Firmware Updates over LoRaWAN
summary
Concrete implementation notes and results: an open reference implementation for FUOTA specifications on LoRaWAN uses multicast plus LDPC forward-error-correction and delta patches to push an ~8 kB delta in ~48 seconds to many devices at once. Devices verify a signed firmware manifest held in secure element before flashing. Example ports run on Mbed OS with ~18 KB RAM peak and ~140 KB flash, require ~3× storage for safe delta application, and work live on public and private networks.
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chapters (9)
- 0:00The need for IoT updates
- 2:18Challenges in LoRaWAN updates
- 6:24Developing the update protocol
- 10:13Standardization and reliability
- 13:23Security and patching strategy
- 17:35Network implementation details
- 20:24Reference architecture
- 24:22Summary and future outlook
- 28:32Q&A session
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