Avnet AES-ATT-M18QWG-SK-G, Руководство пользователя по оборудованию

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3.4.7 3D Accelerometer Sensor (LIS2DW12)
The LIS2DW12 is a 2017-released, ultra low-power, MEMS 3-axis smart accelerometer from
ST Micro. It has 16-bit output and can be configured (with 5 settings in either mode) to prioritize:

ultra-low power consumption (< 1 µA @ ODR = 12.5 Hz), or

very low-noise performance (down to 90
µg/√Hz)
Other features include:

Selectable acceleration full-scale range of ±2/±4/±8/±16 g

32-level embedded FIFO (for measurement buffering)

Thermal stability over the full -40 to +85 °C industrial temperature range

Embedded temperature sensor

1.8V operation and I/O levels

50 nA power-down mode

Dedicated internal engine for motion
and acceleration processing:
o
Free-fall wakeup
o
6D/4D orientation
o
Tap and double-tap recognition
o
Activity/inactivity recognition
o
Portrait/landscape detection
The LIS2DW12 is used as a slave device (address= 0011001 b7
) on the WNC module’s I2C
peripheral bus. The SA0 input of the LIS2DW12 device is tied high, but this signal is pinned-
out to test-point
SA0 to facilitate potential modification of (LSB) of the device I2C address
Table 10
– LIS2DW12 Interrupt Outputs
LIS2DW12 Pin Name WNC Pin Name Isolating Resistor
INT1 GPIO06 R48
INT2 GPIO07 R49
Both interrupt outputs are by default connected to the WNC module (
GPIO06 and GPIO07 )
If one or both of these WNC GPIOs are required for a different purpose, they may be
disconnected from the LIS2DW12 device by removing resistors
R48 and R49