Configure Polar

To use this package, import it into your app together with the carp_mobile_sensing package:

import 'package:carp_core/carp_core.dart';
import 'package:carp_mobile_sensing/carp_mobile_sensing.dart';
import 'package:carp_polar_package/carp_polar_package.dart';

Collection of Polar measures can be added to a study protocol like this.

// Create a study protocol
var protocol = StudyProtocol(
  ownerId: 'owner@dtu.dk',
  name: 'Polar Sensing Example',
);

// Define which devices are used for data collection - both phone and polar device
// and add them to the protocol.
var phone = Smartphone();
var polar = PolarDevice(roleName: 'hr-sensor');

protocol
  ..addPrimaryDevice(phone)
  ..addConnectedDevice(polar, phone);

// Add a background task that immediately starts collecting HR and ECG data
// from the Polar device.
protocol.addTaskControl(
  ImmediateTrigger(),
  BackgroundTask(
    measures: [
      Measure(type: PolarSamplingPackage.HR),
      Measure(type: PolarSamplingPackage.ECG),
    ],
  ),
  polar,
);

Before executing a study with an Polar measure, register this package in the SamplingPackageRegistry.

SamplingPackageRegistry().register(PolarSamplingPackage());

Use the PolarDeviceManager to connect to the device using the connect method. The connect method uses the polarIdentifier to identify the Polar device, which is printed on the sensor/device - typically on the form “B34B4B56”. On iOS, a UUID is used. You should set the id before trying to connect.