gyroscope sensor for android

public void Onsensorchanged (Sensorevent event) { final float alpha = 0.8; GRAVITY[0] = Alpha * Gravity[0] + (1-alpha) * event.values[0]; GRAVITY[1] = Alpha * Gravity[1] + (1-alpha) * event.values[1]; GRAVITY[2] = Alpha * gravity[2] + (1-alpha) * event.values[2]; Linear_acceleration[0] = event.values[0]-gravity[0]; LINEAR_ACCELERATION[1] = event.values[1]-gravity[1]; LINEAR_ACCELERATION[2] = event.values[2]-gravity[2]; }The

Generally, Android phones use the client role to actively connect to the SPP protocol device (connect to the digital sensor of the bluetooth module). The connection process is as follows: 1. Use registerReceiver to register BroadcastReceiver to obtain Bluetooth status, search for devices, and other messages;2. Use BlueAdatper for search;3. Obtain the bluetooth device information (such as name, MAC, and imag

1. The positive and negative directions of the X, Y, and Z axes of the accelrator: When the mobile phone screen is placed horizontally up: (x, y, z) = (0, 0,-10) instead of (0, 0, 10)When the phone is lifted at the top, y decreases and the value is negative.When the mobile phone is lifted at the bottom: Y increases and is positiveWhen the right side of the mobile phone is lifted: X decreases and is negative.When the left side of the mobile phone is lifted: X increases and the value is positive

Android sensor (SENSOR_TYPE_ORIENTATION) SENSOR_TYPE_ORIENTATION is not recommended after android 2.2 !!! Mobile phone status Numerical status Value Range Mobile phone horizontal placement, top pointing to North The value of x, y, and z is 0. 0 Rotate horizontally counterclockwise X decrease 360 ~ 0 Clockwi

In 2.2, you can set the screen direction to reverse the horizontal screen: setrequestedorientation (8); because the system does not publish the setting of this parameter, but the screen_orientation_reverse_landscape parameter has been defined in the source code, however, the orientation of the screen cannot be fixed to reverse landscape screen or right landscape screen. When setting the screen direction to the Right horizontal screen, you must note that the activity needs to be set to

Recently, I have been working on a problem about gravity sensing, which involves the mobile phone's gravity sensing. I started to use a real machine for testing. The results have been tested for a long time and are not satisfactory, it has never been effective. In view of the trouble of using a real machine and connecting lines or something, I am going to use a simulated gravity sensor for the development of gravity sensing. I have searched a lot