32-WROOM-32 |
| CPU clock | 240 MHz |
| Internal SRAM | 520 KB |
| PSRAM | None |
| Flash | 4 MB |
| Wi-Fi | Yes |
| Bluetooth | Yes |
| Hardware variant | Resistive “R” version (XPT2046 touch). The capacitive “C” version (GT911) is not covered. |
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 0 | GPIO, BOOT | Boot button / IO0 |
| GPIO 1/TX | GPIO, UART_TX | UART0 TX |
| GPIO 3/RX | GPIO, UART_RX | UART0 RX |
| GPIO 22 | GPIO, PWM | Free, broken out |
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°, 90° |
| 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 (CYD) ESP32-2432S032 3.2" ("CYD v2")?
240×320 pixels on a 3.2" screen, driven at 16-bit colour depth.
Which display controller and interface does it use?
ST7789 (SPI, IPS) over SPI.
Does the Sunton (CYD) ESP32-2432S032 3.2" ("CYD v2") have a touchscreen?
Yes — XPT2046 (resistive, 'R' variant) OR GT911 (capacitive, 'C' variant) — different pins.
Which ESP32 chip and how much memory does it have?
ESP32 (ESP32-WROOM-32) at 240 MHz, 4 MB flash, no PSRAM.
Which GPIOs are free for my own sensors or relays?
4 GPIOs are free: GPIO 0, GPIO 1/TX, GPIO 3/RX, GPIO 22.
Can I use LVGL on the Sunton (CYD) ESP32-2432S032 3.2" ("CYD v2")?
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.
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