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What is the Hall Sensor on a Mobile Phone? What are the purposes?
This is a special sensor used to implement the leather cover function of a mobile phone. The Hall sensor is a magnetic field sensor made based on the Hall effect. Nowadays, many mobile phones are equipped with leather cases, and the screen can be turned off automatically when the leather cases are closed. This is the function of the Hall sensor. If the handset is equipped with the Hall sensor and has a built-in magnet inside the leather cases, the screen can be turned off when the leather cases are closed. When the flip cover or the phone case is closed, the magnetic component is close to the hall sensor. The hall sensor detects the signal, and shuts down the screen or switches to the special window position. Otherwise, the screen is turned on.
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