====== Heart Rate Monitor ======

Sample Code:

  * https://developer.apple.com/library/content/samplecode/HeartRateMonitor/Introduction/Intro.html
  * https://github.com/timburks/iOSHeartRateMonitor
  * https://www.pubnub.com/blog/2015-09-30-tutorial-realtime-ios-heart-rate-monitor-dashboard/
  * [[https://groups.google.com/forum/#!topic/strava-api/ZmnDisDab4s|Upload GPX with Heartrate]]


WahooDemoV2

  * [[http://api.wahoofitness.com/|Wahoo Fitness API- Main Page]]