January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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BR/EDR operation
Classic Bluetooth (BR/EDR) mode is connection-orientated. If a device is connected, the link is maintained even if no data is in being communicated. Before any Bluetooth connection transpires, a device must be discoverable for it to respond to scans of a physical channel and subsequently respond with its device address and other parameters. A device must be in a connectable mode to monitor its page scan.
The connection process proceeds in three steps:
- Inquiry: In this phase, two Bluetooth devices have never associated or bonded; they know nothing of each other. The devices must discover each other through an inquiry request. If the other device is listening, it may respond with its BR_ADDR address.
- Paging: Paging or connecting ...
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