RP2350B development board with 3.5" touch LCD 320x480px + OV5640 camera + case - Waveshare 33896

Description

The development board with RP2350B microcontroller integrates a 3.5" IPS display and a capacitive touch panel, supporting projects with a graphical user interface. The 320 x 480 px display with 65K colors operates with the ST7796 driver over SPI, while the FT6336 touch controller uses the I2C bus, reducing GPIO line usage.

The microcontroller uses a dual-core, dual-architecture design, allowing operation with either two ARM Cortex-M33 cores or two Hazard3 RISC-V cores at up to 150 MHz. The board includes 520 KB of SRAM and 16 MB of Flash memory, along with peripherals such as an audio codec, a 6-axis IMU sensor, a real-time clock, and a power management chip.

The camera interface supports modules compatible with OV2640 or OV5640, and the included OV5640 camera enables image processing applications. The USB Type-C connector supports drag-and-drop programming as well as USB device and host modes. The included enclosure protects the electronics and simplifies integration into finished designs. The board can be used in IoT systems, control panels, HMI devices, and projects requiring graphics, touch, audio, and sensor support.

1. RP2350B - Dual-core and dual-architecture design, up to 150 MHz operating frequency
2. Flash memory: 16 MB
3. PCF85063 - RTC chip
4. GPIO header 2.54 mm pitch - Exposed I/O pins for expansion
5. QMI8658 - 6-axis IMU (3-axis accelerometer + 3-axis gyroscope)
6. MX1.25 battery connector - For 3.7 V Li-Ion battery, supports charging and discharging with adjustable current
7. RTC battery connector - For real-time clock backup
8. Microphone
9. Power indicator
10. ES8311 - Low-power audio codec
11. USB Type-C connector - Programming and USB 1.1 device/host support
12. Charge indicator
13. AXP2101 - Power management chip
14. PWR button - Power control with configurable function
15. RESET button
16. BOOT button - Enter download mode during reset
17. MX1.25 speaker connector
18. Camera interface - Supports OV5640 and OV2640 modules
19. TF card slot (microSD)
20. Debug interface

Features

• Microcontroller: RP2350B, dual-core, dual-architecture (ARM Cortex-M33 or Hazard3 RISC-V), up to 150 MHz
• Flash memory: 16 MB
• SRAM: 520 KB
• Display: IPS 3.5", 320 x 480 px, 65K colors
• LCD driver: ST7796 (SPI)
• Touch panel: Capacitive, FT6336 (I2C)
• Audio codec: ES8311, microphone input and audio output
• IMU sensor: QMI8658, 6-axis (accelerometer + gyroscope)
• RTC: PCF85063
• Power management chip: AXP2101
• Camera interface: Supports OV2640 / OV5640 modules
• USB interface: USB Type-C, USB 1.1 device/host
• GPIO: 22 multifunctional lines
• Interfaces: 2 x SPI, 2 x I2C, 2 x UART
• ADC: 7 channels, 12-bit
• PWM: 18 channels
• PIO: 12 state machines
• Temperature sensor: Built into the microcontroller
• Memory card slot: TF (microSD)
• Power supply: 3.7 V Li-Ion battery with charging support

Kit includes

• RP2350-Touch-LCD-3.5-C board with case and OV5640 camera