1.54inch Touch LCD Module
The 1.54inch Touch LCD Module is a 1.54inch IPS touch color display module featuring 240×240 high resolution, supporting 262K true color display. It delivers clear and delicate visuals with excellent performance. Equipped with a high-transmittance capacitive touch panel, it offers responsive touch sensing and long service life. The module integrates the ST7789S display driver IC and the CST816D capacitive touch IC, communicating via SPI and I2C interfaces respectively, which minimizes pin usage and simplifies hardware integration. An onboard level shifter ensures compatibility with both 3.3V and 5V power inputs, allowing seamless connection to mainstream controller platforms such as Raspberry Pi, ESP32, Pico, Arduino, and STM32.
| SKU | Product |
|---|
| 34370 | 1.54inch Touch LCD Module |
Specifications
| Parameter | Specification |
|---|
| Operating Voltage | 3.3V / 5V |
| Resolution | 240 × 240 pixels |
| Display Driver | ST7789S |
| Touch Chip | CST816D |
| Display Interface | 4-wire SPI |
| Touch Interface | I2C |
| Display Panel | IPS |
| Touch Type | Capacitive |
| Display Size | 27.72 × 27.72 (mm) |
| Pixel Size | 0.1155 × 0.1155 (mm) |
| Product Size | 40.2 × 40.2 (mm) |
Interface Description
| Function Pin | Description | 12PIN Number | 18PIN Number |
|---|
| VCC | Power positive (3.3V / 5V input) | 1 | 1 |
| GND | Power ground | 2 | 3 |
| MOSI | SPI data pin (Master Out Slave In) | 3 | 5 |
| SCLK | SPI clock pin | 4 | 4 |
| LCD_CS | LCD chip select, active low | 5 | 9 |
| LCD_DC | LCD data/command control, low for command, high for data | 6 | 7 |
| LCD_RST | LCD reset, active low | 7 | 8 |
| LCD_BL | LCD backlight control | 8 | 2 |
| TP_SDA | Touch panel I2C data pin | 9 | 14 |
| TP_SCL | Touch panel I2C clock pin | 10 | 13 |
| TP_RST | Touch panel reset, active low | 11 | 12 |
| TP_INT | Touch panel interrupt output | 12 | 15 |
Dimensions
