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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12
votes
2answers
1k 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?
11
votes
3answers
2k 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 ...
9
votes
2answers
4k views

What does the pressure sensor measure?

What kind of pressure does it measure? Air pressure? Finger pressure on the touchscreen?
8
votes
3answers
3k views

What does the ambient light sensor look like?

Naive question, but when I check the specs of a phone, one website says phone has feature X, the other says it does not have this feature. Here I am interested in the ambient light sensor. What does ...
8
votes
3answers
869 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 ...
4
votes
2answers
4k views

What is a “Hall” sensor, and what is it used for?

On Google's specs page for the new Nexus 5, the Nexus 5's built-in sensors are listed as: Sensors GPS Gyroscope Accelerometer Compass Proximity/Ambient Light Pressure Hall ...
3
votes
1answer
2k 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, ...
3
votes
1answer
8k 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
777 views

Which hardware sensors are supported by Android? [closed]

Which hardware sensors are supported by Android? Are there any imaginable sensors that may be planned to be supported in the future? For every sensor: How is the sensor useful? Which devices ...
2
votes
1answer
812 views

Test Accelerometer alignment?

Is there any app around that lets an Android user see the "flat" on the accelerometer? The reason I'm looking for such is because I recently got the Need For Speed Shift game. And I notice that the ...
2
votes
1answer
462 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 ...
2
votes
1answer
80 views

What does the error message “Light old sensor_state 0, new sensor_state : 128 en : 1” in logcat mean?

I have my Galaxy S4 connected with my PC and ran the "Building My First App" tutorial from http://developer.android.com/ . There were no problems, but I noticed many messages about the LightSensor in ...
2
votes
0answers
136 views

Physical placement of specific sensors in Google Nexus 7 (2012)

I am working on a project that requires me to know where specific sensors are physically located inside the device. I can estimate the location of NFC and light sensor (of course) but what about other ...
2
votes
0answers
183 views

Emulate touch scrolling by rotating device - tilt to scroll

Does anyone know of an app that emulates a swipe touch or slow scrolling action by simply rotating the device? presumably by using the accelerometer sensor. This could be used for example in a pdf ...
1
vote
2answers
160 views

What information is available to an app from the magnetometer?

I would like to know what other functionality is provided by the magnetometer inside android devices besides allowing applications to display a compass. Can an app do anything else with it besides ...
1
vote
2answers
525 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) ...
1
vote
2answers
694 views

Can you damage the proximity sensor if you keep it always on?

If you keep the proximity sensor always on (like for applications that turn on the screen when you tap the sensor a few times) is there a risk to damage it? I'm assuming that the sensor works only in ...
1
vote
1answer
1k views

The meaning of 3 axis values of magnetometer [closed]

Could someone explain to me the meaning of 3 axis x, y & z of Magnetometer
1
vote
1answer
889 views

How can I calibrate the tilting sensor on Android

I have some Android mobile which seems to be a Samsung, or at least a clone thereof. I got it form my wife as a present, so I don't really know which one. Under the batterypack it says "Model: 19502" ...
1
vote
1answer
478 views

Is there any android support for bicycle sensors?

I've seen some Bluetooth Smart (4.0) technology for tracking tire rotation rate (bike speed), peddle rotation rate (cadence) and even heart rate monitors. Some heart rate monitors are supported by ...
1
vote
2answers
137 views

Turning on Android device with motion detector (external device?)

Problem I'm looking for a motion detector that can be set up to wake a rooted Android (4.3) tablet and turn the screen on when someone passes by it in a radius of maybe 2-3m. Ideas I'm definitely ...
1
vote
0answers
925 views

Auto rotation, proximity sensor issues in Xperia Arc S after updating to ICS

My auto-rotation and sensors was working fine in my Xperia Arc S with Gingerbread, but when I updated it to Ice Cream Sandwich via Sony PC Companion, now the auto-rotation and some sensors are not ...
0
votes
1answer
438 views

Accelerometer on Moto G is bad from factory?

I got a Motorola Moto G a few weeks ago and unfortunately it came with what I suspect is a failing accelerometer. I say that because when I open any level (bubble) application it reads random numbers ...
0
votes
1answer
154 views

Is it possible to intercept and override sensor events in Android?

I want to intercept sensor events in Android and override (fix) transmitted data. Is it possible? The solution should work for all applications using that sensor. UPDATE I need to override ...
0
votes
1answer
684 views

How would one use the Android accelerometer to measure one's mass? [closed]

Pretty much what the title states. The Android CDD says of the Accelerometer MUST be able to deliver events at 50 Hz or greater MUST comply with the Android sensor coordinate system as ...
0
votes
2answers
576 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 ...
0
votes
1answer
60 views

accessing light sensor raw data

Is it possible to access light sensor raw data logs from an Android device (in my case, an LG Optimus)? If so, how is this possible and what format would the log be in?
0
votes
1answer
2k views

My phone is giving inaccurate readings of battery level

I have a Huawei u8160 running Cyanogenmod 7.2 . my phone is giving inaccurate readings of the battery charge level (e.g one day morning it was 33 that day evening it became 34 without touching the ...
0
votes
1answer
98 views

Is there a way to estimate building movements? [closed]

I wish to determine if, or how much, movement there is of the building in which I'm currently living. Is there any way for me to do this? Is it even possible at all based on phone hardware?
0
votes
0answers
12 views

Source of sensor timestamp

I would like to know, how the timestamps are added to the sensor data (accelerometer, gyroscope). What's the reference time (MCU-Time, Sensor-Clock). When the datas are timestamped (after reception ...
0
votes
0answers
15 views

Is it possible to infer ambient temperature from battery temperature?

A few questions here and at Stack Overflow make battery temperature available for the inquiring minds: Get temperature of battery on Android How does Android obtain battery temperature Yet, I'm ...
0
votes
0answers
24 views

How to find sensor hardware specs?

I need a list of all magnetic field sensors, used in Android devices. Where can I find such a thing? Specs is not so important, I mean, I think I can just search for the name of the hardware and find ...
0
votes
0answers
19 views

Unable to tilt in Temple Run in IdeaPad K1 3.2

I'm using Lenovo Ideapad K1 tablet-android version being 3.2. I'm UNABLE TO TILT while collecting coins in Temple Run. Is it because Android 3.2 doesn't support tilting or is there a problem with my ...
0
votes
2answers
64 views

why my Gyroscope/accelerometer work only in portrait mode?

I have a Galaxy S Advance Gt I1970, running under Android 4.1.2 (official update). the problem is when i try to play games that require the phone sensors, for example Angry Birds Go or Frisbee ...
0
votes
0answers
70 views

How can I find out all sensor my smartphone has?

Is there a way to analyse, which characteristics my smartphone is capable of? I found an app Z-Device Test, that claims to be able to analyse these characteristics: the GPS signal, camera, ...
0
votes
0answers
38 views

Play phone game with game being displayed on computer screen

I want to play InfiniteFlight on my computer. But it's only available for phones (and maybe tablets, I'm not sure) - I purchased InfiniteFlight on my phone, and I just had an idea - What if we can ...
0
votes
0answers
906 views

Accelerometer problem in Galaxy S2

In my Galaxy S2 I think that the accelerometer is not all right. When I play games like Asphalt 7 or Temple Run, the character in Temple Run and the Cars in Asphalt 7 always turn left even when my ...
0
votes
0answers
241 views

Does anyone has magnetometer working on Samgung Galaxy Tab 10.1?

I am comparing the behavior of "Compass" program from Smart Tools and the "natural" old-fashion physical compass and see the former is not working correctly. Is this a manufacturing defect or by ...