An Introduction to Bluetooth mesh for Developers
summary
Bluetooth mesh forms secure many‑to‑many BLE networks sized for smart buildings, claiming reach across 127 hops and tens of thousands of nodes while recommending ~5% of nodes as relays. It uses small 29‑octet packets at 1 Mb/s to reduce collisions, mandatory AES‑CCM encryption with network/application/device keys and provisioning/key rotation, and a friendship mode for low‑power nodes. A working prototype of 64 micro:bits running Zephyr via a proxy laptop demonstrates multicast on/off, level, delta and move messages and it succeeds in the demo.
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chapters (30)
- 0:00Introduction
- 2:08Bluetooth technologies
- 5:40Bluetooth mesh vs Bluetooth low energy
- 6:16Network level concepts
- 6:30Multihop
- 12:10Nodes
- 12:48Relays
- 14:07Friendship
- 18:03Proxy
- 19:55Messages
- 24:07Publish and subscribe
- 26:11Lock nodes
- 26:23Physical nodes
- 27:53Models
- 28:33Product
- 29:42Provisioning
- 38:42Demonstration
- 41:42Daylight harvesting
- 47:07The next few slides
- 47:26Video demo
- 47:45Devices
- 48:27GoAwayWay
- 49:29Generic Meshes
- 49:50Changing group address
- 50:06Unicast addresses
- 50:17Absolute levels
- 50:44Delta
- 51:13Move
- 51:27Transition
- 51:40More slides
