Hi I want to mount a small accelerometer on my finger and send the readings to an android app. Is there some sensor kit that might help me do this?
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Hey, guys!
I am working on a project using HTC magic which requires the data from the electronic compass, including both the accelerometer and magnetic sensor. But I find that there is a significant latency between the move of the phone and the trigger of the sensorChanged event. In other word, the acceleration and magnetic data obtained from sensor are updated about half of a second after my motion. And I have several questions about the problem as follow.
1. Are the orientation data computed by the acceleration and magnetic data? Or are there a physical sensor for orientation?
2. Does the latency result from the android API (using the event) or the physical limitation of the electronic compass?
3. It is said that the model of the electronic compass is AK8976A from Asahi Kasei. Does anybody have the datasheet or know the frequency of the sampling?
4. Any idea to improve the real-time experience?
Thank you in advance!
My phone already has ACCELEROMETER and COMPASS. Why would I need GYROSCOPE? Can somebody give me example of practical applications that use Gyro sensor that the other two cant handle?
thanx
good question. Gyro is an extension to the accelerometer. It help you move with the devise in the same time. I see it being used on google street view (when u turn left/right the map is turning too) and in some shooting games.
Turn left right? Isnt that covered by the compass?
Bump!
Plus about the Atrix 4G...
Accelerometer, still no games utilises 6dof, if there is, not practical (like walking while holding the phone)
I guess the gyroscope mainly assists the GPS info + Compass...
Take it as like this:
Gyroscope assists Compass in rotation speed ( so u get real time)
Gyroscope assists accelerometer in pre-calibration proccess... (+ shaking games)
So I still argue with games like Asphalt 6 not working with accelerometers...
Both Gyroscope and Accelerometer are Fused, or Fusion proccess (combing the raw data map) so it will be enough real time...
Though 6DOF experience using a gyro is too useless for its accuracy... It comes hand when you buy a 400+ bux gyroscope Like headtracking systems...
Can anybody tell me how to calibrate my phone s accelerometer? (Operating system is ics)
Hi,
like the Question Titel show i search for a way to turn the display on when i wave over the proximity sensor with my hand.
It works when i have want to take the display off, but not to turn it on.
Can anybody help me please?
Reply to very old post, but might be handy for future users: have you noticed the display off monitoring in the preferences? I think you need to enable the proximity sensor there.
hello, my px5 unit only has gps (no magnetometer or accelerometer) and it is difficult to know what direction to turn sometimes. when I use my phone as a navigation everything is super smooth, I can easily see which direction the car is turning etc... is it possible to get sensor data by bluetooth or wifi and use on hu unit? or is it possible to add accelerometer and magnetometer externally?