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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?
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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.
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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.
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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.
In the app Sensor List there is listed a proximity sensor, however I have only heard of people saying the Prime has no such sensor.
The sensor is listed as: Intersil isl29018 Proximity sensor
It doesn't seem like the app can get any readings from the sensor though. Is my sensor broken or what?
Dont see why the TP would need a proximity sensor, its not like your gunna be putting your face on it !
The app is probs just detecting the light sensor as the proximity sensor or similar ..
SirGarry said:
In the app Sensor List there is listed a proximity sensor, however I have only heard of people saying the Prime has no such sensor.
The sensor is listed as: Intersil isl29018 Proximity sensor
It doesn't seem like the app can get any readings from the sensor though. Is my sensor broken or what?
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Click to collapse
The TP has no proximity sensor.
chamberc said:
The TP has no proximity sensor.
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Then how do you explain the listing of "Intersil isl29018 Proximity sensor"? Other apps list the same thing. Try it.
Elixir 2 lists a proximity sensor as well, and actually shows it as active and drawing power. But, the app doesn't show it as responding. So, who knows? Maybe proximity sensor functionality is part of a multipurpose sensor, only there's no component to actually take the required readings?
Actually, yes, that's my guess. That part number is a light and proximity sensor, and there's likely just a component to enabling the light sensor part.
http://www.intersil.com/products/deviceinfo.asp?pn=ISL29018
SirGarry said:
Then how do you explain the listing of "Intersil isl29018 Proximity sensor"? Other apps list the same thing. Try it.
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Already have tried it. The TP doesn't have a proximity sensor.
chamberc said:
Already have tried it. The TP doesn't have a proximity sensor.
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Click to collapse
Actually, you're wrong. The Prime has a proximity sensor--only it's a light and proximity sensor (check out my link above). The proximity sensor functionality simply isn't enabled in the Prime.
wynand32 said:
Actually, you're wrong. The Prime has a proximity sensor--only it's a light and proximity sensor (check out my link above). The proximity sensor functionality simply isn't enabled in the Prime.
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Click to collapse
Wrong. There is a light sensor, but it isn't a proximity sensor. Check the FCC materials.
actually i think the prima has one.
I think it is inside the dock. Because androsensor (app from the market) gives me an error on this sensor when the dock is not pluged in.
When i plug my tablet in the sensor says no signal.
Can be a bug, but mayby the dock uses the sensor in the hinge to see if it's open or closed?
There has to be the sensor its used when you close the tablet when plugged into the dock that's how it now to shut the screen off
tylermaciaszek said:
There has to be the sensor its used when you close the tablet when plugged into the dock that's how it now to shut the screen off
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Click to collapse
This could be the case, that it only activates it when coupled with the dock. However, pretty sure I haven't heard of people accidentally putting it to sleep using its touch-screen while docked, so I doubt this is the case; more likely there's a mechanical switch on the dock that let's the Prime know when to turn the screen off.
As linked above, the proximity sensor is one and the same with your light sensor (pretty sure it's like this on my phone too... will have to have a look just to be sure). We just have no need for it to be used: that being said, I wonder if dev's can unlock it just for the hell of it
chamberc said:
Already have tried it. The TP doesn't have a proximity sensor.
Click to expand...
Click to collapse
wynand32 said:
Actually, you're wrong. The Prime has a proximity sensor--only it's a light and proximity sensor (check out my link above). The proximity sensor functionality simply isn't enabled in the Prime.
Click to expand...
Click to collapse
chamberc said:
Wrong. There is a light sensor, but it isn't a proximity sensor. Check the FCC materials.
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Click to collapse
Selhati said:
actually i think the prima has one.
I think it is inside the dock. Because androsensor (app from the market) gives me an error on this sensor when the dock is not pluged in.
When i plug my tablet in the sensor says no signal.
Can be a bug, but mayby the dock uses the sensor in the hinge to see if it's open or closed?
