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iPhone 6 'Phosphorus' Component Likely a Barometric Pressure Sensor, Not Next-Generation M7

Earlier today, Weibo user GeekBar continued his leaks of claimed wiring schematics of iPhone 6 components with a new "Phosphorus" (http://www.macrumors.com/2014/08/25/m7-successor-phosphorus/) component that was interpreted as the next-generation version of Apple's M7 co-processor. The M7 collects and tracks motion data from various sensors in the iPhone 5s, iPad Air, and Retina iPad mini, and with the iPhone 6 rumored to be including a number of new health- and fitness-related sensors, a more powerful version of the M7 seems possible for the new device.
 
 But according to MacRumors forum poster leecbaker (http://forums.macrumors.com/showpost.php?p=19522239&postcount=18), who is clearly familiar with these types of components, the item depicted in the schematic is not a next-generation M7 and actually appears to be a barometric pressure sensor. The iPhone 6 has been rumored (http://www.macrumors.com/2014/03/17/iphone-6-temperature-pressure-humidity/) to include a number of new environmental sensors such as an atmospheric pressure sensor (http://www.macrumors.com/2014/06/18/iphone-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 (http://www.bosch-sensortec.com/de/homepage/products_3/environmental_sensors_1/bmp280/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.

(http://cdn.macrumors.com/article-new/2014/08/bosch_bmp280.jpg)<center>Bosch's BMP280 barometric pressure sensor</center>
 leecbaker goes on to highlight a number of applications for that Bosch pressure sensor, including GPS and indoor/outdoor navigation enhancement, weather forecasting, altimetry, and spirometry, the lung function measurements that were added to Apple's Health app (http://www.macrumors.com/2014/08/04/ios-8-beta-5-tidbits/) in a recent iOS 8 beta.
 
 Another MacRumors poster, kdarling, corroborates (http://forums.macrumors.com/showpost.php?p=19522314&postcount=30) leecbaker's conclusions, noting that the pins on the Bosch sensor match those outlined in the schematic. He also notes (http://forums.macrumors.com/showpost.php?p=19522555&postcount=44) that the BMP series is limited to pressure sensing and does not include the humidity and temperature sensing capabilities found in Bosch's BME series (http://www.bosch-sensortec.com/de/homepage/products_3/environmental_sensors_1/bme280/bme280_1) of sensors.
 
 Assuming this new information is correct, and it certainly appears to make sense, this marks the second time a component leaked by GeekBar has been incorrectly identified. The poster had previously claimed a schematic showed the iPhone 6 carrying the same 1 GB RAM (http://www.macrumors.com/2014/08/18/iphone6-schematic-1gb-ram/) found in previous A-series chips, but that was quickly revealed to be a reference to an aspect of flash storage rather than RAM.
 
 (Thanks, @anexanhume (http://twitter.com/anexanhume/status/503934199494352897)!)
 
 
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Source: iPhone 6 'Phosphorus' Component Likely a Barometric Pressure Sensor, Not Next-Generation M7 (http://www.macrumors.com/2014/08/25/iphone-6-phosphorus-pressure-sensor/)