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I'm an avid hiker/trail runner and former Blackberry owner. My old 9930 was unable to accurately (or even rough ballpark) determine altitude by utilizing its GPS sensors. But the Note has a built in barometer which measures air pressure. This should allow fairly accurate altitude readings especially when combined with GPS. Are there any programs available that utilize both the barometer and GPS to calculate altitude?
pj737 said:
I'm an avid hiker/trail runner and former Blackberry owner. My old 9930 was unable to accurately (or even rough ballpark) determine altitude by utilizing its GPS sensors. But the Note has a built in barometer which measures air pressure. This should allow fairly accurate altitude readings especially when combined with GPS. Are there any programs available that utilize both the barometer and GPS to calculate altitude?
Click to expand...
Click to collapse
If you install Elixer2 from the market you should be able to test the sensors to ensure they're accurate in the first place, then I'd do the hunt for apps to use it. Last thing I'd wanna do is pay money for an app only to find out the barometer is broken to all hell.
Search the market... I'm sure you will find something.
Hi, i'm interested in playing with the Barometer data in this thing too.
If you don't find any decent apps for it, perhaps i'll add it to my to-do
Just installed Elixer2 and checked the pressure sensor relative to a home weather station I have and it's dead on accurate to what I'm getting from the weather station.
To quote someone more famous than me: "You're all clear kid, now let's blow this thing and go home!" to which I mean start hunting on the market.
itsjusttim said:
Search the market... I'm sure you will find something.
Click to expand...
Click to collapse
I've been searching. All the "altimeter" programs out there utilize only the cellphone's GPS sensors to determine (i.e. guess) altitude. The results are, at best, horribly inaccurate. None of the programs utilize a phone's barometer... which makes sense as there aren't many phones out there that have them integrated.
There are a few in the market. Just search barometric pressure, most state only for galaxy nexus and Xoom...as those where some of the first with the sensor but should work on the Note
Edit top four are free apps also
Sent from my Galaxy Nexus using Tapatalk
This one uses the barometric pressure sensor, it's very simple though.
https://market.android.com/details?id=org.ssandon.altimeter&feature=search_result
pattmyn said:
If you install Elixer2 from the market you should be able to test the sensors to ensure they're accurate in the first place, then I'd do the hunt for apps to use it. Last thing I'd wanna do is pay money for an app only to find out the barometer is broken to all hell.
Click to expand...
Click to collapse
service menu
*#0*#
u can run sensor test there
Raw data from the built-in barometer will not be all that accurate for determining your altitude. All that you will get is the barometric pressure at your location and, possibly your uncorrected altitude relative to mean sea level. In order to obtain your correct altitude, the app will have to access the AWOS data from the nearest airport, to get the correct altimeter setting. High or low pressure systems moving through your area can cause your altitude to be incorrectly calculated by a couple hundred feet or so. This is why aircraft altimeters have an adjustment on them to dial in the current altimeter setting.
Does anyone have any tricks to getting better results from the heart monitor? It seems that sweat causes problems. I am wondering if there is some way to work around that. Maybe some material that will impede the sweat but not the sensor?
illdill said:
Does anyone have any tricks to getting better results from the heart monitor? It seems that sweat causes problems. I am wondering if there is some way to work around that. Maybe some material that will impede the sweat but not the sensor?
Click to expand...
Click to collapse
Short answer, No. Why? Understanding how the sensor works will give you a better understanding of why.
The sensor emits light into the skin which is then reflected back, this is how you get your readings. (This is why apple for instance has issues with tatoos) Little things like tattoo, sweat and even hair follicles, lotion, scars, etc could all impede the readings. This is why hospitals use the finger sensors along with some Samsung devices. These give the most accurate, un-obscured readings. Hope this helps answer you question.
illdill said:
Does anyone have any tricks to getting better results from the heart monitor? It seems that sweat causes problems. I am wondering if there is some way to work around that. Maybe some material that will impede the sweat but not the sensor?
Click to expand...
Click to collapse
Looks like simply wearing it on the inside of my wrist solved the problem.
Back in the days when I owned my Xperia Z3 there was a thread (linked below) that helped users check if their phone was waterproof by using the built in pressure sensor in the hidden menu, if you want to read it in detail then I've linked the thread, but basically once you where in the pressure sensor test you'd slightly compress the phone using your thumb and index finger by pressing on the display and back.
