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linux:bluetooth:advertisement [2018/09/28 08:55] – created niziak | linux:bluetooth:advertisement [2021/07/07 12:40] (current) – niziak | ||
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+ | ====== Advertisement ====== | ||
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BLE has 40 channels (wider spacing 2MHz than classic BT) | BLE has 40 channels (wider spacing 2MHz than classic BT) | ||
Channels 37, 38, 39 are designated to be advertisement channels. Those channels are located at begining, middle at end of radio band. | Channels 37, 38, 39 are designated to be advertisement channels. Those channels are located at begining, middle at end of radio band. | ||
Location was chosen to do not interact with main 3 WiFi channels (1,6,11) | Location was chosen to do not interact with main 3 WiFi channels (1,6,11) | ||
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+ | Each advertisement is transmitted on all 3 channels in 10ms intervals. | ||
Some of the most commonly used Advertising Data Types are: | Some of the most commonly used Advertising Data Types are: |