1. SENSORS

2. SENSORS USED IN CELLPHONES • Proximity sensor • Ambient light (ALS) • Global positioning system (GPS) • Accelerometer • Compass • Gyroscope

4. PROXIMITY SENSOR • Very useful in touch based Mobile Phones. While on call and you bring the device near your ear, Proximity Sensor detects it and can turn off the screen to avoid accidental touch of the screen by ear.

6. PROXIMITY SENSOR

7. AMBIENT LIGHT (ALS) • An ambient light sensor to portable devices such as tablets, smart phones, and laptops extends battery life and enables easy-to-view displays that are optimized to the environment.

8. AMBIENT LIGHT (ALS)

10. GLOBAL POSITIONING SYSTEM (GPS) • The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications.

12. GLOBAL POSITIONING SYSTEM (GPS)

13. ACCELEROMETER • The accelerometer in mobiles (like the iPhone) is used to measure the orientation or vertical and horizontal positioning of the phone. The most basic application of this is the device knowing when to alternate the view of the screen depending on how you are holding it. 

15. ACCELEROMETER

16. COMPASS • The digital compass that's usually based on a sensor called magnetometer provides mobile phones with a simple orientation in relation to the Earth's magnetic field. As a result, your phone always knows which way is North so it can auto rotate your digital maps depending on your physical orientation.

18. COMPASS

19. GYROSCOPE • A gyroscope is a device for measuring or maintaining orientation, based on the principles of angular momentum.

21. GYROSCOPE

22. MADE BY • GROUP: • SHAHZAIB YOUNUS • ARHAM IQBAL • KAINAT NAKHUDA • OSAMA KARIM KIDWAI