[Q] Barometer Sensor - Xoom Q&A, Help & Troubleshooting

Hey..
I think i have a Problem with my Xoom.
I installed the App Barometer HD from the Market. I start it and the pressure was always from 967-972 hPa.. but outside it has a pressure to 1020hPa (value of my Weatherstation)?
I think my Sensor was not really working? (Live in Switzerland)

deadlineone said:
Hey..
I think i have a Problem with my Xoom.
I installed the App Barometer HD from the Market. I start it and the pressure was always from 967-972 hPa.. but outside it has a pressure to 1020hPa (value of my Weatherstation)?
I think my Sensor was not really working? (Live in Switzerland)
Click to expand...
Click to collapse
Mine works great. Did you try Weatherbug? It is the only other app i know that uses the barometer.

keitht said:
Mine works great. Did you try Weatherbug? It is the only other app i know that uses the barometer.
Click to expand...
Click to collapse
Thanks.. But i found another app that show me the Barometer "Sensor List" it's also show me the same value
One time i tried the barometer app into a tunnel, i sitting in my train and then my value go over 970-990hPa, after then i think the sensor was working, but no that's crazy!

deadlineone said:
Thanks.. But i found another app that show me the Barometer "Sensor List" it's also show me the same value
One time i tried the barometer app into a tunnel, i sitting in my train and then my value go over 970-990hPa, after then i think the sensor was working, but no that's crazy!
Click to expand...
Click to collapse
I think your barometer is working properly it's just that your station compensates for barometric pressure, perhaps already at sea level 0m. while your Xoom does this work automatically and then gives you the values ​​of pressure that is lower than your actual altitude.
To verify this you can go to sea level on a clear day and see if you find the values ​​of pressure around 1013hPa.

Related

App to calibrate the orientation sensors?

Mine seems to be really sensitive so that the screen rotates even if I tilt the phone a small amount. Is there any way to fine-tune it?
--
Sent from my HTC EVO 4G using Tapatalk Pro.
Wondering this also since I noticed there is no calibration for it in CM6.
Don't know about on CM6 but on other roms, go to Settings > Display > G-Sensor calibration.
Anyway to do this on non-rooted phones? Ever since I upgraded to Froyo it seems to rotate if I tilt it even just slightly off it's axis
Those directions were for rooted and non rooted phones...
Greenfieldan said:
Anyway to do this on non-rooted phones? Ever since I upgraded to Froyo it seems to rotate if I tilt it even just slightly off it's axis
Click to expand...
Click to collapse
Turn off garbage rotation with Switchpro
Anyone gotten a reply from Cyanogen? I messaged him on Twitter, but he never responded.
If you download, GPS Status from the market and in settings under " Help and release notes " it says this...........
My compass points to the wrong direction or I'm asked to calibrate my compass. What should I do?
Your phone contains a digital compass which measures the magnetic field's strength in three direction with three separate sensors. The orientation of your phone is calculated from these values. Unfortunately the sensitivity of the sensors are a little different. To correctly calculate your orientation your phone must measure first these differences. This is done during the calibration process. To calibrate your phone, simply find a space where no external magnetic field is present (preferable outside of buildings) and rotate your phone 1-2 times on EACH of its three axes (Swinging your phone in big 8s in all direction will also do, but it' less scientifically correct ). If you feel that your compass has become inaccurate you can repeat this procedure.
But i dunno if it works or not..
BAleR said:
If you download, GPS Status from the market and in settings under " Help and release notes " it says this...........
My compass points to the wrong direction or I'm asked to calibrate my compass. What should I do?
Your phone contains a digital compass which measures the magnetic field's strength in three direction with three separate sensors. The orientation of your phone is calculated from these values. Unfortunately the sensitivity of the sensors are a little different. To correctly calculate your orientation your phone must measure first these differences. This is done during the calibration process. To calibrate your phone, simply find a space where no external magnetic field is present (preferable outside of buildings) and rotate your phone 1-2 times on EACH of its three axes (Swinging your phone in big 8s in all direction will also do, but it' less scientifically correct ). If you feel that your compass has become inaccurate you can repeat this procedure.
But i dunno if it works or not..
Click to expand...
Click to collapse
That just calibrates the compass.

Screen dimming app.

