August 2017
Intermediate to advanced
278 pages
6h 1m
English
Content preview from IoT Projects with Bluetooth Low Energy
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Controller
Simply speaking, the controller is the actual Bluetooth chip or hardware, which facilitates transmission and receipt of Bluetooth signals:
Figure 10: TI CC2540 Bluetooth Low Energy SoC
It consists of the Link Layer and the Physical Layer. As the name already suggests, the Physical layer consists of all the complex analog circuits, which transmit and receive the digital data over the air. The Link Layer, on the other hand, is responsible for scanning, advertising, creating, and maintaining links (connections) between devices. The link layer can have five states: Standby, Advertising, Scanning, Initiating, and Connection (master- ...