Understand how screen rotates Horizontal to vertical and vice versa through Gyroscope sensor
In the fast-paced world, we are tending to find new technologies everyday to ease our day to day hectic life. We are becoming very much dependent on the sensors being used in the phone for avoiding any kind of inconveniences comes in our way. Companies are attracting its customers with their new technologies being launched in their smart phones. Most commonly used sensor now a day is Gyroscope sensor also called Gyro.
Gyroscope Sensor is a navigational instrument consisting of a disk or wheel that spins rapidly about an axis like a top. The spinning motion keeps the axis fixed even if the base is turned in any direction, making the gyroscope an accurate navigational instrument and an effective stabilizing device.
Gyro sensor used to detect orientation of device (Smartphone). It means when phone is kept on plane horizontal area, it give reading as Zero. When you rotate your phone its reading changes through gyro sensor e.g. while playing many games, we need to move in all directions and if gyro sensor is not there in phone then you need to drag a finger on the touch screen to be able to move in the desired directions and that is very unfriendliness of the system. And at the same time gyroscope sensor allows you to simply rotate your phone around gravity for moving in any directions. It detects the motion and automatically moves to the desired point.
Features and Specification of Gyroscope sensor
With your fingers relieved from aiming and directing, they can do other things like shooting simply by taping the screen. This could also be done using the combination of accelerometer and built-in compass but we would like to have as much smoothness and preciseness as we can get in our life.
View a picture keeping your phone on plane surface. Now rotate the phone and observe. You will see that the picture also gets rotated as your phone (provided you have kept the rotation ON in your sensor settings). What underlying phenomenon happening is that the gyro sensor is constantly sending its orientation data to the display driver and based on certain orientation condition the display driver prepares the frame buffer in a certain way so that the picture appears to the user in a certain way (horizontal and vertical).
Differences between Accelerometer and Gyroscope
|Accelerometers in mobile phones are used to detect the orientation of the phone.||Gyro adds an additional dimension to the information supplied by the accelerometer by tracking rotation or twist.|
|Accelerometer measures linear acceleration of movement.||Gyro measures the angular rotational velocity.|