.. _nrf_desktop_bas: GATT Battery Service module ########################### .. contents:: :local: :depth: 2 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 ************* .. include:: ../../../../../../../applications/nrf_desktop/doc/event_propagation.rst :start-after: table_bas_start :end-before: table_bas_end .. note:: |nrf_desktop_module_event_note| Configuration ************* The module is enabled with the :ref:`CONFIG_DESKTOP_BAS_ENABLE ` option, that is implied by the :ref:`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 :ref:`nrf_desktop_bluetooth_guide` documentation. Implementation details ********************** The module uses :c:macro:`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: :ref:`zephyr:bt_gatt`.