Product Description
Product Description
Variant: RP2350-Touch-LCD-2.8C.
The RP2350 2.8inch Round Display Development Board combines an RP2350B with a round IPS touchscreen for developing graphical user interfaces. It supports embedded applications using LVGL and experimentation with Arm and RISC-V software on the same hardware. This variant is supplied as a raw display. Flash memory, a motion sensor, a real-time clock and battery charging management are integrated on the board.
The display uses an RGB interface, while touch input operates over I2C with interrupt support. External peripherals connect through GPIO, UART and I2C. USB-C provides programming and USB communication. Supported development options include C/C++, MicroPython and the Arduino IDE.
Highlights
- RP2350B microcontroller designed by Raspberry Pi
- Selectable dual-core architecture with Arm Cortex-M33 or Hazard3 RISC-V, up to 150 MHz
- 520 KB SRAM and 16 MB Flash with solder pads for PSRAM expansion
- Onboard 2.8inch LCD with 480 × 480 pixels
- Touch control over I2C with interrupt support
Technical Features
- Processor: RP2350B, two Cortex-M33 or two Hazard3 cores, maximum 150 MHz
- Memory: 520 KB SRAM, 16 MB Flash
- Display: round 2.8-inch IPS LCD, 480 × 480 pixels
- Optical specifications: 1200:1 contrast ratio, 160° viewing angle
- Display driver: ST7701; touch controller: GT911
- Interfaces: RGB, I2C, UART, GPIO, USB 1.1 with host and device support, PIO-USB over USB-C
- Sensors: six-axis QMI8658 and integrated temperature sensor
- Real-time clock: PCF85063; memory card slot: microSD
- Programmable I/O: twelve PIO state machines
- Battery connector: two-pin MX1.25 for a 3.7 V lithium battery; ETA6096 charging manager
- Voltage regulator: ME6217C33M5G, maximum 800 mA output current
- Software support: C/C++, MicroPython, Arduino IDE and LVGL
Application Areas
- Developing round touch-operated user interfaces with LVGL.
- Testing Arm and RISC-V programs on the RP2350B.
- Building motion-responsive displays using the integrated six-axis sensor.
- Developing battery-powered displays with real-time clock functions and microSD data storage.
Notes
- The internally connected I2C header supports I2C peripherals only and cannot be remapped to other functions.
- Solder pads are provided for PSRAM expansion; populated PSRAM is not specified.
- The charging indicator state is uncertain when no battery is connected.
What's Included
- 1 × RP2350-Touch-LCD-2.8C
- 1 × SH1.0 12PIN cable, approximately 100 mm
- 2 × SH1.0 4PIN cable, approximately 100 mm
