Datasheet

BLEAdvertising

'Advertising' is what makes your Bluetooth Low Energy devices visible to other devices in listening range. The radio

sends out specially formatter advertising packets that contain information like the device name, whether you can

connect to the device (or if it only advertises), etc.

You can also include custom data in the advertising packet, which is essential how beacons work.

The

BLEAdvertisingData and BLEAdvertising

classes exposes a number of helper functions to make it easier to create

well-formatted advertising packets, as well as to use the Scan Response option, which is an optional secondary

advertising packet that can be requested by a Central device. (This gives you another 27 bytes of advertising data, but

isn't sent out automatically like the main advertising packet.).

This two advertising packets are accessible via the parent AdafruitBluefruit class, calling ' Bluefruit.Advertising.* ' and

' Bluefruit.ScanResponse.* ' from your user sketches.

For examples of using these helper classes, see any of the examples later on in this guide, since all devices will

advertise as part of the startup process.

API

The BLEAdvertisingData class has the following public API:

The Bluefruit nRF52 Feather codebase is in an early BETA stage and is undergoing active development

based on customer feedback and testing. As such, the class documentation here is incomplete, and you

should consult the Github repo for the latest code and API developments: https://goo.gl/LdEx62