Then: (From OP)
"If all seals are intact the pressure should rise.
Your phone*with intact seals is a closed*system.
If you compress the volume the pressure goes up as a result.
If any of the seals is compromised pressure will not rise."
"Note: pressure will decrease automatically"
So basically my question is, is there any equivalent of this for our Mate 10 Pro, I had a nasty drop recently and I'm concerned it could have potentially compromised a seal or something, and water damage isn't covered in our warranty so I don't want to risk it.
Please no replies about how I just shouldn't use it underwater etc. I often take underwater shots with my Mate 10 Pro.
Any help/replies are really appreciated
Thread:
https://forum.xda-developers.com/z3/general/guide-test-waterproofing-water-t2897886
Did u read the thread that you linked?
Simply download sensors app from playstore, open pressure section and check if the pressure rises when you apply force to the device...
Rstment ^m^ said:
Did u read the thread that you linked?
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Click to collapse
Clearly or I wouldn't have linked it here, quoted it, or made this post in the first place...
Rstment ^m^ said:
Simply download sensors app from playstore, open pressure section and check if the pressure rises when you apply force to the device...
Click to expand...
Click to collapse
A lot of the sensor apps don't actually measure the pressure of the phone they do the air pressure based on your GPS location, it's hard to differentiate the 2 when searching, also I've read that third party apps don't give a accurate reading without root access, that's why I specifically referenced the Xperia thread because that one was accessible through the built in hidden menu from Sony themselves.
TheInfiniteAndroid said:
Clearly or I wouldn't have linked it here, quoted it, or made this post in the first place...
A lot of the sensor apps don't actually measure the pressure of the phone they do the air pressure based on your GPS location, it's hard to differentiate the 2 when searching, also I've read that third party apps don't give a accurate reading without root access, that's why I specifically referenced the Xperia thread because that one was accessible through the built in hidden menu from Sony themselves.
Click to expand...
Click to collapse
Download "Sensors Test" by EXA Tools, go down to "Pressure", tap the graph, apply pressure and see it go up and down.
ante0 said:
Download "Sensors Test" by EXA Tools, go down to "Pressure", tap the graph, apply pressure and see it go up and down.
Click to expand...
Click to collapse
I'll be sure to give it a go later, thanks for your help
TheInfiniteAndroid said:
Clearly or I wouldn't have linked it here, quoted it, or made this post in the first place...
A lot of the sensor apps don't actually measure the pressure of the phone they do the air pressure based on your GPS location, it's hard to differentiate the 2 when searching, also I've read that third party apps don't give a accurate reading without root access, that's why I specifically referenced the Xperia thread because that one was accessible through the built in hidden menu from Sony themselves.
Click to expand...
Click to collapse
You literally type sensors in the playstore and download the first app - sensors multitool.
Root access isn't required to perform such check. Even the thread you linked clearly states that the function found in the factory test mode is basically a barometer output readout which means any 3rd party app that is able to read sensors data should be fine.
Tho your device might still seem water resistant upon performing this, keep in kind that it only tells you that the seal isn't broken yet.
Meaning even a small splash could reach into the device if the seal is already weakened .
If you have any friends that are in the repair business ( Repairing latest flagships ) ask around, they usually have tools for determinating water resistance of devices after repair.
Rstment ^m^ said:
Tho your device might still seem water resistant upon performing this, keep in kind that it only tells you that the seal isn't broken yet.
Click to expand...
Click to collapse
Yeah I'm definitely aware of this, unfortunately I'm not sure what else I can do.
Rstment ^m^ said:
If you have any friends that are in the repair business ( Repairing latest flagships ) ask around, they usually have tools for determinating water resistance of devices after repair.
Click to expand...
Click to collapse
I'll be sure to ask around, thanks for the advice :good:
Thank you fo the tip. Could someone kindly post a screenshot of what fingers' pressure produce on a graph ? I had my Mate 10 Pro opened at a Huawei Repair center for a screen replacement (OLED oled burn in), and the pressure graph does not show any relevant variation...
