Thursday, November 10, 2011

Siri Ambient Light Sensor

MJ from iFixit discusses the difference between the operation of the infared ambient light sensor for the iPhone 4S as compared to the iPhone 4. She is always fun to look at listen to!

During our iPhone 4S teardown, iFixit buddy Markus noted that the new iPhone had a rather unusual-looking black component next to the ambient light sensor. We didn't make much of a fuss about it at the time since we were knee-deep in disassembly pictures, but the little black box certainly piqued our curiosity. Now that the teardown is wrapped up, we've re-opened the mystery and made a neat discovery about the 4S: that black component is an infrared LED, and the little bugger almost always wants to know if you're nearby.

Here is the teardown of the iPhone 4S if you missed it...

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