Overview

What is Sensor Extension?

Sensor Extension allows you to use sensors which are not supported by Google Android. It provides Meaningful data from sensors in the Samsung Device.

Sensor Extension SDK supports the feature below.

  • Heart Rate Monitor(HRM) Sensor IR/RED/GREEN/BLUE Signal

  • Ultraviolet (UV) Index

According to further updates, the supported sensor will also be added.

HRM Sensor Signal

The HRM Sensor is located on the rear panel of the phone. If you place your finger, measurement starts.

The photoplethysmogram (PPG) signal means the amount back of IR / RED / Green /Blue light that reflected from blood vessel in the finger.

Figure 1: HRM sensor

UltraViolet Index

The Ultra Violet feature provides UV Index from the outdoor environment.

Figure 2: UV sensor

To measure the ultraviolet rays, the device uses the sensor located at the rear side of the phone.
The sensor needs to be placed directly under the sun for 5 seconds in order to measure the ultraviolet rays.
UV index values have 12 levels.

UV Index Rating Description
<2 Low No danger to the average person
3 ~ 5 Moderate Little risk of harm from unprotected sun exposure
6 ~ 7 High High risk of harm from unprotected sun exposure
8 ~ 10 Very High Very high risk of harm from unprotected sun exposure
11+ Extreme Extreme risk of harm from unprotected sun exposure

Restrictions

Sensor Extension SDK has the following restrictions:

  • HRM Sensor IR/RED Signal

    • Devices with Android 5.0 (Lollipop API level 21) or higher is required.
    • Galaxy S5 and Galaxy S5mini are excluded.
    • Only supported by Samsung device with HRM sensor.
  • HRM Sensor GREEN/BLUE Signal

    • Devices with Android 8.0 (Oreo API level 26) or higher is required.
    • Supported from device where the sensor is loaded. Ex: Galaxy S9.
    • Only supported by Samsung device with HRM sensor.
  • Ultraviolet Index

    • Devices with Android 4.4 (Kit Kat API level 19) or higher is required.
    • Only supported by Galaxy Note4.
    • Only supported by Samsung device with Ultraviolet sensor.