[Q] Location of Ambient Temperature Sensor - Verizon Samsung Galaxy S 4

As the title suggests, I'm wondering where the ambient temperature sensor is located on the device. I've read conflicting things, so I'm not sure if there is actually a dedicated 'ambient' temperature sensor or if the reading is the result of some calculation. Either way, it doesn't seem to be wholly accurate.
Also, what apps are you using to see the ambient temp sensor's reading? I'd like to hear about an app that has a clean-looking, low memory widget I could use to get a quick glance at ambient temp, pressure, and humidity. Currently using 'Temperature', which has a barebones widget that only displays the temp.
Thanks in advance.

Dont know where the sensor is. Search ambient temperature in the app store. I will say its not very accurate tho because any heat generated by the device causes it to read higher. The application lists everything you want but the widget just shows the temp.
Sent from my SCH-I545 using Tapatalk 2

hexitnow said:
Dont know where the sensor is. Search ambient temperature in the app store. I will say its not very accurate tho because any heat generated by the device causes it to read higher. The application lists everything you want but the widget just shows the temp.
Sent from my SCH-I545 using Tapatalk 2
Click to expand...
Click to collapse
That's actually the app I got. Kinda weird, it's title changed to just 'Temperature' once installed (it's the one with the C° icon).
I'm much more curious about the humidity sensor. It would be neat to be able to leave my phone in a guitar case for a couple minutes and view a graph of the average humidity in there and A / B that with the room the case is in, since humidity will affect the wood! :fingers-crossed:

Related

[Q] Temperature sensor using Z-Device Test.

I just Download Z-Device test and everything is ticked apart from NFC (obviously) and Temperature sensor?
I was wondering why my Temperature Sensor had an X instead of a tick. Does this mean it's not working?
Can somebody else who uses this app confirm if they get the same results.
Thanks.
Maybe the software is not reading the hardware correctly.
Tinderbox (UK) said:
Maybe the software is not reading the hardware correctly.
Click to expand...
Click to collapse
That's why I wanted to know other peoples results to see if it was the app or my phone?
I just installed Z-Device myself and the temperature sensor test is crossed out for my to, I must just be a fault in the software, maybe you should report it, As i have seen the temperature sensor working fine in all the cpu apps i have downloaded.
Tinderbox (UK) said:
I just installed Z-Device myself and the temperature sensor test is crossed out for my to, I must just be a fault in the software, maybe you should report it, As i have seen the temperature sensor working fine in all the cpu apps i have downloaded.
Click to expand...
Click to collapse
Thankyou for checking, much appreciated.
What other apps are there that are similar?
Z-Device could be looking for an external temperature sensor that measures the temperature of the environment.
I use an app called elexir to chek all my sensors and 2 sensors are shown as not installed which is pressure and temperature sensors. so i assume those sensors are for ambient temp & pressure.
Sent from my GT-I9100 using Tapatalk
simacca said:
I just Download Z-Device test and everything is ticked apart from NFC (obviously) and Temperature sensor?
I was wondering why my Temperature Sensor had an X instead of a tick. Does this mean it's not working?
Can somebody else who uses this app confirm if they get the same results.
Thanks.
Click to expand...
Click to collapse
Hi simacca,
I'm part of the developers team of Z-DeviceTest .
Answering your question:
All models ussually comes with a temperature sensor for battery, due that a very high temperature (>80º Celsius) could provoque a battery degradation, even explosion in rare cases.
The sensor is used to minimice sensor & CPU usage in order to get the battery colder or even, automatic turn off the phone in overheat events.
Z-DeviceTest controlls this sensor that you could find in battery screen test as "Temperature:".
The temperature sensor showed on main screen, is an extra sensor always included on digital compass sensor, due that the physical principle used to measure magnetic fields (Hall effect) is higly temperature dependant.
Depending on the ROM you have instaled, the access to this temperature sensor is granted or not, and if the O.S., could access and read the sensor, we detect it and show the measure, or not.
I hope to have helped you with this issue.
Best Regards.
zausan said:
Hi simacca,
I'm part of the developers team of Z-DeviceTest .
Answering your question:
All models ussually comes with a temperature sensor for battery, due that a very high temperature (>80º Celsius) could provoque a battery degradation, even explosion in rare cases.
The sensor is used to minimice sensor & CPU usage in order to get the battery colder or even, automatic turn off the phone in overheat events.
Z-DeviceTest controlls this sensor that you could find in battery screen test as "Temperature:".
The temperature sensor showed on main screen, is an extra sensor always included on digital compass sensor, due that the physical principle used to measure magnetic fields (Hall effect) is higly temperature dependant.
Depending on the ROM you have instaled, the access to this temperature sensor is granted or not, and if the O.S., could access and read the sensor, we detect it and show the measure, or not.
I hope to have helped you with this issue.
Best Regards.
Click to expand...
Click to collapse
Thanks for the reply.
I am using the stock unbranded KE7 XEU rom.
Maybe when I get the new update that's due out any time it will fix the problem.
You are wellcome.
¿Could you please confirm back if you can read battery temperature trough the battery screen test of Z-DeviceTest?
Thanks in advanced.
Best regards.
zausan said:
You are wellcome.
¿Could you please confirm back if you can read battery temperature trough the battery screen test of Z-DeviceTest?
Thanks in advanced.
Best regards.
Click to expand...
Click to collapse
Yes I can see the battery temperature
Thank you again !
Is there an apk of z-test, I have no wifi or data access (so can't get it from the market) but need to check my wifi status as trying to turn it on just returns "error".
Thanks
Matt
zausan said:
You are wellcome.
¿Could you please confirm back if you can read battery temperature trough the battery screen test of Z-DeviceTest?
Thanks in advanced.
Best regards.
Click to expand...
Click to collapse
Works for me too , using Cognition 1.07 Rom.
msiviter said:
Is there an apk of z-test, I have no wifi or data access (so can't get it from the market) but need to check my wifi status as trying to turn it on just returns "error".
Thanks
Matt
Click to expand...
Click to collapse
im not allowed to post links so...
www[dot]4shared[dot]com/file/7y7UXjvt/Z-Device_Test_v167.html
I'm using Andro Sensor app (market) for temp reading, works very well.