If any of you other users out there feel that the whites on this thing are too awesome for super late at night like I do, I found a app when searching for a f.lux type alternative for android. I have been using this app to help ease the stress on my eye late at night. I dont know about the techical side of what it does, or any of the jargon involved, but it applies a filter of sorts to dim the screen further than what the phone allows. I been using it a lot lately and figure I would share with you guys. If anyone has any recommendations for other similar apps, please share.
Tl:dr
Screen Filter
https://play.google.com/store/apps/details?id=com.haxor
Sent from my SCH-I535 using Tapatalk 2
enomele said:
If any of you other users out there feel that the whites on this thing are too awesome for super late at night like I do, I found a app when searching for a f.lux type alternative for android. I have been using this app to help ease the stress on my eye late at night. I dont know about the techical side of what it does, or any of the jargon involved, but it applies a filter of sorts to dim the screen further than what the phone allows. I been using it a lot lately and figure I would share with you guys. If anyone has any recommendations for other similar apps, please share.
Tl:dr
Screen Filter
https://play.google.com/store/apps/details?id=com.haxor
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
Or just turn on "Background Color" in Power Saving Settings.
Or if you want the screen brightness itself to be lower than what most ROMs allow, you can use this app called RootDim. It worked amazing on my xoom, not sure if it works on the SGSIII yet..
It requires root though..
yosterwp said:
Or if you want the screen brightness itself to be lower than what most ROMs allow, you can use this app called RootDim. It worked amazing on my xoom, not sure if it works on the SGSIII yet..
It requires root though..
Click to expand...
Click to collapse
Screen filter does the same and doesn't require root. On our AMOLED screens this can save battery.
Also you can turn off those damn capacitive key lights by going to Settings>display>"touch Key light duration"> Always off.
I can confirm that Root dim does work for the SGS3 I use it on my phone.
Current~Samsung Galaxy S3 SynergyRom 1.3 & Imo's Lean Kernel v12 Oc'd @ 1.9ghz
~Acer Iconia A500 Stock
Past~Droid X Gummy ICS 1.2
Lux is an amazing auto brightness app and setting it up for your tastes is incredibly simple.
Go out in the sun and turn brightness up all the way using the app then "link" that setting, go in complete darkness and set it to your taste and link it, then indoor lighting, set it, link it. It then uses just those 3 settings to create a smooth graph of brightness values that are all perfect. You can have as many links as you want but i find the less settings you put in that app the better.
I tried all the suggested ones in here btw.
Sent from my SCH-I535 using xda app-developers app
I've tried and really like Lux (in fact I'm considering purchasing it soon) but I've noticed two issues. First is that sometimes it will not refresh itself and I have to open up the lux dash to get the brightness to change. It doesn't happen often, but it happens often enough to be annoying, and I have it set to automatically.
Also, (and this may simply be an issue with the S3 and not lux itself) but sometimes I will be in a decently lit room and be at 1 lux, while lights out is 0. Not a lot of variance unless it's really bright outside. Have you found anyway to increase the light sensors sensitivity?
noingwhat said:
I've tried and really like Lux (in fact I'm considering purchasing it soon) but I've noticed two issues. First is that sometimes it will not refresh itself and I have to open up the lux dash to get the brightness to change. It doesn't happen often, but it happens often enough to be annoying, and I have it set to automatically.
Also, (and this may simply be an issue with the S3 and not lux itself) but sometimes I will be in a decently lit room and be at 1 lux, while lights out is 0. Not a lot of variance unless it's really bright outside. Have you found anyway to increase the light sensors sensitivity?
Click to expand...
Click to collapse
Try setting it to be always active in the task bar, that prevents it from being killed. Also try setting it to not use raw values for light sensor readings, this gives you a simple scale of 0-10 for readings and total darkness always reads as 0.
Edit: oops reread your post. That's weird that it is reading indoor light at 1. I usually get around 2 or 3. I used to have a screen protector on that covered the light sensor and that put it all over the place. Maybe that is what's causing it?
noingwhat said:
I've tried and really like Lux (in fact I'm considering purchasing it soon) but I've noticed two issues. First is that sometimes it will not refresh itself and I have to open up the lux dash to get the brightness to change. It doesn't happen often, but it happens often enough to be annoying, and I have it set to automatically.
Click to expand...
Click to collapse
I noticed the same behavior with the free version. In my case, the lowest value the HTC Desire S can reach with its default Android auto brightness is in fact about 15%.
In LUX settings you can configure the "0" value to be lower and "bypass" the freeware limitation (you can't configure sub-zero levels in the free version). This will work when you test it in the dashboard, but during regular use the light level never goes below the 15% limit already set by the OS.
