The Bluetooth protocol (datasheet section 3.6) does define some write characteristics that can be used to push information to the device. These include but are not limited to the following:

  • Operating Mode
  • Analysis Set
  • Raw Data
  • Activity Data Interval
  • HR Data Interval
  • HR Sampling Interval
  • HR Sampling Duration
  • HR Max Seeking Duration
  • Enable Workout Detection
  • Reset Accumulated Data
  • Age
  • Weight
  • Height
  • GenderĀ 
  • Turn Off Screen During Workout