Click to expand...
Click to collapse
all wrong. the Prime doesnt exist.
/argument
Easy test
buxtahuda said:
This could be the case, that it only activates it when coupled with the dock. However, pretty sure I haven't heard of people accidentally putting it to sleep using its touch-screen while docked, so I doubt this is the case; more likely there's a mechanical switch on the dock that let's the Prime know when to turn the screen off.
As linked above, the proximity sensor is one and the same with your light sensor (pretty sure it's like this on my phone too... will have to have a look just to be sure). We just have no need for it to be used: that being said, I wonder if dev's can unlock it just for the hell of it
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Click to collapse
Easy to prove/disprove. O have tried it when I 1st got the Prime. Put it in the dock. Close it most of the way, leaving it open about an inch or so. Put your finger over the light sensor (about 2 inches to the left of the camera) It does NOT put it in sleep mode. Close it the rest of the way. It goes to sleep. Shine a bright halogen light in to the area at top of screen, after just cracking the tablet and doc apart a fraction. It does NOT come out of sleep. There seems to be a mechanical switch in the hinge. Which I am not very thrilled about. Too easy to break, the light sensor would probably have been more durable. Another great engineering decision by Asus, going for the "Persistent Perfection" or a reasonable workaround to simulate it, LOL!
SmartAs$Phone said:
Easy to prove/disprove. O have tried it when I 1st got the Prime. Put it in the dock. Close it most of the way, leaving it open about an inch or so. Put your finger over the light sensor (about 2 inches to the left of the camera) It does NOT put it in sleep mode. Close it the rest of the way. It goes to sleep. Shine a bright halogen light in to the area at top of screen, after just cracking the tablet and doc apart a fraction. It does NOT come out of sleep. There seems to be a mechanical switch in the hinge. Which I am not very thrilled about. Too easy to break, the light sensor would probably have been more durable. Another great engineering decision by Asus, going for the "Persistent Perfection" or a reasonable workaround to simulate it, LOL!
Click to expand...
Click to collapse
while the light sensor would have been more durable, it would also prevent deep sleep mode as the OS would have to constantly read the state of the light sensor for keeping screen off and for turning it on immediately upon opening docked tablet.
Magnetic
I think the Prime has a magnetic open/close detection system.
In a hardware thread someone observed that the Prime will switch off the screen if a magnet is placed in the upper left quadrant. And since the dock is quite magnetic right of the touch pad it seems to fit. I never tried it with a magnet myself though.
SirGarry said:
Then how do you explain the listing of "Intersil isl29018 Proximity sensor"? Other apps list the same thing. Try it.
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Click to collapse
There use to be a GPS sensor listed in the specifications too. I'm guessing if it doesn't work - it will just mysteriously disappear.
SmartAs$Phone said:
Easy to prove/disprove. O have tried it when I 1st got the Prime. Put it in the dock. Close it most of the way, leaving it open about an inch or so. Put your finger over the light sensor (about 2 inches to the left of the camera) It does NOT put it in sleep mode. Close it the rest of the way. It goes to sleep. Shine a bright halogen light in to the area at top of screen, after just cracking the tablet and doc apart a fraction. It does NOT come out of sleep. There seems to be a mechanical switch in the hinge. Which I am not very thrilled about. Too easy to break, the light sensor would probably have been more durable. Another great engineering decision by Asus, going for the "Persistent Perfection" or a reasonable workaround to simulate it, LOL!
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Click to collapse
Eh, I think I'd hate using a proximity sensor for this. The explanations about magnets is interesting, and definitely not an easily-broken method.
Really though, I plan to use my touch screen even when docked and would be pissed trying to swype/tap/play anything and accidentally send the tablet to sleep.
If there is no light sensor how do you explain the "auto" brightness? It has to be sensing something from somewhere. Unless we're talking about something else here.... cuz i kinda just skimmed through the posts..... >_>
Hey guys,
I saw this app:
HTML:
https://play.google.com/store/apps/details?id=it.android.smartscreenoffpro
but couldn't get it to work on my tablet.