What I did was purchase the full version (to get astronomer mode along with all the settings unlocked) so I was able to leave the 0 level at its default 15% but link some light intensity values to sub-zero percentages. Guess what? It works great! Once you go into a very dark room, the display dims as far as you set it to.
Another problem with the free version was that a few times I unlocked the phone outside in full sunlight and LUX did not increase the brightness. It appeared almost completely black because the light level was at about 15-25% (the same level it would be inside a low lit room).
Again, with the full version I did not notice this problem (I've used the free version for 1 day and the paid version for 1 day but running tests in different light levels inside and outside).
It's like the free version is a bit buggy on purpose, and I remember uninstalling LUX free about 2 months because of this; I was thinking that if the free version does not work OK, I shouldn't buy the full version. Apparently this is not the case (touch wood).
Just for the record, it's on "dynamically adjust".
noingwhat said:
Also, (and this may simply be an issue with the S3 and not lux itself) but sometimes I will be in a decently lit room and be at 1 lux, while lights out is 0. Not a lot of variance unless it's really bright outside. Have you found anyway to increase the light sensors sensitivity?
Click to expand...
Click to collapse
If the display is a bit dirty (oily, dusty, etc) around the light sensor, you can try to clean it. If this is not the case, open the dashboard, let it determine the light level or hit "auto" a few times and make sure the reading is correct. Then just slide your finger along the yellow line to find the appropriate brightness level and long press the chain to link. Go to a brighter lit room then go back to the first room and see how LUX behaves. Also lock/unlock the phone a few times and see how it goes.
If you still have problems running LUX, disable it and check the default Android auto brightness to make sure it's not a sensor issue.
LUX also has the possibility to set the response delay under Settings -> Advanced -> Developer Settings (the last to just on the bottom, but for this you would need to buy the full version.
Inginerul said:
If the display is a bit dirty (oily, dusty, etc) around the light sensor, you can try to clean it. If this is not the case, open the dashboard, let it determine the light level or hit "auto" a few times and make sure the reading is correct. Then just slide your finger along the yellow line to find the appropriate brightness level and long press the chain to link. Go to a brighter lit room then go back to the first room and see how LUX behaves. Also lock/unlock the phone a few times and see how it goes.
If you still have problems running LUX, disable it and check the default Android auto brightness to make sure it's not a sensor issue.
LUX also has the possibility to set the response delay under Settings -> Advanced -> Developer Settings (the last to just on the bottom, but for this you would need to buy the full version.
Click to expand...
Click to collapse
Thanks, but I think it is more of an issue of the sensor not being sensitive enough. I'm not sure if this is anything you can change in lux or if it would have to be edited in the kernel (or if it is fault of the hardware) but I just feel like the sensor doesn't go down low enough. As I said, I can get down to 1 or 0 in a decently lit room, and yes I have tried cleaning the screen. It's not like it jumps around or anything so it's not like I would notice anything in default auto brightness, it's just that it doesn't seem to be sensitive enough.
Screen filter is great!! I use as well!!!
Sent from my SCH-I535 using Tapatalk 2
Well for my Desire S, the lowest light level that the sensor can read is 160 lux (raw value). You can try and set LUX to use raw values because this is more accurate in my oppinion.
Another +1 for Screen filter here
Does anyone know how to use "luma" values for automatic adjustment in Lux instead of "lux" values?
noingwhat said:
Does anyone know how to use "luma" values for automatic adjustment in Lux instead of "lux" values?
Click to expand...
Click to collapse
What I have noticed on my phone is that "luma" readings are taken from the front facing camera, while "lux" readings are taken from the ambient light sensor (you can chose which one to use in the settings).
I suppose the front facing camera uses more battery than the light sensor; it also appears to be more sensitive because it can read more light levels.
Inginerul said:
What I have noticed on my phone is that "luma" readings are taken from the front facing camera, while "lux" readings are taken from the ambient light sensor (you can chose which one to use in the settings).
I suppose the front facing camera uses more battery than the light sensor; it also appears to be more sensitive because it can read more light levels.
Click to expand...
Click to collapse
I guess so. Thanks! But doesn't that kinda defeat the whole purpose of Lux? Because you can't use automatic mode with the camera(s).... so then what's it good for?
Well even if you don't have an ambient light sensor, you can still use the camera to check the light level when you unlock the phone and let LUX adjust the brightness level. Of course it's not dynamic but it's still better than having the brightness at 50% the whole time or changing brightness levels through a widget..