[Q] What is the lowest value your light sensor reads?

I found a thread on hacking auto brightness values to save battery life. In the process I noticed my light sensor's lowest value is higher than HTC's first few values in the stock auto brightness array. This means my EvoLTE doesn't even use the lowest couple of auto brightness steps because the sensor never reads that low.
That got me wondering whether my phone was defective or if this is normal.
The lowest value my sensor will return is 90. I would love to have a few people install the "AndroSensor" app from the market, cover up their light sensor (top left bezel area), and give me their light sensor number reading. Thanks in advance!
90 here
Sent from my EVO using xda premium
ckoadiyn said:
90 here
Sent from my EVO using xda premium
Click to expand...
Click to collapse
Same here.
Thanks for the quick replies! So it seems this is more a software calibration issue than a hardware problem. ROM developers can easily work around this in their auto brightness arrays by considering 90 as the floor and working up from there.
What are you folks using to read this value?
gpz1100 said:
What are you folks using to read this value?
Click to expand...
Click to collapse
"AndroSensor" app from the market.

Pressure sensor battery drain on 100% that you are probably unaware of all this time.

Use gsam battery minor monitor and click apps, view sensor usage, and click android system.
For the amount of time you phone has been discharged, the pressure sensor has been on and active 99 - 100% of the time.
Now, I've tried to find ways to doable this useless pressure sensor (also know as barometer), but to no hope.
I wonder if we can work out how to disable this useless sensor..
The pressure sensor model is BMP180: http://www.bosch-sensortec.com/content/language1/downloads/Flyer_BMP180_v5_032011_web.pdf
Sent from my XT910 using xda app-developers app
the razr does not even have a pressure sensor...
Killer2k8 said:
the razr does not even have a pressure sensor...
Click to expand...
Click to collapse
+1
Andrey G. said:
+1
Click to expand...
Click to collapse
+2
XT910 - Kexec JB
pressure=DOES NOT MEAN PRESSURE SENSOR ACTIVE TIME AT ALL
means just ... working time!
Hoax here
Inviato dal mio Rasoio Motorola
Killer2k8 said:
the razr does not even have a pressure sensor...
Click to expand...
Click to collapse
You are 100% wrong. I don't feel like digging around on the Web for 20 minutes to find the links, but I did do so a few months ago and found that the hardware for both a barometer and FM radio are both definitely present in all RAZRs, just not implemented in software.
iolinux333 said:
You are 100% wrong. I don't feel like digging around on the Web for 20 minutes to find the links, but I did do so a few months ago and found that the hardware for both a barometer and FM radio are both definitely present in all RAZRs, just not implemented in software.
Click to expand...
Click to collapse
I agree with this
Sent from my HTC Sensation using Tapatalk 2
Thread Moved​
As OP contains no development​
I've been looking at this as well the last few weeks as a possible cause for my reduced battery drain. Ignore the pressure, it's the accelerometer on all the time that I'm curious about. In gsam you'll notice that accelerometer and pressure are listed, also, accelerometers can be used for pressure also. (currently doing that at work ) However looking at the datasheet and current draw, you would hardly notice the drain from the sensor.
I have noticed that keeping the facebook app to update every hour BUT with all the push stuff switched off in notifications, ie messages, wall alerts etc has reduced my current consumption by around 30mA. I'm currently keeping my eye on this.

Best brightness app?

