Advanced Bluetooth® Technology - Under the APIs
summary
Details Bluetooth Low Energy internals and measurable effects: claims range over a kilometre with LE Coded FEC, shows adaptive frequency hopping and GFSK modulation, and traces how MTU, L2CAP, Data Length Extensions and connection intervals affect throughput. Uses a protocol analyzer and benchmarks on Android/iOS plus Nordic dev boards running Zephyr to demonstrate real results: 100 kB transfer: 8 s → 0.5 s after MTU/le2m/interval tuning. Builds a 16-node mesh demo using proxy publish/subscribe and explains write command vs request tradeoffs.
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chapters (34)
- 0:00Introduction
- 2:46Bluetooth Basics
- 5:12Device Roles
- 6:56Attribute Table
- 10:23Bluetooth Reliability
- 14:43How Bluetooth Works
- 22:09Spread Spectrum
- 23:32Adaptive Frequency Hopping
- 25:27Spread Spectrum Broadcasting
- 26:44Channel Index
- 27:31Data Transfer Rate
- 28:42Symbol Range
- 29:35Application Data
- 30:46Attribute Protocol
- 32:03L2CAP
- 33:08LData Packet Length Extensions
- 33:50Connection Events
- 35:57LE1M
- 37:11Writeups
- 38:59Benchmark
- 40:12Range
- 42:15Forward Error Correction
- 43:40Low Energy Range
- 46:40Nodes
- 47:53Mesh Stack
- 48:19Demo
- 48:33How it works
- 50:00App demo
- 51:39Check of time
- 52:08Bluetooth 51
- 52:49Bluetooth LED Audio
- 54:43Isochronous Channels
- 55:31Bluetoothcom
- 57:10Wrap up
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