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Description
Core2350B Core Board Product Overview
The Core2350B is a high-performance core board, based on the Raspberry Pi RP2350B microcontroller chip. Featuring a unique dual-core dual-architecture design, it allows users to switch between dual-core ARM Cortex-M33 processors and dual-core Hazard3 RISC-V processors, both running at up to 150MHz. The board comes with 520KB SRAM and 16MB onboard Flash, with optional 2MB or 8MB PSRAM (or no PSRAM version). It includes an FPC 6PIN connector for USB Type-C via an adapter board. All 64 pins are arranged at a standard 2.54mm pitch for easy integration into custom carrier boards. It supports USB 1.1 host and device with drag-and-drop programming via USB mass storage. Ideal for industrial control, IoT, smart home, wearables, and other embedded applications. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Core2350B Core Board Core Features
Dual-Core Dual-Architecture Processor： Dual-core ARM Cortex-M33 and dual-core Hazard3 RISC-V processors, both running at up to 150MHz, with software-selectable architecture switching. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Large Memory & Storage： 520KB SRAM, 16MB onboard Flash, optional 2MB or 8MB PSRAM (no PSRAM version also available). The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Rich GPIO & Peripherals： 48 multifunctional GPIO pins, 2×I2C, 2×UART, 8×12-bit ADC, and 24 controllable PWM channels. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
12 Programmable I/O (PIO) State Machines： For custom peripheral support. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Low Power Design： Supports low-power sleep and休眠 modes. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Easy Development & Integration： Drag-and-drop programming via USB mass storage. 64 pins at 2.54mm pitch for easy integration. FPC 6PIN connector for USB Type-C via adapter board. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Development Environments： Supports C/C++ SDK, MicroPython, and Arduino IDE with complete SDK and open-source materials. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Core2350B Core Board Applications
Industrial Control & Automation： PLC controllers, equipment monitoring, data acquisition terminals. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
IoT & Edge Computing： IoT gateways, sensor nodes, edge data processing. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Smart Home： Smart hubs, environmental monitoring, security systems. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Wearables & Portable Devices： Health monitoring, motion tracking, portable instruments. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Education & Maker Projects： Embedded teaching, robotics competitions, DIY projects. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
HID Devices & Audio Processing： Keyboards, mice, audio players. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
Core2350B Core Board Key Advantages
The Core2350B retains the same processor core performance as the Raspberry Pi Pico 2 while offering greater storage capacity and a more flexible form factor. The 16MB onboard Flash is four times that of the Pico 2, providing ample space for large firmware, audio samples, or graphics resources. The optional 2MB or 8MB PSRAM further extends data memory for applications requiring large data handling. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
The dual-core dual-architecture design allows users to freely switch between the mature ARM Cortex-M33 ecosystem and the open-source RISC-V Hazard3 ecosystem, balancing stability and innovation. Eight 12-bit ADC channels and 24 PWM channels provide rich peripheral resources. The 48 multifunctional GPIO pins are arranged at a standard 2.54mm pitch for flexible use in both prototyping and mass production. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
The castellated design allows the core board to be soldered directly onto carrier boards like a component, making it ideal for mass product integration. Complete C/C++ SDK, MicroPython, and Arduino IDE support, combined with abundant open-source materials, enable rapid development. The RP2350B core board is a versatile embedded platform. RP2350B core board offers exceptional flexibility for developers.
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FAQ
1. What makes the RP2350B microcontroller on this core board special?
It is a Raspberry Pi‑designed MCU that uniquely supports dual‑core ARM Cortex‑M33 and dual‑core Hazard3 RISC‑V, with runtime switching between the two. This allows you to evaluate both ARM and RISC‑V ecosystems on the same hardware, or assign different cores to different architectures, greatly reducing multi‑platform development costs.
2. Does the board include a built‑in programmer? How do I load firmware?
Yes, the USB Type‑C port acts as the programmer. Press and hold the BOOT button while plugging in the USB cable, and the board appears as a removable drive on your computer. Simply drag‑and‑drop a UF2 file to flash and run the application—no external debugger required.
3. Is the 16 MB on‑board Flash large enough for real projects?
16 MB is very generous for embedded applications. It can hold a feature‑rich MicroPython firmware, a full LVGL graphics library, a lightweight AI model, or complex communication stacks. For extra storage, you can easily add a microSD card via the SPI interface.
4. What can the Programmable I/O (PIO) actually do, and what benefits does it bring?
PIO is a unique hardware block that behaves like a small programmable logic unit. It can emulate custom digital protocols—such as WS2812 LED drivers, precise pulse generation, vintage video signals, or non‑standard SPI variants—without loading the main CPU. For peripherals with special timing requirements, PIO often eliminates the need for CPLDs or extra dedicated ICs.
5. Can I use Arduino or MicroPython with this board?
Absolutely. The official C/C++ SDK and MicroPython port are production‑ready. The community also maintains an Arduino‑Pico core that works directly in the Arduino IDE. Whether you prefer bare‑metal register access or rapid Python prototyping, you will find a suitable workflow.
6. How many ADC channels does the core board have, and what resolution?
The RP2350B provides four 12‑bit SAR ADC channels capable of up to 500 ksps. They are accessible through GPIO pins and are suitable for monitoring battery voltage, potentiometer positions, or analog sensor signals—more than adequate for most IoT and industrial sensing tasks.
7. Can I directly drive a TFT display with this board?
Yes. Besides standard SPI displays, the RP2350B includes an HSTX (High‑Speed Transmission) interface that can output DVI video. With appropriate GPIO resistors or an external HDMI socket, you can create a simple embedded GUI console or digital dashboard without a dedicated display driver IC.
8. What are the dimensions and form factor? Is it suitable for automated production?
The board uses a hybrid stamp‑hole and header design, measuring approximately 50 mm × 25 mm. The castellated edges allow direct SMT soldering onto your baseboard for machine assembly, while 2.54 mm header holes are provided for prototyping with jumper wires. This design supports both manual debugging and high‑volume manufacturing.
9. How low is the standby current in low‑power modes?
In Dormant mode, the cores, most peripherals, and PLLs are shut down, reducing board‑level current to the tens of microamps. This makes it very suitable for battery‑powered applications that periodically wake up to sample sensors, such as environmental monitoring nodes or wearables.
10. What should I consider if I want to replace an existing STM32 design with this core board?
First, check peripheral requirements: the RP2350B has plenty of UARTs, I²C, SPI, and PWM, but fewer ADC channels and no DAC or CAN controller. PIO can often compensate for missing dedicated peripherals (like I2S or specialized PWM). On the software side, migrating from STM32 HAL to the Pico SDK involves some porting effort, but the API is clean and the learning curve is gentle. Prototype with this core board first to confirm functionality before final PCB integration.