Hello,
My school have purchased a Xperia Arc beleiving that it comes with a Gyroscope sensor but after checking the specs at the sony website it doesn´t mention anything about it...
Can anyone tell me if it has gyro sensor?
It is crucial for us as we are doing our thesis about the use of the gyro for indoor positioning within android. So we need an android device which has one.
The phone hasn¡t arrived but in case it doesnt have gyro we need to cancell the order and look for an alternative.
Anyone???
Thanks
it has ;
Accelerometer
Compass
Magnetic Field sensor
which means yes... it does have gyroscope - just not called a gyroscope..!!
From the Apple iPhone4 Gyroscope demo, I think compass and accelerometer is suffice to build a gyroscope.
CMIIW
Related
when the nexus s is flat /horizontal the compared seems fairly accurate. However if I point the device say due east and slowly tilt the device 90° in the vertical direction, still pointing east, the reading is off by about 15°.
This is very noticeable when I use the compass app or google sky maps. anyone else noticed this?
Sent from my Nexus S using XDA App
I have noticed the compass is terrible and noisy in general. There's supposed to be a new sensor fusion API, but as far as I can tell that is currently broken and reports NaNs...
There are many factors that could contribute to your compass being wrong, the first being that compasses are wrong! The first, Magnetic Declination is the offset between magnetic north and true north. Mine is about -8 degrees.
wikipedia.org/wiki/Magnetic_declination
The second, and probably more important factor is the Magnetic Inclination: the actual angle of the magnetic field relative to the ground. Here in Ohio, the field is mostly 60% or so vertical!
wikipedia.org/wiki/Magnetic_inclination
If the coders do not correct for the actual rotation of the sensor, then what you see is the large Z axis (coming out of the screen) become the new Y measurement, while X stays the same. Since the first trivial calculation of heading is: atan2(y,x) you can see what happens when y becomes much larger, but x stays the same.
So it all depends on if they are using the accelerometers/gyros to correct for orientation and then calculate heading or at the very least relabel axes at some point.
You can read more about what Android actually provides developers here
developer.android.com/reference/android/hardware/SensorEvent.html
But without access to the source code, I can't know what's actually causing your problem.
I have the same issue
please report this bug at here:
http://www.google.com/support/forum/p/Google+Mobile/thread?tid=37f2dd3261d20d1f&hl=en
and add a star if you have this issue as well here:
http://code.google.com/p/android/issues/detail?id=15999
check my issue video here:
http://www.youtube.com/watch?v=l-9lehX8u2U
Google please fix this!!!
Hello everyone,
Does anyone knows which technology uses the Desires Z compass.
Is it a hall effect sensor (without raw magnetic pieces)?
I got a case with a magnetic closure and I m affraid with time that it might
demagnetize the sensor.
Thank you for your replies.
Just installed this app:
https://market.android.com/details?id=com.itsme4ucz.screenoff
But can't seem to find any info on where this sensor is located?
Xoom doesn't have a proximity sensor (the intended purpose of including one is to prevent you from pushing buttons with your face)
I think its next to the front camera but have you tried just moving your hand around the xoom? I'm about to install that app, I'm curious now.
sent from the honey moto
Pretty sure sangreal told it like it is.
sent from the honey moto
fob burt said:
Pretty sure sangreal told it like it is.
sent from the honey moto
Click to expand...
Click to collapse
there isn't a proximity sensor, but there is an ambient light sensor.
yep, there are not prox sensors on tablets
what you need is this app:
http://forum.xda-developers.com/showthread.php?t=976805
we are nearing release and will be on the market within a few days!
Oh no, say it isn't so! They could at least added it for motion sensing in lieu of adding motion sensors.
Sent from my Xoom using XDA App
sangreal06 said:
Xoom doesn't have a proximity sensor (the intended purpose of including one is to prevent you from pushing buttons with your face)
Click to expand...
Click to collapse
We could use a proximity sensor to show an auto hidden clock/app bar.
Hello, I was wondering if anyone knew what the sensors on the fron of the galaxy s4 are. It obviously has a camera, and one is a proximity sensor. I think one is a light sensor, but whats the 4th?
Anyone know? Is it something for motion tracking? (and if so is there an api for it?)
(On an unrelated note, is there any api for the hover above the touchscreen?)
Thanks. I'm just curious. It seems like these phones have more sensors that there are things to sense lol. (seriously does a phone need a pressure sensor and barometer? )
firesoul453 said:
Hello, I was wondering if anyone knew what the sensors on the fron of the galaxy s4 are. It obviously has a camera, and one is a proximity sensor. I think one is a light sensor, but whats the 4th?
Anyone know? Is it something for motion tracking? (and if so is there an api for it?)
(On an unrelated note, is there any api for the hover above the touchscreen?)
Thanks. I'm just curious. It seems like these phones have more sensors that there are things to sense lol. (seriously does a phone need a pressure sensor and barometer? )
Click to expand...
Click to collapse
Sensor for air gestures.
Here. Pretty cool picture with lots of info about the sensors on the GS4. As always, GOOGLE SEARCH FIRST!!
Joe0113 said:
Sensor for air gestures.
Click to expand...
Click to collapse
Oh so it does have a dedicated one. People on the internets seemed to think the gestures were combinations of the camera and proximity sensor.
But is there anymore info about it? I would love to know more details. And any api?
firesoul453 said:
Oh so it does have a dedicated one. People on the internets seemed to think the gestures were combinations of the camera and proximity sensor.
But is there anymore info about it? I would love to know more details. And any api?
Click to expand...
Click to collapse
I edited/updated my post... check it out!
Hi,
I'm curious to know wich sensors are embeded into your Tegra Note.
I've read on the web the TN has proximity sensor. But mine not. So I'm asking if it's normal or not or if it' a fail?
Or if it's manufacturer dependent. My TN is branded Zotac.