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
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Note
See the Application overview 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, that is implied by the CONFIG_DESKTOP_BT_PERIPHERAL option. The Battery Service is required for the HID peripheral device. For more information about the Bluetooth configuration in the nRF Desktop, see the nRF Desktop: Bluetooth documentation.
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).