SLX Field Device Manager: Secure BLE OTA Firmware Updates
An internal Nordic nRF5340-DK project for updating embedded firmware through Bluetooth Low Energy when the device has no permanent Internet connection. Built with Zephyr, MCUboot and MCUmgr, it combines ECDSA P-256 signing, anti-downgrade rules, service mode, health checks and rollback.
Nordic nRF5340 / Zephyr RTOS / nRF Connect SDK / MCUboot / MCUmgr SMP / Bluetooth Low Energy / Web Bluetooth / ECDSA P-256