Sensors ToolKit provides useful tools using your cell phone's features and sensors.


AccelerometerSensor
Acceleration X: 0 when the phone is at rest on a flat surface, positive when the phone is tilted to the right (i.e., its left side is raised), and negative when the phone is tilted to the left (i.e., its right size is raised).
Acceleration Y: 0 when the phone is at rest on a flat surface, positive when its bottom is raised, and negative when its top is raised.
Acceleration Z: Equal to -9.8 (earth's gravity in meters per second per second when the device is at rest parallel to the ground with the display facing up, 0 when perpendicular to the ground, and +9.8 when facing down. The value can also be affected by accelerating it with or against gravity.
GyroscopeSensor
Measures angular velocity in three dimensions in units of degrees per second.



Barometer Sensor
Uses an average sea level pressure to provide the altitude & pressure via the barometer sensor.



Orientation Sensor



Roll : 0 degrees when the device is level, increasing to 90 degrees as the device is tilted up onto its left side, and decreasing to −90 degrees when the device is tilted up onto its right side.
Pitch : 0 degree when the device is level, increasing to 90 degrees as the device is tilted so its top is pointing down, then decreasing to 0 degrees as it gets turned over. Similarly, as the device is tilted so its bottom points down, pitch decreases to −90 degrees, then increases to 0 degrees as it gets turned all the way over.
Azimuth : 0 degrees when the top of the device is pointing north, 90 degrees when it is pointing east, 180 degrees when it is pointing south, 270 degrees when it is pointing west, etc.
Proximity Sensor
Measures the proximity of an object (in cm) relative to the view screen of a device. This sensor is typically used to determine whether a handset is being held up to a person's ear; i.e. lets you determine how far away an object is from a device. Many devices return the absolute distance, in cm, but some return only near and far values. In this case, the sensor usually reports its maximum range value in the far state and a lesser value in the near state. It reports the following value:

Distance: The distance from the object to the device.
Speech to Text
Listens to the user speaking and converts the spoken sound into text using Android's speech recognition feature.



Text to Speech
Speaks a given text aloud.


Battery Status:
Provides information on battery's health, status, level, voltage, temperature & whether it is plugged in or not.