Naturally Processed Meals

    heartrate

    0.1.3 • Public • Published

    heartrate NPM version Dependency Status

    A Node.js Stream for getting heart rate from Bluetooth Low Energy devices. This is experimental and tested only with the Wahoo Blue HR device.

    Usage and Installation

    npm install --save heartrate
    var BleHR = require('heartrate');
    var stream = new BleHR('foo12345bar1234fo12345bar1234123');
    stream.pipe(process.stdout);

    API

    new BleHR(UUID)

    Parameter: UUID is string with the UUID. Returns: BleHR instance

    or new BleHR(options)

    Parameter: option is object of options. Returns: BleHR instance

    Defaults:

    {
      "log": false,
      "uuid": undefined
    }

    uuid is required

    new BleHR(UUID).getBodyLocation([callback(error, location)])

    Parameter: Function callback with the location in string format Returns: BleHR instance (it self)

    Get string representation of body sensor location. E.g. Chest, Ear Lobe. Either get data by using the callback or listening to the bodyLocation event.

    Example:

    var stream = new BleHR('foo12345bar1234fo12345bar1234123');
    stream.getBodyLocation().on('bodyLocation', function (error, location) {
      console.log("Location:", location); // Chest
    });

    new BleHR(UUID).getBatteryLevel([callback(error, level)])

    Parameter: Function callback with the current battery level in percentage Returns: BleHR instance (it self)

    Get battery level of device in percentage. Interval 0 - 100. Either get data by using the callback or listening to the batteryLevel event.

    Example:

    var stream = new BleHR('foo12345bar1234fo12345bar1234123');
    stream.getBatteryLevel(function (err, level) {
      console.log("BatteryLevel:", level); // BatteryLevel: 47
    });

    BleHR.list() (static)

    Returns: EventEmitter instance

    Emits all discovered devices on data event.

    Example:

    BleHR.list().on('data', function (device) {
      console.log(device.uuid);
    });

    BleHR.list.print() (static)

    Sugar for printing all devices found.

    Example:

    BleHR.list.print();
    // UUID: foo12345bar1234fo12345bar1234123
    //   Local Name        = Wahoo HRM v2.1
    //   Service Data      =
    //   Service UUIDs     = 180d

    License

    MIT License

    Install

    npm i heartrate

    DownloadsWeekly Downloads

    0

    Version

    0.1.3

    License

    MIT

    Last publish

    Collaborators

    • mikaelb