If you have an Amaze then you know that the secret to long battery life is minimizing screen brightness. Problem is the default auto-brightness levels are brighter than needed and there is no way to adjust.
I recently installed Lux which allows you to customize the auto brightness curve. This should theoretically extend battery life. I'll report what I find here on this thread.
Meanwhile one thing I noticed.... In Lux you can monitor the level reported by the phones built in light sensor. On my Amaze I get really strange readings. There are four levels: 90, 320, 640, 11000. Really? With careful shading of the sensor I was able to get a reading of 2400 once. 11000 was reported even in shade on a cloudy day.
But it seems like the sensor doesn't read light levels well at all. There isn't enough granularity and the calibration is way off.
Anyway if we can fix it or address it, that should make a real difference in the battery life of the device.
Sent from my HTC Ruby using Tapatalk 2
I use elixir 2 and the personal add on.. I set my icon/widget to whatever percentages I want.. Then tap it till its right for my environment
e-Sex.. All of the carpral none of the tunnel
Use screen filter from play.. works great..
Sent from my Amaze using xda app-developers app
This one is pretty awesome.. "Display Brightness".. https://play.google.com/store/apps/details?id=rubberbigpepper.DisplayBrightness&hl=en
You can put a 'slider' anywhere you want and simply slide it up and down to change the brightness to the exact levels you want.
Works great an you can customize it quite a bit. :good:
It's shown in on the top in the screenshots at the link, but I always put it on the right hand side, a little higher than mid-way, and I make it translucent grey so you cant even really see it unless you're looking for it.
That's the free version, I have the Pro version and it's worth it. lol

Galaxy S4 Thermometer [beta]

Galaxy S4 Thermometer App v1.2
shows air temperature in both Centigrade and Fahrenheit
shows relative humidity and ambient humidity
shows dew point
Recent Changes
Galaxy S4 AirView implemented to show help when hovering finger
Switch Centigrade to Fahrenheit and vice versa by touch the value.
Advertisement related problems fixed. now ads shows fine without disturb the graph.
Product Updates frequency
* twice or thrice per week
Final ad-free paid version will be free for XDA members before we publish in PlayStore.
Giving it a go.
Sent from my SCH-I545 using Tapatalk 4
---------- Post added at 10:27 PM ---------- Previous post was at 10:24 PM ----------
Will you be adding widgets in the future maybe?
Sent from my SCH-I545 using Tapatalk 4
seems to be working, thanks, question does the battery heat affect the temperature output??
I like it.
Any chance of being able to switch to fahrenheit rather than metric?
MOS95B said:
I like it.
Any chance of being able to switch to fahrenheit rather than metric?
Click to expand...
Click to collapse
It says the fahrenheit below the larger celcius. It would nice to switch f to the larger display, however.
Really liking the beginning of this app though. We basically have a personal weather station in our hands, great to see someone developing a accurate app.
Sent from my SCH-I545 using Tapatalk 2
yes, somehow. because the temperature sensor is just next to the large physical home button. so it affect little by the hand temperature as well as little on battery heat temperature. battery heat mostly blocked by the plastic seperator between sensor and battery. but if you play games or work on GPU then it increase the temperature in all parts in smartphone and it affect the sensor alot.
For running a weather station app or accurate temperature, you need to close all apps and put phone in table for 5 mins for better accurate reading.
poeypresents said:
seems to be working, thanks, question does the battery heat affect the temperature output??
Click to expand...
Click to collapse
Sanris I'm a fan. It's been consistently around 1 degree warmer than what my traditional thermometer outside and cheap digital inside say. Thanks for this.
Sent from my SCH-I545 using Tapatalk 2
reggie cheeks said:
Sanris I'm a fan. It's been consistently around 1 degree warmer than what my traditional thermometer outside and cheap digital inside say. Thanks for this.
Sent from my SCH-I545 using Tapatalk 2
Click to expand...
Click to collapse
Works nice, one request would be to make the text a bit larger on the graphs, my old eyes have a hard time reading it.
thanks for the good work.
I will try it out :good:
Works well. Thanks.
Nice can you make an option for Fahrenheit only
Sent from my GT-I9505G using xda premium
---------- Post added at 10:36 AM ---------- Previous post was at 10:35 AM ----------
My s4 stays extremely hot all the time. Will that make the temp rise on this app
Nvm seen where u had answered this
Sent from my GT-I9505G using xda premium
Thanks!
updates
v1.3 update for verizon, at&T , T-mobile versions
splash screen implemented for my sponsers
changed y-axis font size
few optimizations implemented
changed font sizes for C & F
New version looks good. Dewpoint is only in Celsius though, maybe you could add Fahrenheit as well? I like having both C/F temps displayed.
Looks nice, but for some reason temperature seems high about +10 f... Maybe my case? Neo hybrid...
Sent from my SCH-I545 using Tapatalk 4
I'm at almost 20 over seemed closer before update.
sent from Samsungs.sg4.sbreen94s.hyperdrive
There is no changes in source code on that reading area. I worked only on ui and other minor fixes. So the problem may be any other thing.
I also working on calibration settings. Once you calibrate readings it shows the adjusted value always for most accurate readings.
viewers please continue discussion on following thread only
http://forum.xda-developers.com/showthread.php?p=44771813
i plan to close this thread soon.

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