Before and after they proceeded with screen (and back cover as they messed up the first time, it was not perfectly glued) replacement, I asked them about IP waterproof/certification, they answered me they take care of this applying a new seal...
Scalpos said:
Thank you fo the tip. Could someone kindly post a screenshot of what fingers' pressure produce on a graph ?
Click to expand...
Click to collapse
It's worth me mentioning that I still haven't submerged mine in water, the slight spikes in the graph show when I applied pressure.
*If you try this don't press too hard*
Feel like that's worth mentioning lol
TheInfiniteAndroid said:
It's worth me mentioning that I still haven't submerged mine in water, the slight spikes in the graph show when I applied pressure.
*If you try this don't press too hard*
Feel like that's worth mentioning lol
Click to expand...
Click to collapse
Here is mine. Pressure seems lower here
https://i.imgur.com/2DCUtao.jpg
ante0 said:
Here is mine. Pressure seems lower here
https://i.imgur.com/2DCUtao.jpg
Click to expand...
Click to collapse
When you apply pressure/squeeze what does your number increase to? Mine goes from 1015.1 to 1016.3 briefly
TheInfiniteAndroid said:
When you apply pressure/squeeze what does your number increase to? Mine goes from 1015.1 to 1016.3 briefly
Click to expand...
Click to collapse
Yes, but not by much.
From 1003.5 to 1004.0, this was using a lot of pressure.
If I use "normal" it only goes up by 0.2
ante0 said:
Yes, but not by much.
From 1003.5 to 1004.0, this was using a lot of pressure.
If I use "normal" it only goes up by 0.2
Click to expand...
Click to collapse
If yours is 1003 and mines 1015 and you know that yours is waterproof then I can only assume mine isn't right?, If you get a moment could you take out the SIM card tray and see what the number changes to? Because with the SIM tray out, then the phone obviously isn't water tight.
TheInfiniteAndroid said:
If yours is 1003 and mines 1015 and you know that yours is waterproof then I can only assume mine isn't right?, If you get a moment could you take out the SIM card tray and see what the number changes to? Because with the SIM tray out, then the phone obviously isn't water tight.
Click to expand...
Click to collapse
When removing sim pressure does nothing. It stays at 1003
But I guess, if yours was broken it wouldnt react to pressure either.
ante0 said:
When removing sim pressure does nothing. It stays at 1003
Click to expand...
Click to collapse
Are you sure that yours is waterproof, I'm not saying try it but are you confident that it is, i.e have you submerged it in water recently?
TheInfiniteAndroid said:
Are you sure that yours is waterproof, I'm not saying try it but are you confident that it is, i.e have you submerged it in water recently?
Click to expand...
Click to collapse
I have never done that. But I haven't dropped it either... So I can't say for sure it is waterproof.
But I can compare to my Mate 9 which has been dropped a few times, not by high heights but anyway.
Edit: Removing case from mate 10 pro increased pressure rating to 1004. But it's exactly the same on my Mate 9. I guess altitude counts in too?
ante0 said:
I have never done that. But I haven't dropped it either... So I can't say for sure it is waterproof.
But I can compare to my Mate 9 which has been dropped a few times, not by high heights but anyway.
Click to expand...
Click to collapse
I'm not too knowledgeable on the whole subject which makes things worse, hence the thread lol, I don't know why yours is 1003 and mine is 1015, if my phone wasn't water tight wouldn't the number be lower that yours which is water tight? A third persons results could be useful though to see what they got
TheInfiniteAndroid said:
I'm not too knowledgeable on the whole subject which makes things worse, hence the thread lol, I don't know why yours is 1003 and mine is 1015, if my phone wasn't water tight wouldn't the number be lower that yours which is water tight? A third persons results could be useful though to see what they got
Click to expand...
Click to collapse
I guess it would need to count in air pressure too...
I'm trying to find SOMETHING on this subject, but most topics are about already broken seals...
But as you wrote in OP, the seal should be intact if pressure goes up when you put pressure on the display. Which it does for both of us.
Right now it's 1009 hPa here in the air, 42m above sea level. I will check again tomorrow and see if 1004 increases or not
Edit: And checking the posts in the thread you linked in OP, all of them have varying "start" hPa.
Edit 2: at 1004,7 now
ante0 said:
Right now it's 1009 hPa here in the air, 42m above sea level.