Hall Sensor

I am working on a project with Hall Sensor in Samsung Galaxy S4. It works fine but the problem is i dont know how to use the sensors for realtime apps except smart sview. If you post the idea's then we can use my hall sensor class with the activity app to create variety of apps.
Also i want to know how much magnetic force needed to activate sensor. i dont want to damage my sensor with power full magnet while testing. and couple of ideas to get low power magnets from which toys suitable for this project.
sanris said:
I am working on a project with Hall Sensor in Samsung Galaxy S4. It works fine but the problem is i dont know how to use the sensors for realtime apps except smart sview. If you post the idea's then we can use my hall sensor class with the activity app to create variety of apps.
Also i want to know how much magnetic force needed to activate sensor. i dont want to damage my sensor with power full magnet while testing. and couple of ideas to get low power magnets from which toys suitable for this project.
Click to expand...
Click to collapse
Hi since i am seeing you working with the hall sensor, hope you can solve or suggest whats wrong in my GTi9500 India version. the S-view display comes by itself, when i am just holding the phone in my hand[ without the actual S-view cover].
Details.
My GTi9500 is just having its own back cover, nothing extra,
when i make a call and hold the phone in my hand, i can see the call screen of the s-view mode flashing for a brief and then goes back to normal. i understand that the sensor is right below the volume button, and when i am holding this area with my hand i can see this s-view display flicker.
it also happened couple of times in app drawer screen and the stock browser screen.
my phone is complete stock, i havent rooted it and changed the rom/kernel/modem.
have run the diagnostics via *#0*# Diagmode
am seeing the sensor test results are PASS>
so how can i solve this. or is this a hardware issue and do i go for a repair?
First you need to confirm whether the problem occurs when phone in a wooden table without surrounding by magnetic flux. Just find a better place with very magnetic field, etc and put in a wooden table and confirm whether it changes or not. In couple of days, i will release the hall sensor monitor. you can use it too to find it instead of looking into phone for long time.
Second, if it happens only in hand, then
if you wearing any magnet rings or other iron (may magnetized by flux), etc then remove it then operate the phone and confirm whether your problem is solved or not.
Hall Sensor, is a very sensitive sensor which is just below the volume buttons and few mm away from edge.
Hall Sensor working based on sensitive magnetic flux attraction. (not sure whether its south pole or north pole. i dont have testing magnet with pole identifications)
Hall Sensor activates automatically if the magnetic field is > xx (minimum) level. In S-View cover, its very very tiny magnet not easy to notice by novice users. so your phone may act abnormal when you using your rings, bracelets, etc.
--
if your phone works abnormally when in isolated wooden table and there is no high radiation towers near you then its hardware defect. you need to contact customer care service centre.
sanris said:
First you need to confirm whether the problem occurs when phone in a wooden table without surrounding by magnetic flux. Just find a better place with very magnetic field, etc and put in a wooden table and confirm whether it changes or not. In couple of days, i will release the hall sensor monitor. you can use it too to find it instead of looking into phone for long time.
Second, if it happens only in hand, then
if you wearing any magnet rings or other iron (may magnetized by flux), etc then remove it then operate the phone and confirm whether your problem is solved or not.
Hall Sensor, is a very sensitive sensor which is just below the volume buttons and few mm away from edge.
Hall Sensor working based on sensitive magnetic flux attraction. (not sure whether its south pole or north pole. i dont have testing magnet with pole identifications)
Hall Sensor activates automatically if the magnetic field is > xx (minimum) level. In S-View cover, its very very tiny magnet not easy to notice by novice users. so your phone may act abnormal when you using your rings, bracelets, etc.
--
if your phone works abnormally when in isolated wooden table and there is no high radiation towers near you then its hardware defect. you need to contact customer care service centre.
Click to expand...
Click to collapse
Thanks for your feedback, lemme try this and comeback...
Still issues
ksenthi5 said:
Thanks for your feedback, lemme try this and comeback...
Click to expand...
Click to collapse
Hi, the problem still persisted even when the phone is just in the wooden table, hence i went to service center and they changed the mother board.
[not sure whether the sensor gets changed with this], as the executives don't even have knowledge of sensors...
but with the new board also am facing the same problem.
note: i owned a S4 for three months prior to this, and was walking.using, working in the same environment. and with same environment am still there. but facing this issue only in the new phone...
what shall i do... force to get my phone replaced?????
Contact customer care online and submit a complaint about malfunction of Hall sensor as well as problem persist after changing motherboard. Then go to customer care with the online complaint and ask them to replace hall sensor.
Sent from my GT-I9500 using XDA Premium 4 mobile app
One doubt
sanris said:
