What is it?

The ACH-RP2350A-PICO-16MB is an upgraded, pro-tier development board based on Raspberry Pi’s cutting-edge RP2350A microcontroller. Designed and hand-assembled in Vila Nova de Gaia / Porto, Portugal, it takes the familiar Raspberry Pi Pico form factor and equips it with the features serious developers always missed on the original board.

Featuring a selectable dual-core engine (Dual ARM Cortex-M33 or Dual Hazard3 RISC-V @ 150 MHz) and a massive 16 MB Quad-SPI NOR Flash (8× the capacity of the standard 2MB Pico), this board is ready for complex MicroPython scripting, retro gaming emulation, audio DSP, and high-speed data acquisition.

What makes it special?

• Massive 16MB NOR Flash (8× More Storage): Never worry about filesystem limits again. Store full MicroPython UF2 runtimes, wavetables, graphics, and data logs with ease.
• Dedicated Hardware SWD Debug Port (JST SH 1.0mm 3-Pin): Direct plug-and-play compatibility with the official Raspberry Pi Debug Probe (GND, SWDIO, SWCLK). Perform real-time, non-intrusive step-by-step hardware debugging without messy breadboard wiring.
• Solderless AchiWire I2C Port (JST SH 1.0mm 4-Pin): Seamlessly connect SparkFun Qwiic and Adafruit STEMMA QT sensor breakout boards. Includes built-in 4.7kΩ pull-up resistors on SDA (GP14) and SCL (GP13).
• Physical RUN & BOOT Buttons: Reset or enter UF2 mass-storage bootloader mode with dedicated tactile push-buttons without having to disconnect the USB-C cable.
• Onboard WS2812 Smart RGB LED: Multi-color addressable LED on GP 25 for animated status indicators and diagnostics.
• Standard Pico Footprint: 40-pin layout (2.54mm pitch) with castellated edge pads. Fits directly into standard Pico breadboard setups or can be surface-mounted onto custom motherboards.
• European Engineering: Designed and assembled in Porto, Portugal 🇵🇹 with fast, reliable EU shipping without surprise customs delays.

Technical Specifications

• Microcontroller: Raspberry Pi RP2350A
• Core Architecture: Selectable Dual ARM Cortex-M33 / Dual RISC-V Hazard3 @ 150 MHz
• SRAM: 520 KB in 10 independently accessible banks
• Programmable I/O: 3× PIO blocks (12 state machines total)
• Flash Memory: 16 MB Winbond W25Q128 Quad-SPI NOR Flash
• Crystal Oscillator: Abracon ABM8 12.000 MHz precision SMD crystal
• USB Connector: 16-pin USB Type-C (USB 1.1 Host/Device) with UF2 drag-and-drop bootloader
• Power Input (VIN): 3.3V to 5.5V via VIN/VBUS pins or 5V via USB-C
• Voltage Regulator: Texas Instruments TLV75533 (3.3V @ 500 mA output with current limit)
• I2C Connector: 4-pin JST SH 1.0mm AchiWire port (Qwiic / STEMMA QT compatible)
  • Pin 1: GND | Pin 2: +3.3V | Pin 3: SDA (GP 14) | Pin 4: SCL (GP 13)
• SWD Debug Connector: 3-pin JST SH 1.0mm (GND / SWDIO / SWCLK)
• Indicators: Green Power LED (3.3V rail) + Addressable WS2812 RGB LED (GP 25)
• Buttons: Tactile RUN (Hardware Reset) + BOOT (BOOTSEL)
• Pin Form Factor: Standard Pico 40-pin layout with castellated pads

Ecosystem Compatibility

• Raspberry Pi Pico C/C++ SDK: 100% native compatibility.
• MicroPython & CircuitPython: Pre-compiled UF2 binaries run immediately with full 16MB flash recognition.
• Arduino IDE: Supported via the community-favorite Earle Philhower arduino-pico core (Raspberry Pi Pico 2).

What's included in the box?

• 1× ACH-RP2350A-PICO-16MB Development Board (tested and pre-flashed)
• 2× 20-pin male headers (2.54mm pitch, loose)
• Packed in an ESD anti-static protective bag

Open Source Hardware & Documentation

Schematics, full pinout charts, 3D STEP models, and code examples are open source on GitHub: 👉 https://github.com/AchirawareElectronics/ACH-RP2350A-PICO-16MB

At AchiraWare Electronics, all our boards and hardware products are carefully tested, packed in anti-static ESD packaging, and dispatched directly from our studio in Porto, Portugal.

1. Shipping Destinations We ship to customers across Portugal, Spain, and throughout the European Union. If you are located outside the EU, please reach out to us at customerservice@achiraware.com before placing an order.

2. Processing & Dispatch Times In-stock items: Orders are processed and dispatched within 1 to 2 business days (Monday to Friday, excluding national holidays in Portugal). Once your package has been shipped, you will receive an email confirmation with your tracking number.

3. Estimated Delivery Times Portugal (Continental): 24 to 48 hours (via CTT / Express Courier). Spain & Iberian Peninsula: 2 to 4 business days. Rest of the European Union: 3 to 7 business days depending on destination country and local postal services.

4. Shipping Costs Shipping rates are calculated dynamically at checkout based on your destination country and the weight/dimensions of your order.

5. Customs & Import Duties (EU Orders) Since all orders are shipped from Portugal (EU Member State), there are no customs duties or import tariffs for orders delivered within the European Union Single Market.

6. Damaged or Lost Shipments If your order arrives damaged or appears to have been opened in transit, please take photographs of the outer packaging and contents and notify us within 48 hours at customerservice@achiraware.com so we can resolve it immediately.