Click to expand...
Click to collapse
Where I am it's 1019 hPa and 30m above sea level.
The information around this subject seems to be scarce, hopefully someone who knows a bit more will check out the thread and have a different insight.
Mine is 987,7 hPa (altitude 215m)
When i press, it goes 988, 2 hPa
Hey, have this phone from yesterday, europe dual sim version. How is for you the 3d face unlock?
I feel it's often inaccurate and in these cases it it does not unlock the phone.
Also, when i am in a dark room wit a good light behind me it's often inaccurate and, again, in these cases it it does not unlock the phone always.
In fact, if you try to register your face in this last condition you will see the face very very dark and this is a problem obviously for the face unlock.
I remember this last same "dark" problem also with the P20 Pro sensor.
What you think? Any solutions? Maybe in next updates?
Edit 1: https://www.reddit.com/r/Huawei/comments/9rnmpa/mate_20_pro_face_unlock_issues/
Edit 2:
I'm having similar issues here.. It will work perfectly sometimes and then just doesn't
Click to expand...
Click to collapse
UP
https://www.reddit.com/r/Huawei/comments/9rnmpa/mate_20_pro_face_unlock_issues/
Edit 2:
I'm having similar issues here.. It will work perfectly sometimes and then just doesn't
Click to expand...
Click to collapse
just dont register your face in bad lighting conditions where it cannot be registered properly. I dont understand your problem tbh. Face unlock is a combination of the infrared thing and the camera.... if you use your phone while sitting in front of a bright light you cannot expect it to work. its like having wet or dirty fingers and comlpaining fingerprint isnt working.
0alfred0 said:
just dont register your face in bad lighting conditions where it cannot be registered properly. I dont understand your problem tbh. Face unlock is a combination of the infrared thing and the camera.... if you use your phone while sitting in front of a bright light you cannot expect it to work. its like having wet or dirty fingers and comlpaining fingerprint isnt working.
Click to expand...
Click to collapse
Conditions are good.
if you use your phone while sitting in front of a bright light
Click to expand...
Click to collapse
.... behind of a bright light, as written in first post, in fact if i try to register face in this last condition face is almost dark, but in this case the infrared camera should not help anyway?
With my iphone x in the SAME condition the face unlock works ALWAYS instantly, so i can see the difference.
denzel09 said:
Conditions are good.
.... behind of a bright light, as written in first post, in fact if i try to register face in this last condition face is almost dark, but in this case the infrared camera should not help anyway?
With my iphone x in the SAME condition the face unlock works ALWAYS instantly, so i can see the difference.
Click to expand...
Click to collapse
Well if you register your face in good lighting and the unlock does not work in good lighting then there is probably something wrong. You should contact huawei about that.
If you are trying to create a bad lighting condition on purpose and then it doesnt work I am not sure why you do this. There is no point. If you are in everyday live, like in a bar or pub and the lighting is bad you have to expect that face unlock is not going to be the most reliable. Its that simple. Sitting at home and trying to push it to its limits does not benefit you at all.
It is not as secure nor the same technology as face ID so there is no point in comparing them. If FaceID is better you have to accept it. No update can change the hardware.... maybe it will be optimized but it is not going to improve by 100%.
Surely ambient light has nothing to do with the face unlock method used here, as the camera is searching for an IR dot pattern. If anything, I'd expect it to work better in the dark.
0alfred0 said:
Well if you register your face in good lighting and the unlock does not work in good lighting then there is probably something wrong. You should contact huawei about that.
If you are trying to create a bad lighting condition on purpose and then it doesnt work I am not sure why you do this. There is no point. If you are in everyday live, like in a bar or pub and the lighting is bad you have to expect that face unlock is not going to be the most reliable. Its that simple. Sitting at home and trying to push it to its limits does not benefit you at all.
It is not as secure nor the same technology as face ID so there is no point in comparing them. If FaceID is better you have to accept it. No update can change the hardware.... maybe it will be optimized but it is not going to improve by 100%.
Click to expand...
Click to collapse
It works in good light but it's not accurate like FaceID or also other 2D unlock tried until now. It's not accurate, for example, when I'm sitting in an armchair often it wants certain angles to unlock, etc..
