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RedDeerGuy1's avatar

How does my Motorola Android smartphone sense movement?

Asked by RedDeerGuy1 (24649points) October 29th, 2022

It lights up when I walk near it. Also It doesn’t when it is face side down.

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2 Answers

LuckyGuy's avatar

There is a proximity sensor mounted on the display face. It is emitting infrared light and looking for a reflection back. It’s not very accurate but really does not need to be.
Even though its current draw is small I consider it a waste of battery power. The internal accelerators should be enough. Touch your phone and it wakes up.

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