What is a Hall Sensor and how does it work in phones?

1. 1. A hall sensor is an electronic device fitted in a phone to determine the proximity, speed, and location of a device’s mechanical system.
   2. It does this by detecting varying magnetic fields.
   3. It then converts the variance into electronic signals that are relayed to the phone’s processor.
   4. A hall effect sensor does not have to come in contact with a physical element to detect and relay information.
   5. Hall sensors are important in the Global Positioning System (GPS) function of a phone or even a vehicle.

Also read: What is sunlight mode and how does it work in phones?

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