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
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?
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 ...
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 ...
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?
9
votes
3answers
4k 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 ...
7
votes
3answers
18k 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 ...
5
votes
1answer
2k 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 ...
5
votes
5answers
9k 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 ...
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, ...
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 ...
3
votes
1answer
57k 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" ...
3
votes
1answer
310 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 ...
2
votes
1answer
1k 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
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 ...
2
votes
2answers
1k 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 ...
2
votes
1answer
187 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
41 views

Using PC to control Android (ex : using mouse or keyboard to tilt, rotate, emulate gyroscope, etc)

Is there any way to input fake sensor data from PC into your android phone (not the opposite)? Like using WASD from PC to make your android phone thinking they are being tilted, rotated, etc even ...
2
votes
1answer
667 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 ...
1
vote
2answers
188 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
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) ...
1
vote
1answer
333 views

Why is the maximum value of the light sensor from my phone stuck at 85745.0lx?

My lightsensor of my Samsung Galaxy S3 doesn't return good values. I tested it in different places, p.E. outside in the sun or indoor with and without light. The value outside was a bit confusing ...
1
vote
1answer
6k 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 ...
1
vote
1answer
3k 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
658 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
0answers
46 views

How can I set the Accelerometer Sensor Range?

The Accelerometer Sensor is set to a Range of 2 - 4 g on most devices. There is no option to turn it up to 8 or 16 G, which my sensor and most others are capable of. I found some information but can't ...
1
vote
0answers
289 views

Sensors Start N Stop Working

I own a Galaxy S4 I9505 device. Earlier I was running the stock based Custom ROM (Imperium 16.1, Android 4.4.2) on my S4 and there was no problem at all. That ROM gave me supreme performance, ...
1
vote
1answer
88 views

Where is the Light Sensor of Google Glass?

The GDK document says that light sensor is available on Google Glass. But the document has no information about where the sensor locates on the Glass. It seems that there are two possible positions: ...
1
vote
0answers
65 views

How to get “Peak.ar” to work on Samsung Galaxy S3 Mini

I am using a Samsung Galaxy S3 Mini and try to get Peak.ar working correctly. However, it seems to me that none of the involved sensors (gyro, accelerometer and compass I guess?) is sensitive enough ...
1
vote
0answers
1k 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
3k 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
2answers
873 views

Difference between Accelerometer, Orientation sensors used in Android devices

Android phones have sensors. I heard about following sensors but there is need to identify difference (or different use) between following terms: Accelerometer Orientation Auto-Rotation G-sensor ...
0
votes
1answer
844 views

How clean master measure device temperature

Clean master app latest version added the feature device cooler when CPU is overheating. I want to know that how this app measure the temperature of device if there is no hardware support (sensor) is ...
0
votes
1answer
313 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
1k 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
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 ...
0
votes
2answers
187 views

Z axis nexus 4 incorrect. Software or hardware?

I noticed that before I upgraded to Lollipop my z axis of the lge accelerometer of the nexus 4 used to be 10.2 m/s^2 (which was wrong but closer to accurate). After I upgraded it is now 10.6. Is this ...
0
votes
1answer
1k views

TI SensorTag firmware Update through OAD(over-the air ) in android

Help me to upload firmware through android app in nexus 7 ,as I have build my sensor tag project through IAR embedded workbench,but I didnt find any app for OAD firmware update in android, when I am ...
0
votes
1answer
7k views

How to calibrate magnetic sensors using Cyanogenmod?

I am using a Samsung Galaxy S4 mini with Cyanogenmod (11) and want to calibrate the compass / magnetic sensors. With the stock rom this was possible by "dialing" *#0*#. This is however not ...
0
votes
2answers
153 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
102 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
10 views

Can I fake phone sensors data?

Context : Most of my LG G3 sensors are broken following a water damage. The main problem is the broken auto-rotation sensor that prevent me of taking photos in landscape mode. I known some ...
0
votes
1answer
22 views

Can my Android phone detect when it is in the shade?

Is there any way I can get my Android phone to tell me when I am in the shade? These days the sun is pretty damaging for my skin and was curious about how I could measure this. Maybe if I put it in ...
0
votes
1answer
58 views

Google Sky Maps does not follow pointing direction. How can the sensors be calibrated?

I have a new Lollipop device (Moto G 2. Gen) and wanted to use Google Skymaps. This worked like a charm on my old device. Now the display is not following the movements of the phone in the right way. ...
0
votes
0answers
17 views

Sensors values change / jacl

Is there any way to hack, overwrite x,y,z and other values of sensors? I mean I want to write a bot to sensor based games to test them. But I cannot change the source of games or stock api of the ...
0
votes
0answers
32 views

Devices names from android system

for several days I'm trying to find devices ( accelerometer, g-sensor etc ) names and placement of theirs drivers? I'm new to android and linux and can't figure out where can I find this info. I was ...
0
votes
0answers
25 views

What are the sensors required for any fitness app to track my activities?

Can any an Android mobile phone track my fitness/activities regardless of the sensors in the mobile phone? If not, what sensors do I need to look for before I buy a good mobile phone to track my ...
0
votes
0answers
41 views

Get the list of applications using a sensor in android

I want to get: The list of applications or pids using a particular sensor in android. Or Sensors used by any particular application. Is it possible?
0
votes
1answer
160 views

Storing & getting the device orientation (yaw, pitch, roll) when taking a photo

I want to take a photo and use the stored GPS coordinates and the orientation of the phone to do some calculations. How can I access that information? Alternatively if there is an API to do that I ...
0
votes
0answers
23 views

which sensor is capable of tracking the emr

I read about applications like tawkon and too close recently. I am aware that they keep a watch to the mobile's radiation level and do something when the radiation level mounts. I am impressed with ...
0
votes
1answer
2k views

Light sensor not working after Lollipop update

After upgrading my Nexus 5 to Android OS version 5.0 Lollipop, an issue has occurred: light sensor doesn't work properly when I am trying to call someone. Screen always stays on and I am not able to ...