Contact customer care online and submit a complaint about malfunction of Hall sensor as well as problem persist after changing motherboard. Then go to customer care with the online complaint and ask them to replace hall sensor.
Sent from my GT-I9500 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
As am not so novice on Hardware, when you ask me to request the service technician to change the hall sensor, even after changing the motherboard, do you mean that the Change of board doesnt constitute hall sensor change?.
is that a seperate entity
ksenthi5 said:
As am not so novice on Hardware, when you ask me to request the service technician to change the hall sensor, even after changing the motherboard, do you mean that the Change of board doesnt constitute hall sensor change?.
is that a seperate entity
Click to expand...
Click to collapse
samsung replace the phone only if problem unable to resolve after changing parts several times. thats why i told you like that.
there is only three kind of problems.
1. sensors not working properly
2. sensors working properly but sensorhub ic(u805) or corresponding ic unable to process values from sensor and fail to send further.
3. environment makes the sensor work ubnormaly.
in motherboard it has most of sensors as well as ic's u805 , u807 & u600 .
in small piece of pcb in bottom have humidity and temperature sensors which feed data to the above ic's.
few sensors may not directly in motherboard and feed data to motherboard.
i just want to know few things
1. whats your exact problem ? (screen goes blank sometimes or do you see the mini window ). screen goes blank in two situations. 1) when samsung service receive DOOR_CLOSED event from hall sensor , 2) proximity sensor detect close objects and during call (by software program) it turn off display.
2. settings > My Device > Accessory > S View Cover - make sure this setting is disabled for you.
3. how you checked your hall sensor is malfunctioning ?
----------------------------------------------
To activate hallsensor
SIMPLY USE MAGNETIC SCREW DRIVER . see the snapshots
also pls send your email id to me in PM, i will send you some reference materials and circuits. so you can understand better.
sanris said:
samsung replace the phone only if problem unable to resolve after changing parts several times. thats why i told you like that.
there is only three kind of problems.
1. sensors not working properly
2. sensors working properly but sensorhub ic(u805) or corresponding ic unable to process values from sensor and fail to send further.
3. environment makes the sensor work ubnormaly.
in motherboard it has most of sensors as well as ic's u805 , u807 & u600 .
in small piece of pcb in bottom have humidity and temperature sensors which feed data to the above ic's.
few sensors may not directly in motherboard and feed data to motherboard.
i just want to know few things
1. whats your exact problem ? (screen goes blank sometimes or do you see the mini window ). screen goes blank in two situations. 1) when samsung service receive DOOR_CLOSED event from hall sensor , 2) proximity sensor detect close objects and during call (by software program) it turn off display.
2. settings > My Device > Accessory > S View Cover - make sure this setting is disabled for you.
3. how you checked your hall sensor is malfunctioning ?
----------------------------------------------
To activate hallsensor
SIMPLY USE MAGNETIC SCREW DRIVER . see the snapshots
also pls send your email id to me in PM, i will send you some reference materials and circuits. so you can understand better.
Click to expand...
Click to collapse
see the photos to generate sviewcover door close event
sorry, i just read your first message again. your problem definetly related with hallsensor (if actually available). other wise its related to magnetic sensor. i will open my s4 and confirm you whether hall sensor is in motherboard or separated OR magnetic sensor acting as a hall sensor.
problem is only with hall sensor or sensorhub ic u805. you can also check whether the aluminium frame magnetized or not by using a iron piece. and try to turn off the S View Cover feature in my display> acc... like i mentioned in previous post.
for hall sensor testing, i almost finished my new android app, i will publish it and upload into xda soon. its running as a service+activity (b'cause. when doorcloses the activity get freezed and unable to log status. it log status again only after phone wakes. so i wrote part of sensor readings in service and display report in activity) and log the status when ever the door event raises. i mean Doorclosed/DoorOpen. and you need to open the application activity and see the report with timings and door state changes.
sanris said:
sorry, i just read your first message again. your problem definetly related with hallsensor (if actually available). other wise its related to magnetic sensor. i will open my s4 and confirm you whether hall sensor is in motherboard or separated OR magnetic sensor acting as a hall sensor.
problem is only with hall sensor or sensorhub ic u805. you can also check whether the aluminium frame magnetized or not by using a iron piece. and try to turn off the S View Cover feature in my display> acc... like i mentioned in previous post.
for hall sensor testing, i almost finished my new android app, i will publish it and upload into xda soon. its running as a service+activity (b'cause. when doorcloses the activity get freezed and unable to log status. it log status again only after phone wakes. so i wrote part of sensor readings in service and display report in activity) and log the status when ever the door event raises. i mean Doorclosed/DoorOpen. and you need to open the application activity and see the report with timings and door state changes.
