A compact custom development board based on the Raspberry Pi RP2040 microcontroller with an external 16 MB SPI flash and a crystal oscillator for a stable clock source. This repository contains the board files and firmware sources required to build, inspect, and program the board.

• RP2040 microcontroller (dual-core Cortex‑M0+)
• 16 MB external SPI flash memory
• External crystal oscillator for stable clocking
• Breakout pins for GPIO, power, and common peripherals
• All design and firmware files included in this repository

• MCU: RP2040 (Raspberry Pi)
• External flash: 16 MB SPI
• Clock: External crystal oscillator

Refer to the included schematic and PCB files for the definitive pinout. Open the schematic or the PCB source files in your preferred EDA tool for a complete pin mapping and mechanical details.

Contributions are welcome. Suggested workflow:

• Open an issue for bugs or feature requests.
• Fork and create a branch for changes.
• Submit a pull request with a clear description and tested changes.
• For hardware changes, include updated schematics, PCB files, and a short changelog.

CC-NC-BY

Repository owner: Tejaji-0