This example uses the GATT Battery Service (BAS) to monitor the battery level of connected peers. When run, the monitor scans for compatible peers advertising the Battery service. The monitor will initiate a GATT connection and subscribe to notification updates about the peer's battery level.
The bt-le-battery-monitor relies on the fuchsia.bluetooth.le.Central capability to scan and connect to remote peers.
Add the example to your Fuchsia configuration. Note, because the component is eagerly started, make sure to include the package in the cached set of packages. For example, for the workstation configuration, add the bt-le-battery-monitor to the legacy_cache_package_labels.
Include the core_shard in your target product configuration. For example, if using fx set, add:
--args 'core_realm_shards += ["//src/connectivity/bluetooth/examples/bt-le-battery-monitor:core-shard"]'
The example bt-le-battery-monitor is implemented as a Component Framework v2 component. This component is eagerly started on device boot.