Click to expand...
Click to collapse
thanks, in the idea of getting my phone replaced, again i visited the service center today, and they have taken it for service. ok
Please let me know about both senor - magnetic and Hall sensor... whether these two are separated from motherboard or attached to it.
Hi,
the app works well as far as I can say. Just one request: would it be possible to have the closed cover turn the screen off instead of locking the phone?
With the phone lock set to password, the time delay between screen off (time out or using the button) and phone lock is not respected.
Thanks!
Sent from my GT-I9505 using XDA Premium 4 mobile app
sanris said:
I am working on a project with Hall Sensor in Samsung Galaxy S4. It works fine but the problem is i dont know how to use the sensors for realtime apps except smart sview. If you post the idea's then we can use my hall sensor class with the activity app to create variety of apps.
Also i want to know how much magnetic force needed to activate sensor. i dont want to damage my sensor with power full magnet while testing. and couple of ideas to get low power magnets from which toys suitable for this project.
Click to expand...
Click to collapse
Have you released your app? I'm also curious how you receive the events from the sensor, and would be very happy if you could share the knowledge.
sanris said:
...
for hall sensor testing, i almost finished my new android app, i will publish it and upload into xda soon. its running as a service+activity (b'cause. when doorcloses the activity get freezed and unable to log status. it log status again only after phone wakes. so i wrote part of sensor readings in service and display report in activity) and log the status when ever the door event raises. i mean Doorclosed/DoorOpen. and you need to open the application activity and see the report with timings and door state changes.
Click to expand...
Click to collapse
Hi,
I just stumbled across your thread searching for Hall Sensor.
Is your app available somewhere? Also, sorry if this is a stupid question (I'm not into Android dev), but does your app depend on Samsung / TW framework / API or does it work with alternative ROMS (CM, AOSP, PA,..)?
AFAIK those ROMs do not support the S-View, so if your solution is not tied to Samsung framework / API, this would probably help a lot of people (like myself) running non-Samsung ROMs on their S4, Note 3.
As for different uses, there might be plenty but a good idea, I think, would be to develop a Tasker plugin. This would open a lot of possibilities.
Thanks.
LuMe96 said:
Hi,
I just stumbled across your thread searching for Hall Sensor.
Is your app available somewhere? Also, sorry if this is a stupid question (I'm not into Android dev), but does your app depend on Samsung / TW framework / API or does it work with alternative ROMS (CM, AOSP, PA,..)?
AFAIK those ROMs do not support the S-View, so if your solution is not tied to Samsung framework / API, this would probably help a lot of people (like myself) running non-Samsung ROMs on their S4, Note 3.
As for different uses, there might be plenty but a good idea, I think, would be to develop a Tasker plugin. This would open a lot of possibilities.
Thanks.
Click to expand...
Click to collapse
First, it's worth to mention I'm not involved in development of this app in any way.
One way to get the app is to install F-Droid, the alternate open source market. Then look for Hall Monitor.
The app doesn't depend on TW, it's developed from scratch. It definitely works on CM @ Galaxy S4 and should work on any device with magnetic sensor, but I didn't test it on any other device or ROM.
Sent from my GT-I9505 using XDA Premium 4 mobile app
Hi,
Thanks a lot for the information.
Envoyé de mon GT-N5120 en utilisant Tapatalk
Hall monitor 0.2.2 is great for use with cm11.
Just found it and it works great. I just think it has unneeded permissions. Other than that it's a great app.
sanris said:
I am working on a project with Hall Sensor in Samsung Galaxy S4. It works fine but the problem is i dont know how to use the sensors for realtime apps except smart sview. If you post the idea's then we can use my hall sensor class with the activity app to create variety of apps.
Also i want to know how much magnetic force needed to activate sensor. i dont want to damage my sensor with power full magnet while testing. and couple of ideas to get low power magnets from which toys suitable for this project.
Click to expand...
Click to collapse
Hall sensor is not for generic use. The sole purpose of this sensor is to handle S-View cover. State of this sensor monitored in framework and there is no way to use it in 3rd party apps. Well, unless you root and hack the ROM (which is completely different story).
I have a similar kind of problem, when i turn on mobile data or when i am on a call, the S view will flash through the screen for few milliseconds.
Any idea on this guys ?
Thanks
It seems to be there is no dedicated hall sensor in device. magnetic sensor seems to be acting as hall sensor. in samsung galaxy s4, the the samsung core framework update the hallsensor data file with wrong values mistakenly. for example, change the door to CLOSED state even the door is open due to tiny fluctuation in magnetic sensor reading. samsung need to change hall sensor value from OPEN to CLOSED only when strong magnetic field. may be they fix this in next update.
For now, there seems to be 5 solutions.
1. you can turn off S-VIEW in settings
2. replace your magnetic sensor
3. root the device and write-protect the file hall_data in system folder with value "CLOSED"
4. root the device and try to disable S-VIEW
5. try other non-samsung rom
Karthik

