Android app to collect bunch of stat from devices
writes to file
Internal storage/Android/data/com.example.brightstar/files/test.txt
in format
timestamp,brightness,illuminance
get screen brightness adb shell settings get system screen_brightness
set screen brightness adb shell settings put system screen_brightness 100
set screen brightness mode adb shell settings put system screen_brightness_mode 0
get screen brightness mode adb shell settings get system screen_brightness_mode