Use this tag for questions related to issues with sensors equipped in devices, such as: Ambient light (ALS), Accelerometer, Back-illuminated sensor (Backside Illumination, BSI or BI), etc. Note that 'compass', 'gps', 'gyroscope', and 'proximity-sensor' have their own tags.

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4
votes
2answers
4k views

How does an android compass application work?

I recently installed a Compass app on my phone (it's a HTC Wildfire S if it matters) and I'm curious as how it works. Found some answers online that the phone's hardware has a digital compass in it, ...
12
votes
5answers
4k views

How does in-pocket detection work?

My Droid Bionic has an option on the Display Settings page "In-Pocket detection: locks your device automatically when inserted in pocket" How does the phone sense that it's in your pocket? I'm ...
1
vote
2answers
1k views

Can a phone without a gyroscope measure angles sufficiently?

It seems that a gyroscope sensor is currently not so common amongst Android devices. But does an accelerometer (in conjunction with the compass?) provide enough accuracy to measure angles (tilt, yaw) ...
3
votes
1answer
9k views

Does Accelerometer Sensor work on my Samsung Galaxy S2?

I have Samsung Galaxy S2 and i'm experiencing with an issue that is annoying me very much. When I do \auto rotate\ , the rotation happens after 4-5 seconds. I've done the calibrations and all that ...
2
votes
1answer
668 views

Does the Android specification include minimum sensor parameters?

Android apps can access sensor data. How do I know how accurate the sensor readings are? Is there a universal standard that specifies operational parameters of a sensor? E.g., a temperature sensor ...
11
votes
3answers
1k views

Automatic adjust brightness through out the day

It does not seem that automatic brightness works well on my Nexus S. Basically, I want my phone's brightness to adjust throughout the day. Either that, or something that automatically adjusts ...
12
votes
2answers
2k views

How does the automatic brightness settings work?

Maybe a dumb question, but I couldn't find any official documentation to confirm. Does it use the light sensor? Do most devices support it?
0
votes
2answers
619 views

Disabling the nexus-one proximity/position sensor?

I think my nexus one is trying to be too smart. For each incoming call the phone stops ringing as soon as I pick it up. That's perfectly fine as long as the phone is sitting on my desk, but when I'm ...
10
votes
2answers
6k views

What does the pressure sensor measure?

What kind of pressure does it measure? Air pressure? Finger pressure on the touchscreen?