I. Product Introduction
2-inch capacitive touch screen, display driver ST7789P3, touch driver CST816D, 320×240 resolution.This is a 2-inch capacitive touch screen driver board designed for embedded display applications, paired with a 2.0-inch TFT LCD module. It supports 320×240 resolution, color images, text, menu interfaces, and touch interaction.
The display uses the ST7789P3 driver IC, and the touch part uses the CST816D touch IC. The LCD is controlled via SPI, and the capacitive touch communicates with the host via I2C, making it easy to interface with platforms such as STM32, ESP32, Arduino, and Raspberry Pi.
II. Product Features
- 2.0-inch color display with 320×240 resolution
- Display driver IC: ST7789P3, SPI interface
- Capacitive touch IC: CST816D, I2C interface
- Supports 262K colors for colorful icons, buttons, and GUI
- Onboard level shift IC, supports 3.3V and 5V operating voltage
III. Product Specifications
| Parameter | Value |
|---|---|
| Dimensions | 52mm × 37mm |
| Resolution | 320 × 240 |
| Display Colors | RGB 262K |
| Display Interface | SPI |
| Touch Interface | I2C |
| Display Driver IC | ST7789P3 |
| Touch Controller IC | CST816D |
| Viewing Area | 40.8mm × 30.6mm |
| Supply Voltage | 3.3V / 5V |
3.1 Module Resources
①Control Interface: 1.25mm pitch 12P connector
②Capacitive Touch FPC Connector
③LCD Screen FPC Connector
④M2.5 SMD Copper Standoff
3.2 Pin Definition
| Pin Name | Description |
|---|---|
| VCC | Power Positive |
| GND | Power Ground |
| SCK | SPI Clock |
| MOSI | SPI Data Output |
| LCD_RST | LCD Reset |
| LCD_DC | LCD Data/Command Select |
| LCD_CS | LCD Chip Select |
| LCD_BL | LCD Backlight Control |
| TP_RST | Touch Reset |
| TP_SCL | Touch I2C Clock |
| TP_SDA | Touch I2C Data |
| TP_INT | Touch Interrupt |
IV Precautions
- It is recommended to match the power voltage with the host GPIO level to ensure communication compatibility
- Do not plug/unplug the module while powered on
- Keep the product dry and avoid liquid contact
- Avoid dusty, high-temperature, or rapid temperature change environments
- Do not disassemble or handle the product roughly
Wiki
https://seengreat.com/wiki/212/
Package Contents
①2inch LCD Display CTP × 1
②12P 1.25mm pitch to Dupont female header cable, 20cm × 1
