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Dutt Research Group's Samsung Gear Fit 2 Pro Bluetooth Enabled PPG Logger

Demo

This app is a single view UI application generated by Tizen UI builder. After installation, you will see an icon named "DRG BTPPG" in your app list:

To start an 1 minute data acquisition, click "Start/Stop." All available sensor data will be updated at 10 Hz refresh rate. The fields from top to bottom are:

(Note: For more information, please visit Tizen Device Sensors)

  1. Heart rate (BPM)
  2. Received intensity of PPG green LED (Min. value = 0, Max. value = 1081216)
  3. Accelerometer (X) (in m/s^2)
  4. Accelerometer (Y) (in m/s^2)
  5. Accelerometer (Z) (in m/s^2)
  6. Gyroscope (X) (in Degrees/s (°/s))
  7. Gyroscope (Y) (in Degrees/s (°/s))
  8. Gyroscope (Z) (in Degrees/s (°/s))
  9. Barometer, i.e. Air pressure (hPa (hectopascals))
  10. Gravity (X) (in m/s^2)
  11. Gravity (Y) (in m/s^2)
  12. Gravity (Z) (in m/s^2))

Definition of axes

For heart rate sensor:

  • The Heart Rate Monitor (HRM) LED green sensor measures the amount of green light that is reflected back from a person's blood vessel.

For accelerometer:

For gyroscope:

Quick Start

Tizen Studio

Installation on Arch Linux

FontConfig and Harfbuzz workaround

Build Project

Sign Your Own App

Building DRG BTPPG

Environment:

  1. This project is based on Tizen 2.3.1 (the version we've got on SGF2 Model R-365)
  2. Build configuration: Use LLVM-4.0 with GCC-4.6 shipped with Tizen Studio Build configuration

Installation to Samsung Gear Fit 2

  1. Switch on debug mode on Gear Fit 2 via Settings -> Gear Info -> Debugging
  2. Connect SGF2 via device manager device manager
  3. Run as "Tizen native application"

Roadmap

  1. v0.1: Basic functionality of data acquisition from sensor
  2. v0.2: Use SPP (serial port protocol) to transmit / receive data with a host computer or mobile app via Bluetooth 4.0 (dual-mode)
  3. v0.3: Enable Bluetooth LE transmisstion (BT 4.2)
  4. v0.4: Add configuration interface to adjust samping rate and select specific axes of data to be recorded
  5. TBD: Hook up with DRG lifelogger

License

Copyright 2018 Michael (Tao-Yi) Lee

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Contact

Pleae feel free to contact Michael (Tao-Yi) Lee (taoyil AT UCI, pleaes figure out the right top level domain of my university's email address) for any questions about this Tizen App.

Acknowledgement

The author would like to thank Arman and Iman for their source code for sensor data acquisition.