Do you know which mobile sensors have what functions..?

Accelerometer

Used by apps to detect orientation of device and phone's movements, allowing features like shaking phone to change music.
 

Gyroscope

Works with Accelerometer to detect rotation of phone, for features like tilting phone to play racing games.
 

Digital Compass

Helps phone find the North direction, for map/navigation apps.
 

 

Ambient Light Sensor

Automatically sets the screen brightness based on surrounding light, and conserves battery life

 

 

Proximity Sensor

During a call, if the device is brought near the ears, it automatically locks the screen to prevent unwanted touch commands.