An ARM and RISC-V Feather with the Nordic nRF54L15, an onboard CMSIS-DAP debugger, and an nPM1300 PMIC. Public example board so you can see what a shared page looks like.

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

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

• 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

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

• Zephyr Board Support
• Debugger Firmware

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

Modified by KiCad Project Feb 17, 2025

• Removed Manufacturing files
• Update README.md