nRF54L15 BLE Fitness Tracker
Build an ultra-low-power BLE fitness tracker with the nRF54L15 — leveraging CRACEN hardware security, RISC-V co-processor for always-on sensing, and BLE 5.4 for multi-day battery life.
Build an ultra-low-power BLE fitness tracker with the nRF54L15 — leveraging CRACEN hardware security, RISC-V co-processor for always-on sensing, and BLE 5.4 for multi-day battery life.
Platform: nRF54L15
Next-generation ultra-low-power Bluetooth 5.4 SoC with RISC-V and ARM Cortex-M33 cores. Designed for ultra-constrained battery-powered devices.
Use Case: BLE Fitness Tracker
Wearable fitness device that tracks activity, heart rate, and sleep patterns over Bluetooth Low Energy, syncing data to a companion mobile app.
Why This Combination
The nRF54L15's RISC-V co-processor handles always-on gesture and step counting while the Cortex-M33 sleeps, enabling fitness trackers that combine advanced features with weeks of battery life.
Key Protocols
ble
What FirmwareMaestro Generates
For this solution, FirmwareMaestro produces a complete project package:
- Product Requirements (PRD)
- Firmware Architecture
- Hardware Abstraction Layer (HAL) design
- State Machine specification
- Code Scaffold (
main.c,prj.conf,CMakeLists.txt,Kconfig) - Devicetree overlay for the target board
- AI-pair-programming
.cursorrules - Build and flash instructions
See the Code Scaffolds guide for details.
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