[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

The Brazilian iPhone Blog notes that this feature would be accessible via the Settings app, where it can be enabled and disabled per your preference. The current iPad does have an ambient light sensor ...

DarkModeBuddy runs in the background monitoring the ambient light readings from the same sensor that automatically adjusts your screen’s brightness. When the ambient light drops below a threshold you ...