I can understand your point about create "bad light condition". Until few days ago i had a One Plus 6 with 2D face unlock, but not only it, and in the same Mate 20 conditions i had no one single problem with angles or light behind me! Maybe it's a bit hard to explain..
David Horn said:
Surely ambient light has nothing to do with the face unlock method used here, as the camera is searching for an IR dot pattern. If anything, I'd expect it to work better in the dark.
Click to expand...
Click to collapse
In fact it is the same thing that I thought! "Better in the dark", but in the evening when there is an artificial light behind me, sitting in an armchair, the unlock starts to have a bit of difficulty. And instead it should be the opposite, it should work better.
In this situation if i try to register my face in fact i see my face really dark cause the light behind me goes exactly on the sensor. Same thing with P20 Pro sensor. Only with Huawei i have seen this "problem". Nor with Samsung, nor with One Plus nor with Pocophone, etc..
It's really strange.
Check the software/EMUI problem thread, see if anyone else is reporting it. Otherwise, it's news to me.
roosta said:
Check the software/EMUI problem thread, see if anyone else is reporting it. Otherwise, it's news to me.
Click to expand...
Click to collapse
I think no one until now. Like no one with P20 Pro. Surely it's not fast like Apple Face ID. In same conditions. Sure about this because i have both with me so...
denzel09 said:
In fact it is the same thing that I thought! "Better in the dark", but in the evening when there is an artificial light behind me, sitting in an armchair, the unlock starts to have a bit of difficulty. And instead it should be the opposite, it should work better.
In this situation if i try to register my face in fact i see my face really dark cause the light behind me goes exactly on the sensor. Same thing with P20 Pro sensor. Only with Huawei i have seen this "problem". Nor with Samsung, nor with One Plus nor with Pocophone, etc..
It's really strange.
Click to expand...
Click to collapse
for comparison. I just tested bad lighting with my mate 10 pro... worked just fine... immediate unlock
i am not sure about the IR thing. it should definately work with no light but i am not sure if it is able to "work against" light. if your light sends out inrared wavelengths it will definately interfere with the IR projector. I am pretty sure though it sends out infrared wavelengths since it gets hot.... heat=infrared light (that how heat cameras work).
denzel09 said:
I think no one until now. Like no one with P20 Pro. Surely it's not fast like Apple Face ID. In same conditions. Sure about this because i have both with me so...
Click to expand...
Click to collapse
Apple were the first to introduce dot-mapping (or whatever they call the technology) to scan all areas, from left to right, of the face. The android versions on phones is more watered down...but it seems Huawei are using their own software of facial mapping which I imagine is designed to work the same as Face ID on Apple...but as there's some bugs with the pre-releases, I'd potentially wait and update the phone in 3-4 weeks to see if it resolve the issue.
RoOSTA
0alfred0 said:
for comparison. I just tested bad lighting with my mate 10 pro... worked just fine... immediate unlock
Click to expand...
Click to collapse
It was perfect in my "condition" with mate 10 pro with light behind me and against the cam. Because it used only the frontal cam! When i tried to register my face with Mate 10 in "my condition" my face was no dark and clearly visible!
This IS a big difference and here there is an "error" starting from P20 Pro to Mate 20 Pro.
0alfred0 said:
i am not sure about the IR thing. it should definately work with no light but i am not sure if it is able to "work against" light. if your light sends out inrared wavelengths it will definately interfere with the IR projector. I am pretty sure though it sends out infrared wavelengths since it gets hot.... heat=infrared light (that how heat cameras work).
Click to expand...
Click to collapse
Perfect point of view. Problem is: with iPhone X the IR "thing" works PERFECT against light, etc..
roosta said:
Apple were the first to introduce dot-mapping (or whatever they call the technology) to scan all areas, from left to right, of the face. The android versions on phones is more watered down...but it seems Huawei are using their own software of facial mapping which I imagine is designed to work the same as Face ID on Apple...but as there's some bugs with the pre-releases, I'd potentially wait and update the phone in 3-4 weeks to see if it resolve the issue.
RoOSTA
Click to expand...
Click to collapse
Yes, completely agree with you.
