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The peripheral is responsible for responding to the central in appropriate ways.
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When a central discovers such a peripheral, the central requests to connect to the peripheral and begins exploring and interacting with the peripheral’s data. Centrals scan for nearby peripherals that might have data they’re interested in. Peripherals make their presence known by advertising the data they have over the air. For example, a digital thermostat equipped with Bluetooth low energy technology might provide the temperature of a room to an iOS app that then displays the temperature in a user-friendly way.Įach player performs a different set of tasks when carrying out its role. A central typically uses the information served up by a peripheral to accomplish some task. A peripheral typically has data that is needed by other devices. In Bluetooth low energy communication, there are two key players: the central and the peripheral. Centrals and Peripherals Are the Key Players in Core Bluetooth That said, it hides many of the low-level details of the specification from you, the developer, making it much easier for you to develop apps that interact with Bluetooth low energy devices. The Core Bluetooth framework is an abstraction of the Bluetooth low energy protocol stack. At a Glanceīluetooth low energy wireless technology is based on the Bluetooth 4.0 specification, which, among other things, defines a set of protocols for communicating between low energy devices.
#Other devices bluetooth peripheral device iphone 7 mac
As of macOS 10.9 and iOS 6, Mac and iOS devices can also function as Bluetooth low energy peripherals, serving data to other devices, including other Mac and iOS devices. For example, your app can discover, explore, and interact with low energy peripheral devices, such as heart rate monitors and digital thermostats.
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The Core Bluetooth framework provides the classes needed for your iOS and Mac apps to communicate with devices that are equipped with Bluetooth low energy wireless technology.