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
5k 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
4answers
35k 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 (...
10
votes
2answers
7k 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 ...
9
votes
2answers
168 views

Why doesn't Android compass react to magnet?

I downloaded Compass program for Android and tried to bring strong magnet close to it. The pointed remained stable, as if there was no magnet nearby. Here is the video proof on YouTube. I have ...
6
votes
6answers
20k 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 ...
5
votes
1answer
3k 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 ...
4
votes
2answers
7k 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, ...
4
votes
0answers
42 views

Disable android Sensor only for Call

I'm using device GT i 9082, Android 6 AOSP ROM. My phone has a problem. While answering/dialing call, putting phone near to ear the screen goes off - this works fine but when taking phone off the ear ...
3
votes
1answer
10k 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
122k views

How can I calibrate the tilting sensor on Android

I have an Android mobile which seems to be of Samsung, or at least a clone thereof. I got it for my wife as a present, so I don't really know which one. Under the battery pack it says "Model: 19502" ...
3
votes
1answer
42 views

Light sensor values differes from device to device - are the readings reliable?

I have launched an onboard sensors reading application on 2 phones: HTC M8 (Android 6) and Motorola Moto G (Android 5). Those phones lays on my desk one just next to the other. And light sensor's ...
3
votes
1answer
52 views

How to prevent tablet working when laid flat?

My son has the bad habit of putting his tablet flat on the floor (even though it has a hard-shell case with built-in stand) and leaning over it, which is an ergonomic nightmare. No matter how much I ...
3
votes
1answer
381 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
741 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
4k 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
2
votes
1answer
237 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
29 views

How can a camera takes 8MP pictures in a SoC with 5MP support only?

In general specifications of Mediatek MT6572, it supports up to 5MP camera, but this product Yezz Andy A4M is supposed to support 8MP camera which is theorically not possible unless the camera is ...
2
votes
0answers
92 views

Compass only working in GPS status app, not in any other apps

On my Nexus 5 (Android 6.0) the compass is working fine in the well known GPS Status & Toolbox app, but not in any other app like Google Sky Map. To debug the problem, I installed a dedicated ...
2
votes
0answers
214 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
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 ...
2
votes
0answers
302 views

How can I map tilt to a physical keyboard?

How can I map tilt/accelerometer functions to a physical bluetooth/USB keyboard to play the games that support it?
2
votes
1answer
790 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
191 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
1answer
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 ...
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
2answers
3k 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 &...
1
vote
1answer
555 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
2answers
308 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?
1
vote
1answer
8k 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
714 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
67 views

apps fail to access orientation & magnetic sensors

I've just started using a Doogee Nova Y100X Android-based phone (it's android 5.0). It seems that my apps can only access some of the phone's sensors: accelerometer seems to work, proximity and ...
1
vote
0answers
23 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 ...
1
vote
0answers
119 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
878 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
145 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
70 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
1answer
2k 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 ...
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 ...
1
vote
2answers
71 views

Every Sensor Stopped Working

Recently I have discovered that literally all sensors on my Note 4 suddenly stopped working. This include the proximity sensor as well as the gyroscope sensor and GPS, etc.: Screenshot (click to ...
0
votes
1answer
78 views

List body sensors available on Android devices

How can I list body sensors available on Android devices?
0
votes
1answer
4k 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
1k 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
407 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
2k 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
634 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
2k 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. ...