April 2017
Intermediate to advanced
242 pages
6h 10m
English
Content preview from Building Bluetooth Low Energy Systems
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Peripheral
Peripheral, on the other hand, resembles a slave in a master-slave architecture. It broadcasts advertisement packets for the central so that it can find it and then accepts the connection request. Even though it advertises the data, it is power and processing efficient.
Bluetooth Low Energy works on 40 channels with 2MHz spacing where the discovery is done by advertising. BLE supports a maximum data rate of about 1Mbps and provides AES-CCM encryption for confidentiality. 50-100 meters is the practical range of BLE with 10mW maximum power output.
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