Product description: 1.28'' IPS LCD touch screen 240 x 240 px - round - Waveshare 24155
Round display with a touch panel from Waveshare. The diagonal of the screen is 1.28 " , its resolution is 240 x 240 px , it can display an image with the amount 65 thousand colors. It has a built-in GC9A01 driver and a CST816S touch control chip that use SPI and I2C communication, respectively. The display is versatile, compatible with boards such as Raspberry Pi, Raspberry Pi Pico, Arduino or STM32. It can be used for various projects, e.g. as a smartwatch screen.
The manufacturer provides a user's guide with sample projects and program codes, which makes it much easier to start working with the module.
Main features of the display
- IPS LCD display
- Touchpad
- Diagonal 1.28", resolution 240 x 240 px
- 65 thousand colors
- Clear and colorful display effect
- Quick touch response
- Communication via SPI and I2C bus
- Possibility of cooperation Raspberry Pi, Raspberry Pi Pico, Arduino and STM32
- Built-in GC9A01 driver and CST816S touch control chip
Example application
- Smartwatch
- Control Center
- Environmental sensor monitor
- Pulse monitor display
- Pedometer
- Movement speed indicator
Display connection
The display has leads that allow you to conveniently connect it to the selected controller with the use of wires . It is powered with the voltage of 3.3 V / 5 V.
Pin description
- VCC - 3.3V / 5V power supply
- GND - ground
- MISO - SPI data input
- MOSI - SPI data output
- SCLK - SPI clock line
- LCD_CS - selection of the LCD system (activated by low state)
- LCD_DC - selection of LCD data/commands (high for data, low for commands)
- LCD_RST - LCD reset (activated by low state)
- LCD_BL - LCD backlight
- TP_SDA - TP data pin
- TP_SCL - TP clock pin
- TP_INT - TP interrupt pin
- TP_RST - TP reset (activated by low state)
Display technical specification
- Manufacturer: Waveshare
- Display type: IPS LCD
- Resolution: 240 x 240 px
- Color gamut: 65K RGB
- Display controller: GC9A01
- Touch panel controller: CST816S
- Communication: SPI, I2C
- Supply voltage: 3.3 or 5 V
- Screen diameter: 32.4mm