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if there is no hardware support (sensor) is present in device That's your mistaken assumption. Even dumbphones contain digital thermometers, to allow them to protect themselves against overheating when charging. Most smartphones will contain more than one temperature sensor: one in the battery, to detect if the battery is overheating, and one attached ...


Most Android Devices have a Geomagnetic Field Sensor built in. This sensor provides raw field strength data (in μT) for each of the three coordinate axes. You can also use theese values to program things like Metal Detectors. I programmed one once, if you're interrested in source code let me know.


I looked through the Play Store where i found PocketSensor which says in its description PocketSensor uses your phone's built-in proximity sensor to automatically lock the phone when it is put in a pocket. Example: If you want the sensor to trigger only when the device is being held straight upright (for front pockets) or pointing downwards (for ...

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