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kicad/demos/royalblue54L_feather/README.md

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RoyalBlue54L Feather

An ARM + RISC-V Feather board with the new nRF54L15, built-in debugger, and smart PMIC

RoyalBlue54L Feather

Overview

The RoyalBlue54L--familiar Feather formfactor with distinctive features. Nordic's next-gen nRF54L15, an onboard CMSIS-DAP debugger + UART bridge, and smart power-management features from the nPM1300 enable rapid development for your next Bluetooth 6.0, Thread, Matter, Zigbee, Amazon Sidewalk, or proprietary wireless project.

Crowd Supply project link: https://www.crowdsupply.com/lords-boards/royalblue54l-feather

Hardware Features

  • Dual-core processing power:
    • ARM Cortex-M33 at 128MHz
    • RISC-V co-processor at 128MHz
  • Comprehensive memory configuration:
    • 1.5MB of non-volatile memory (NVM)
    • 256KB of RAM
    • 2MB external flash
  • Advanced wireless capabilities:
    • BLE 6.0 support with channel sounding for distance estimation
    • 4Mbps PHY for proprietary wireless protocols
    • 30-50% power reduction compared to nRF52 series
  • Integrated development tools:
    • CMSIS-DAP debugger (nRF52833-based)
    • USB-to-UART bridge
    • Open source, Zephyr RTOS-based firmware
  • Smart power management:
    • USB-C charging up to 800mA with nPM1300
    • High-accuracy battery fuel gauge
  • Connectivity:
    • JST-PH connector
    • STEMMA-QT/Qwiic port
    • NFC antenna connector
  • User interfaces:
    • User LED
    • RGB LED (nPM1300-driven)
    • User button
    • Reset button

Project Contents

This project contains the hardware design files for the RoyalBlue54L Feather. The board is designed with KiCAD and includes:

  • Schematic files
  • PCB layout
  • Bill of Materials (BOM)
  • Documentation

Related Repositories

License

Hardware files are released under CERN-OHL-V2-P.

Modification Note

Modified by KiCad Project Feb 17, 2025

  • Removed Manufacturing files
  • Update README.md