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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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, 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 Bluetooth in nRF Desktop 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).