STEVAL-MKI008V1 STMicroelectronics, STEVAL-MKI008V1 Datasheet - Page 35
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STEVAL-MKI008V1
Manufacturer Part Number
STEVAL-MKI008V1
Description
BOARD EVAL ACCELEROM LIS302ALK
Manufacturer
STMicroelectronics
Series
MEMSr
Datasheet
1.STEVAL-MKI009V1.pdf
(42 pages)
Specifications of STEVAL-MKI008V1
Sensor Type
Accelerometer, 3 Axis
Sensing Range
±2g
Interface
Analog
Sensitivity
0.440 V/g
Voltage - Supply
3 V ~ 3.6 V
Embedded
No
Utilized Ic / Part
LIS302ALK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6246
UM0701
7.6
7.6.1
Figure 20. STM32-MEMS LCD demonstration application running on
Application tips: inclination measurement
In this application, the acceleration is used to measure an inclination. This inclination is
related to the angle achieved by the gravity’s direction. Thus, if the device is put horizontally,
the gravity will induce a 1 g value on the z axis and the acceleration measured on the other
two axes will be equal to 0, meaning no angle (0°), no inclination.
Description
When there is no movement, the acceleration by default is called gravity and is always
present. On the surface of the earth, the gravity is around 9.81 m/s
Figure 21. Earth's gravity
If the device starts to move from the horizontal position, the gravity will no longer be equal to
1 on the z axis and a value on the x or y axis will be different to 0.
STM3210B_EVAL (left) and STM3210B_SK_IAR (right)
Doc ID 15703 Rev 1
Surface of the Earth
Earth's gravity = 1 g
9.81 m/s 2
STM32-MEMS development kit
2
(1 g).
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