Allegedly Leaked ‘Phosphorus’ iPhone 6 Chip Could Be a Barometric Pressure Sensor

The mysterious “Phosphorus” component isn’t Apple’s next-gen M7 coprocessor as originally suggested by the Chinese GeekBar. The “OSCAR” seen on the image is the codename of the M7 coprocessor introduced with the iPhone 5s, so from this perspective the pieces of the puzzle fall apart.

Bosch sensor

What does make sense is what a MacRumors reader familiar with such components highlighted in his comment: what the alleged iPhone 6 schematic leak uncovers is possibly a barometric pressure sensor.

The chip pictured has the part number BMP282. I’m 99.99% sure this is a Bosch barometric pressure sensor, similar to this part BMP280. Variants of one part often have slightly different part numbers- if Apple got Bosch to customize the chip for them with different packaging, or a slightly different measurement range, that would explain the difference in part number.

His comment is in line with previous rumours of a new atmospheric pressure sensor being included with the iPhone 6. He points to the Bosh component he says could be represented on the schematic: a BMP280 series chip.

The commenter, leecbaker, lists the key uses of the pressure sensor, which suggest that the iPhone 6 will come with enhanced localization features such as enhanced indoor navigation.

Here’s what Bosch says the BMP280 chip is commonly used for:
* Enhancement of GPS navigation (e.g. time-tofirst-fix improvement, dead-reckoning, slope detection)
* Indoor navigation (floor detection, elevator detection)
* Outdoor navigation, leisure and sports applications
* Weather forecast
* Health care applications (e.g. spirometry)
* Vertical velocity indication (e.g. rise/sink speed)

Spirometry is measuring breath/lung function.

This is the second time GeekBar has misinterpreted information revealed by the alleged iPhone 6 schematics. The first time was when they claimed that the leaked schematic uncovered that the iPhone 6 would have the same 1 GB of RAM as its predecessor. As others have pointed out, that image revealed completely different information regarding an aspect of the flash storage.

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