Do we have a proximity sensor to do that? Or does anyone know of one that's working?
What cover
What cover are you talking about?
Yup tried it out. Its an interesting idea but I didn't really like it that much. As depends on your wrist not touching the sensor which is quite unavoidable sometimes.
But its a nice concept. Kudos to the developer but the hardware just not optimized for it. Perhaps a better version will make me change my mind.
colint3 said:
What cover are you talking about?
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Umm well I can't find it on the website but it's a Sony one, hard plastic with like a felt inside that goes on the screen, flips over at the top and holds on to the back. If that makes any sense?
Where is the sensor located? There is auto brightness setting, so there is a sensor some where....
Sent from my Sony Tablet S using xda premium
ataraxist said:
Where is the sensor located? There is auto brightness setting, so there is a sensor some where....
Sent from my Sony Tablet S using xda premium
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Click to collapse
The front camera, I think.
colint3 said:
What cover are you talking about?
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Click to collapse
The point of that app is that it doesn't matter what kind of cover you have. It uses the proximity sensor to detect when a surface (such as the inside of a cover) is on the sensor and locks the screen. Quite useful, depending on the sensitivity and location of the proximity sensor.
agc93 said:
The point of that app is that it doesn't matter what kind of cover you have. It uses the proximity sensor to detect when a surface (such as the inside of a cover) is on the sensor and locks the screen. Quite useful, depending on the sensitivity and location of the proximity sensor.
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Click to collapse
Yeah, I just can't work out where the actual proximity sensor is, I couldn't get it to turn off with the app at all.
Did someone manage to install a working app to mesure blood pressure?
I think i have seen such a feature on an older Stratos rom.
skylow said:
Did someone manage to install a working app to mesure blood pressure?
I think i have seen such a feature on an older Stratos rom.
Click to expand...
Click to collapse
GreatFit + AmazMod have such feature if I'm not wrong, but not sure if it is implemented yet.
saratoga79 said:
greatfit + amazmod have such feature if i'm not wrong, but not sure if it is implemented yet.
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Click to collapse
None of them has this feature.
In some stores they say the watch can measure blood pressure.
I am pritty sure that it is possible to implement it.
Watches that say they measure BP optically are a con. You would need an inflatable cuff and a pressure transducer for proper Blood Pressure measurement.
BravoCharlie said:
Watches that say they measure BP optically are a con. You would need an inflatable cuff and a pressure transducer for proper Blood Pressure measurement.
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I know this fact and own a cuff. But I also use a fitnessband wich measures b/p also. I have to say, it is nearly exact.
skylow said:
I know this fact and own a cuff. But I also use a fitnessband wich measures b/p also. I have to say, it is nearly exact.
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Click to collapse
Yeah, I've seen some that claim that and they allow you to calibrate to your other meter so the readings look similar until your BP really goes high and the watch reading stays the same.
BravoCharlie said:
Yeah, I've seen some that claim that and they allow you to calibrate to your other meter so the readings look similar until your BP really goes high and the watch reading stays the same.
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Click to collapse
I have purchased a fitness band (P11) which can detect blood pressure through ppg and ecg.. and its quite accurate..
skylow said:
Did someone manage to install a working app to mesure blood pressure?
I think i have seen such a feature on an older Stratos rom.
Click to expand...
Click to collapse
I did some reading and it seems you can get relative accurate results if you calculate/calibrate you heart-rate vs blood pressure data. That is intresting.
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.
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Why has my wife's iphone never suffered then?
GroovyGeek said:
Why has my wife's iphone never suffered then?
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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?
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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?
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Click to collapse
That could have been somewhat funny if it even peripherally addressed the question.
blackhawk said:
There may be regional magnetic anomalies.
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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.
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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.
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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.
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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.
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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.
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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°.