LSM6DS3TR-C datasheet(16/115 Pages) STMICROELECTRONICS

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Embedded low-power features

LSM6DS3TR-C

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DocID030071 Rev 3

Embedded low-power features

The LSM6DS3TR-C has been designed to be fully compliant with Android, featuring the

following on-chip functions:

 4 kbyte data buffering

–

100% efficiency with flexible configurations and partitioning

–

Possibility to store timestamp

 Event-detection interrupts (fully configurable):

–

Free-fall

–

Wakeup

–

6D orientation

–

Click and double-click sensing

–

Activity / inactivity recognition

 Specific IP blocks with negligible power consumption and high-performance:

–

Pedometer functions: step detector and step counters

–

Tilt (refer to Section 2.1: Tilt detection for additional information)

–

Significant motion detection



Sensor hub

–

Up to 6 total sensors: 2 internal (accelerometer and gyroscope) and 4 external

sensors

2.1

Tilt detection

The tilt function helps to detect activity change and has been implemented in hardware

using only the accelerometer to achieve both the targets of ultra-low power consumption

and robustness during the short duration of dynamic accelerations.

It is based on a trigger of an event each time the device's tilt changes. For a more

customized user experience, in the LSM6DS3TR-C the tilt function is configurable through:



a programmable average window



a programmable average threshold

The tilt function can be used with different scenarios, for example:

Triggers when phone is in a front pants pocket and the user goes from sitting to

standing or standing to sitting;

Doesn’t trigger when phone is in a front pants pocket and the user is walking,

running or going upstairs.

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