title: Mobile phone sensors
body: <p>After some hours of searching I'm so confused, so I'll tell now what I learned, so please correct me if I was wrong :</p>
  
  <p>Light Sensor: surrounding light</p>
  
  <p>Magnetic Sensor: I can get the north location.</p>
  
  <p>Accelerometer Sensor: the gravity X Y Z , earth gravity or what ever acceleration .</p>
  
  <p>Proximity Sensor: just like the parking car sensors.</p>
  
  <p>Orientation Sensor: Tells the X Y Z degrees form their axis.</p>
  
  <p>I've tried those sensors using some apps from android market like "My sensors", and I can confirm that <strong>accelerometer Sensor can't feel if you rotate your phone</strong> in position over a table. While orientation Sensor seems to catch all the moves. Now I can conclude that compass app uses the magnetic sensor to see where is the north, then orientation sensor to know where are you heading with your device, right?</p>
  
  <p>switching between portrait and landscape modes use "Accelerometer Sensor" and checks the earth gravity on which axis.right?</p>
  
  <p>Q1:so if everything is ok, what is "Gyroscope"? is it same as "Orientation Sensor"?</p>
  
  <p>Q2:is Orientation Sensor avalible on most of the devices?</p>
  
  <p>Q3:what other uses of Orientation Sensor?</p>
  
  <p><strong>Q4</strong>:why most of the websites <strong>even wikipedia</strong> says thet Orientation Sensor == Accelerometer Sensor?</p>
  
  <p>-Rami</p>