GATT Battery Service module
Use the GATT Battery Service module to enable and define the GATT Battery Service, and notify the subscribers about the battery level changes.
Module events
Source Module |
Input Event |
This Module |
Output Event |
Sink Module |
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Note
See the Overview: Firmware architecture for more information about the event-based communication in the nRF Desktop application and about how to read this table.
Configuration
The module is enabled with the CONFIG_DESKTOP_BAS_ENABLE option.
The option is selected by CONFIG_DESKTOP_HID_PERIPHERAL – Battery Service is required for the HID peripheral device.
Implementation details
The module uses BT_GATT_SERVICE_DEFINE to define the GATT Service.
On battery_level_event, the module updates the battery level and notifies the subscribers.
More detailed information about GATT are available in the Zephyr documentation: Generic Attribute Profile (GATT).