Wireless diagnostics that still respect the battery budget.
Connected-vehicle features have to work reliably and stay within strict power limits. This experiment uses an nRF52840 to bridge BLE to CAN-FD and proves the energy cost of advertising, connection, and diagnostic sessions.
The wireless stack is exercised in simulation first, then bound to hardware where precision power measurement turns assumptions into numbers.
Technical Overview
Hardware: Nordic nRF52840 dongle, µA-resolution power measurement, CAN-FD interface, optional i.MX93 gateway, and debug access.
Secure BLE keys and UDS seed-to-key DLLs come from the cryptography tool. UDS-over-wireless sequences run against Virtual Bus before live CAN-FD.
What This Demonstrates
- BLE-to-CAN-FD diagnostic bridge
- Wireless UDS session from a phone
- µA-resolution sleep and connection current
- Energy budget per diagnostic event
- Encrypted BLE channel management
- Active DTC readout over BLE during bench operation
- Simulation-first wireless validation