A sensor hub is a microcontroller unit/coprocessor/DSP set that helps to integrate data from different sensors and process them. This technology can help off-load these jobs from a product's main central processing unit, thus saving battery consumption and providing a performance improvement.
Intel has the Intel Integrated Sensor Hub. Starting from Cherrytrail and Haswell, many Intel processors offer on package sensor hub. The Samsung Galaxy Note II is the first smart phone with a sensor hub, which was launched in 2012.
Examples Some devices with Snapdragon 800 series chips, including HTC One (M8), Sony Xperia Z1, LG G2, etc., have a sensor hub, the Qualcomm Snapdragon Sensor Core, and all HiSilicon Kirin 920 devices have sensor hub embedded in the chipset with its successor Kirin 925 integrated an i3 chip with same function into it. Some other devices that are not using these chips but with a sensor hub integrated are listed below:
Brands Product Chips Apple Apple iPhone 5s Apple M7 co-processor with Apple A7 SoC(NXP LPC18A1) Apple iPad Air iPad Mini (2nd generation) Apple iPhone 6 / 6 Plus Apple M8 on Apple A8 SoCiPad Air 2Apple M8 on Apple A8X SoC Apple iPhone 6s / 6s PlusApple M9 on Apple A9 SoCiPad ProApple M9 on Apple A9X SoCApple iPhone 7 / 7 PlusApple M10 on Apple A10 Fusion SoCApple WatchApple S1 SiPApple Watch Series 2Apple S2 SiP Google Nexus 6P Android Sensor Hub Nexus 5X Pixel CHRE V2 with GPS/Wi-Fi/BT Pixel XL Meizu Meizu MX3 Atmel AVR UC3L microcontroller Microsoft Microsoft Surface Atmel's sensor hub Motorola Motorola Droid Ultra Motorola X8 Mobile Computing Systemincluding TI MSP430 and TI C55x Motorola Droid Maxx Motorola Droid Mini Motorola Moto XMotorola Moto E 2nd GenMotorola Moto G 3rd GenOnePlusOnePlus 5OnePlus 5T Samsung Samsung Galaxy Note2 Atmel AVR UC3L microcontroller Samsung Galaxy S4 Atmel AVR microcontroller-based sensor hub solution
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