Physics Toolbox Light Meter
Test the brightness/intensity of light sources using your phone light sensor. Use the light sensor to investigate the inverse-square law from a point source of light, true magnitudes of light bulbs (as our eyes do not directly perceive comparative brightness accurately due to the constriction and retraction of the pupil), solar intensity variations dependent upon weather, and the ability of objects and surfaces to absorb, reflect, and/or transmit light.
android.permissions explained
WRITE_EXTERNAL_STORAGE:
A csv file is created and modified on the phone's internal memory.
If you have any questions, comments, or would like to see modifications/updates, please email me at [email protected]
Category : Tools
Reviews (11)
Best app.
Provides easy comparisons of light intensity. Pretty much exactly as described.
This is very easy for use app with clean UI without obstructive adds. It will measure and record values from front light sensor of your phone. Also, there is option for result saving. Accuracy greatly depends of sensor quality of your device and therefore don't blame authors. They did great job. HIGHLY RECOMMENDED.
Works for a while then the value tails off.
Needed for a project, thank you.
It has only two values its either full or zero
Very good application
cool tools. Really helps
4,5 The option for refresh rate is not very helpfull as all of them seem to be too close together and bassically you have very fast, slightly faster, a bit slightly faster and faster just one bit more. Great tool tough, good sensor readings and very well done graph with auto scaling and stuff. Good job!
but icon is very ugly on s4 . seems cut off
Checked against calibrated light meter so far out its unfunny waste of time