calibrate altimeter

does anybody know how to calibrate the altimeter on the watch 2? it does work very precise tracking how many meters you ascent or descent while out and about, but knowing your excact altitude depends on barometric presure which is variable and needs calibrating. there is one standard watch face included called 'outside' on the watch which shows pressure and current altitude, but i cant seem to find a way to calibrate the altimeter. anybody any ideas?
glenner05 said:
does anybody know how to calibrate the altimeter on the watch 2? it does work very precise tracking how many meters you ascent or descent while out and about, but knowing your excact altitude depends on barometric presure which is variable and needs calibrating. there is one standard watch face included called 'outside' on the watch which shows pressure and current altitude, but i cant seem to find a way to calibrate the altimeter. anybody any ideas?
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Did you ever find a way? I'm at sea level and it tells me I'm -21m
Sent from my Pixel 2 using Tapatalk
It's not that simple, and it's probably nothing that should be calibrated too. Giving you the altitude, based only on the barometic pressure (which is the sensor that the watch has), it's impossible. You need the local temperature too. Since the watch doesn't have a temp sensor, it relies on the temperature received from the internet to calculate the altitude. So, if the temperature is not accurate enough, it wil show you incorrect altitude "readings".
you can calibrate it by tapping the weather icon on Outdoor watch face ( see https://consumer.huawei.com/en/support/faqs/detail/?id=154328&name=HUAWEI WATCH 2 ) .It has nothing (or very little) to do with temperature. Altitude can be directly estimated from pressure, the problem is that air pressure varies over time (cyclone, anticyclone...).
More to the point is how to calibrate the barometer. It reads way too low (by 9mb/hPa).

Question Barometer react to display tap/pressure?

Can someone confirm that this is present on yours X5III? Wondering if this is by design or some fault.
I'm using barometer to log an altitude of my trips..
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Open app showing barometer data (preferably Phyphox), run pressure test.
Tapping or making pressure to middle part of the display makes pressure go peaking high and low. Like this:
Probably normal, you're changing the internal pressure when you do that.
Means the watertight seal still intact.
Fun fact: this water-tight seal, plus a barometric sensor, has been used by apps to simulate features like the side squeeze Pixels had from series 2 thru 3a.
I tried the same thing on my old X Compact and it does the same thing. Only the sensor on XC has a lot slower readout so it does not show so rapidly and sometimes it smooth it out. Well, need to be more soft on tapping while also recording altitude with barometet ) thx for replies

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