LSM6DSO.PDF

The event-detection interrupts enable efficient and reliable motion tracking and contextual awareness,

implementing hardware recognition of free-fall events, 6D orientation, click and double-click sensing, activity or

inactivity, stationary/motion detection and wakeup events.

The LSM6DSO supports main OS requirements, offering real, virtual and batch mode sensors. In addition, the

LSM6DSO can efficiently run the sensor-related features specified in Android, saving power and enabling faster

reaction time. In particular, the LSM6DSO has been designed to implement hardware features such as significant

motion detection, stationary/motion detection, tilt, pedometer functions, timestamping and to support the data

acquisition of an external magnetometer.

The LSM6DSO offers hardware flexibility to connect the pins with different mode connections to external sensors

to expand functionalities such as adding a sensor hub, auxiliary SPI, etc.

match the characteristics of the sensing element.

The LSM6DSO is available in a small plastic land grid array (LGA) package of 2.5 x 3.0 x 0.83 mm to address

ultra-compact solutions.

• 9 kybtes data buffering, data can be compressed two or three times

• Event-detection interrupts (fully configurable)

• Sensor hub

Tilt detection

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

accelerometer to achieve targets of both ultra-low power consumption and robustness during the short duration of

dynamic accelerations.

The Significant Motion Detection (SMD) function generates an interrupt when a ‘significant motion’, that could be

due to a change in user location, is detected. In the LSM6DSO device this function has been implemented in

hardware using only the accelerometer.

SMD functionality can be used in location-based applications in order to receive a notification indicating when the

user is changing location.

The LSM6DSO can be configured to generate interrupt signals activated by user-defined motion patterns. To do

this, up to 16 embedded finite state machines can be programmed independently for motion detection such as

glance gestures, absolute wrist tilt, shake and double-shake detection.

Definition of Finite State Machine

Finite State Machine in the LSM6DSO

The LSM6DSO works as a combo accelerometer-gyroscope sensor, generating acceleration and angular rate

output data. It is also possible to connect an external sensor (magnetometer) by using the Sensor Hub feature

(Mode 2). These data can be used as input of up to 16 programs in the embedded Finite State Machine

(Figure 2. State machine in the LSM6DSO).

All 16 finite state machines are independent: each one has its dedicated memory area and it is independently

executed. An interrupt is generated when the end state is reached or when some specific command is performed.