Use onConnectionEvent for connection details that do not fit the compact DeviceStatus enum.

<BTProvider
  {...providerProps}
  onConnectionEvent={(event) => {
    if (event.kind === "history-download") {
      updateHistoryProgress(event.progress?.current, event.progress?.total);
    }
    if (event.kind === "battery") {
      updateBattery(event.batteryLevel);
    }
  }}
/>

kind is pairing, bonded, history-download, or battery.

Field	Meaning
`deviceData`	The peripheral associated with the event.
`pairingCodeRequired`	Present on pairing events when the platform expects user confirmation or a code.
`progress.current`	Number of history items reported so far.
`progress.total`	Optional total from the device protocol. Do not calculate a percentage when it is absent.
`batteryLevel`	Battery percentage when the device exposes the standard Battery Service.

The callback runs alongside the SDK runtime event stream used by PairingFlow and Bluetooth hooks. Do not interpret a bonded event as a completed health measurement; readings arrive through onResult.

See PairingFlow for a reusable pairing UI.