But i have a little doubt, this last comes from P20 PRO, also this with light behind me and against the sensor shows me my face all "dark" and obviously no update "fixed" this. I remember with this phone in my situation was IMPOSSIBLE use the 2D face unlock.
Idk honestly if an update here can improve this kind of sensor. I hope!
https://forum.xda-developers.com/showpost.php?p=77998095&postcount=83
Facial recognition evidently hates sunlight. If your face is side on to the sun it won't work, you have to either be in shadow or directly in the sun. The fingerprint scanner I'm also finding to be very hit and miss. I have just been out using it to take some photos, lost count of the number of times both methods of unlocking didn't work.
Click to expand...
Click to collapse
Edit...
It seems to me like a directional or sensor spread issue,
If i hold the phone level with my eyes and head straight (straight neck) it works perfectly, if i'm at my desk with it in my hand looking down at it then it doesn't. If i raise my head and phone vertical as its giving me the 'recognising face' message then it unlocks just as i hit vertical/straight neck.
Problem is i look a t**t raising my phone every time i want to unlock it (looks like i'm checking myself out in a vanity mirror!!)
Had the iPhone XS before this and it worked flawlessly head down or not.
Can someone else who is having issues test this theory?
Edit......
Can someone explain why the compass of EVERY android phone I have ever owned has sucked? From a cheap HTC Aria to an uber-expensive S23U? Specifically, the compass seems to require re-calibration very frequently. For example, if you ask for walking directions in gmaps on an iPhone, the blue cone indicating the direction of motion is always correct and pointing in the appropriate direction. On every android phone I have owned it is frequently grossly off without calibration, sometimes by as much as 180 degrees. This affects the usability of the phone in augmented reality apps, whether it is hiking, figuring out where the sun is going to rise or set, where the milky way is going to be, etc. And even after the compass is calibrated it tends to drift for a few minutes after calibration, and cannot be trusted for critical use, for example "is the sun going to set between these two spires over there".
There may be regional magnetic anomalies.
blackhawk said:
There may be regional magnetic anomalies.
Click to expand...
Click to collapse
Why has my wife's iphone never suffered then?
GroovyGeek said:
Why has my wife's iphone never suffered then?
Click to expand...
Click to collapse
You probably shouldn't have swallowed those magnetic balls as a kid?
Borrow your wife's iPhone?
GroovyGeek said:
Why has my wife's iphone never suffered then?
Click to expand...
Click to collapse
Because different phones different problems? Report it on samsung members app with some proof
blackhawk said:
You probably shouldn't have swallowed those magnetic balls as a kid?
Borrow your wife's iPhone?
Click to expand...
Click to collapse
That could have been somewhat funny if it even peripherally addressed the question.
blackhawk said:
There may be regional magnetic anomalies.
Click to expand...
Click to collapse
OMG, do you mean Tycho Magnetic Anomaly 1?
My experience also. Have owned almost every iPhone model and the compass has always been flawless. Recently spent a week in Gran Canaria and used Google Maps on my S23 ultra for hours everyday. The compass was almost way off all the time. Calibration could help a minute and the it was off again.
The wife's and kids iPhones of course worked perfectly. I had to swallow my pride and ask them for direction a lot of times Love the phone but the compass is really a disaster most of the times
GroovyGeek said:
That could have been somewhat funny if it even peripherally addressed the question.
Click to expand...
Click to collapse
Couldn't resist
Using the phone is poor plan anyway if your navigation depends on it in remote areas.
Get a military compass; KISS.
blackhawk said:
Couldn't resist
Using the phone is poor plan anyway if your navigation depends on it in remote areas.
Get a military compass; KISS.
Click to expand...
Click to collapse
Fair. But what about walking in the city? Surely I should not have to carry a military compass in order to decide which way gmaps directions are sending me.
GroovyGeek said:
Fair. But what about walking in the city? Surely I should not have to carry a military compass in order to decide which way gmaps directions are sending me.
Click to expand...
Click to collapse
You can gauge NS/EW direction by streets, landmarks or the rising/setting sun. After a time it becomes second nature. Use anything at hand that works including distant sounds.
