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RP2350-Touch-LCD-3.5

RP2350-Touch-LCD-3.5-C Product Image

This product is a high-performance, highly integrated microcontroller development board independently designed by Waveshare. Within a compact form factor, it integrates a 3.5inch capacitive high-definition IPS screen, a highly integrated power management chip, a low-power audio codec chip, a camera interface, a six-axis sensor (3-axis accelerometer and 3-axis gyroscope), an RTC, a TF card slot, and other peripherals, facilitating development and integration into end products.

SKUProduct
33894RP2350-Touch-LCD-3.5
33896RP2350-Touch-LCD-3.5-C

Features​

  • Utilizes the RP2350B microcontroller chip designed by Raspberry Pi
  • Unique dual-core, dual-architecture, featuring dual-core ARM Cortex-M33 processors and dual-core Hazard3 RISC-V processors, both operating at up to 150MHz, allowing flexible switching between the two architectures for users
  • Built-in 520KB of SRAM and 16MB of on-chip Flash
  • Utilizes a Type-C port, eliminating concerns about plug orientation.
  • Built-in 3.5inch capacitive touch high-definition IPS display with a resolution of 320×480, 65K colors for clear color pictures
  • Embedded with ST7796 driver chip and FT6336 capacitive touch chip, communicating through SPI and I2C interfaces respectively, minimizes required IO pins
  • On-board camera interface, compatible with mainstream cameras such as OV2640 and OV5640, suitable for image and video capture
  • Onboard 3.7V MX1.25 lithium battery recharge/discharge header.
  • USB1.1 host and slave device support
  • Supports low-power sleep and hibernation modes
  • Drag-and-drop programming using mass storage over USB
  • 22 × multi-functional GPIO pins
  • 2 × SPI, 2 × I2C, 2 × UART, 7 × 12-bit ADC and 18 × controllable PWM channels
  • Accurate on-chip clock and timer
  • Built-in temperature sensor for real-time chip temperature monitoring
  • 12 × programmable I/O (PIO) state machines for custom peripheral support

Onboard Resources​

RP2350-Touch-LCD-3.5 Hardware Resources

  1. RP2350B Dual-core, dual-architecture processor, up to 150MHz operating frequency
  2. 16MB Flash For storing programs and data
  3. PCF85063 RTC clock chip
  4. 2.54mm Pin Header Interface Brings out available IO function pins for easy expansion
  5. QMI8658 6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer
  6. MX1.25 Lithium Battery Interface For connecting a 3.7V lithium battery, supports charging and discharging, with adjustable charging current
  7. SH1.0 RTC Battery Interface Supports connecting a rechargeable RTC battery
  8. Microphone For audio capture
  9. Power Indicator Indicates system power status
  10. ES8311 Low-power audio codec chip
  11. USB Type-C Interface For program download, supports USB 1.1 host and device modes
  12. Charging Indicator Indicates battery charging status
  13. AXP2101 Highly integrated power management chip
  14. PWR Power Button Controls power on/off and supports custom functions
  15. RESET Button System reset button
  16. BOOT Button Press during reset to enter download mode
  17. MX1.25 Speaker Connector For connecting an external speaker
  18. Camera Interface Supports mainstream cameras such as OV5640 / OV2640
  19. TF Card Slot Supports TF card for storage expansion
  20. Debug Interface Convenient for program downloading and online debugging

Interfaces​

RP2350-Touch-LCD-3.5 Pin Definition

Dimensions​

Without Case​

RP2350-Touch-LCD-3.5 Without Case

With Case​

RP2350-Touch-LCD-3.5 With Case

Development Methods​

The RP2350-Touch-LCD-3.5 supports three programming languages: MicroPython, C/C++, and Arduino, offering developers flexible choices. You can select the appropriate development tools and programming methods based on project requirements and personal preference:

  • Thonny IDE (Working with MicroPython): Thonny is a lightweight Python Integrated Development Environment designed for beginners and educational scenarios, now widely used for MicroPython / CircuitPython development. Its interface is simple and intuitive, featuring a built-in Python interpreter, support for serial REPL, code flashing, and debugging, with a straightforward setup process. MicroPython is easy to learn and runs without compilation, making it ideal for beginners to quickly start embedded development. You can refer to the Working with MicroPython for initial setup, which provides detailed environment configuration steps and example programs.

  • VS Code + Pico SDK (Working with C/C++): VS Code is a powerful cross-platform code editor. By installing the Pico VSCode extension, a complete C/C++ development environment can be quickly set up. This extension integrates the Pico SDK toolchain, CMake build system, flashing and debugging tools, supports graphical operations, and offers high development efficiency. C/C++ development fully utilizes hardware performance, making it suitable for projects with higher performance requirements and professional developers, and is more applicable for complex embedded applications. You can refer to the Working with C/C++ for initial setup, which provides detailed environment configuration steps and example programs.

  • Arduino IDE (Working with Arduino): The Arduino IDE is a convenient, flexible, and easy-to-use open-source electronics prototyping platform. Arduino boasts a vast global user community, offering a massive library of open-source code, project examples, tutorials, and rich library resources. These libraries encapsulate complex functionalities, allowing developers to implement various features quickly without delving into low-level details. It is well-suited for rapid development and prototype verification, significantly shortening development cycles. You can refer to the Working with Arduino for initial setup, which provides detailed environment configuration steps and example programs.