Or simply use gps plus maps. I navigated for decades using only maps and cross highways, roads, streets etc to determine my location and direction. Didn't use a compass; formed a rough idea of north using the map and/or visual clues. Today it's so simple to do many don't have basic map or navigation skills anymore. Getting lost means you get by the seat of your pants navigational training... try that in Boston
easycure197401 said:
My experience also. Have owned almost every iPhone model and the compass has always been flawless. Recently spent a week in Gran Canaria and used Google Maps on my S23 ultra for hours everyday. The compass was almost way off all the time. Calibration could help a minute and the it was off again.
The wife's and kids iPhones of course worked perfectly. I had to swallow my pride and ask them for direction a lot of times Love the phone but the compass is really a disaster most of the times
Click to expand...
Click to collapse
I am guessin it's not the S23U's fault since ALL Android phones do it. Suggests that the screwup is at the OS level
GroovyGeek said:
I am guessin it's not the S23U's fault since ALL Android phones do it. Suggests that the screwup is at the OS level
Click to expand...
Click to collapse
The compass works smooth and true on my N10+ except in the present of magnetic anomalies. Maybe iPhone is using GPS
GroovyGeek said:
Can someone explain why the compass of EVERY android phone I have ever owned has sucked? From a cheap HTC Aria to an uber-expensive S23U? Specifically, the compass seems to require re-calibration very frequently. For example, if you ask for walking directions in gmaps on an iPhone, the blue cone indicating the direction of motion is always correct and pointing in the appropriate direction. On every android phone I have owned it is frequently grossly off without calibration, sometimes by as much as 180 degrees. This affects the usability of the phone in augmented reality apps, whether it is hiking, figuring out where the sun is going to rise or set, where the milky way is going to be, etc. And even after the compass is calibrated it tends to drift for a few minutes after calibration, and cannot be trusted for critical use, for example "is the sun going to set between these two spires over there".
Click to expand...
Click to collapse
iPhones use a different sensor and calibration method that does not require the user to draw a figure-eight. Instead, the iPhone's calibration process is automatic and continuously adjusts the sensor's readings based on the phone's movement and orientation. Don't ask me why, in 2023, Samsung's flagship still requires drawing a figure-eight to recalibrate its sensor almost every single time, while my iPhone does it automatically. It's just ridiculous.
Wad12355 said:
iPhones use a different sensor and calibration method that does not require the user to draw a figure-eight. Instead, the iPhone's calibration process is automatic and continuously adjusts the sensor's readings based on the phone's movement and orientation. Don't ask me why, in 2023, Samsung's flagship still requires drawing a figure-eight to recalibrate its sensor almost every single time, while my iPhone does it automatically. It's just ridiculous.
Click to expand...
Click to collapse
That's not the magnetic compass. I normally don't need to calibrate that but I only have one game that uses those sensors (might be the orientation sensor, there are several). My Samsung is very well behaved and predictable... likely a 3rd party app that's mucking yours up.
DevChek is handy for seeing and checking sensors.
blackhawk said:
That's not the magnetic compass. I normally don't need to calibrate that but I only have one game that uses those sensors (might be the orientation sensor, there are several). My Samsung is very well behaved and predictable... likely a 3rd party app that's mucking yours up.
DevChek is handy for seeing and checking sensors.
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Certainly not my experience. I have seen the compass on Android off by as much as 180 degrees, and without calibration is almost.alaays off by around 45 degrees. Calibrating it makes it true... till next. Time you shut off the screen after which the figure 8 song and dance needs to be repeated.
GroovyGeek said:
Certainly not my experience. I have seen the compass on Android off by as much as 180 degrees, and without calibration is almost.alaays off by around 45 degrees. Calibrating it makes it true... till next. Time you shut off the screen after which the figure 8 song and dance needs to be repeated.
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Don't see that but I rarely use it. Not sure what the calibration suppose to do unless there's nearby ferrous metal.
I have to add... in a city with lots of tall metal buildings, I often have trouble getting the figure 8 to do anything anyway.
cjkimmel said:
I have to add... in a city with lots of tall metal buildings, I often have trouble getting the figure 8 to do anything anyway.
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Yeah if bracketed by dense ferrous metal it will screw it up. It's pointless to calibrate in that case.
I can get pretty near to heavy trucks, in a large metal building and it's still fairly accurate.
However if I put in between two upright thick 8 inch C channels about 2 feet apart it goes way off by 45°.