STEVAL-MKI032V1 STMicroelectronics, STEVAL-MKI032V1 Datasheet - Page 35

BOARD DEMO ACCELEROMETER DIL24

STEVAL-MKI032V1

Manufacturer Part Number
STEVAL-MKI032V1
Description
BOARD DEMO ACCELEROMETER DIL24
Manufacturer
STMicroelectronics
Series
MEMSr
Datasheets

Specifications of STEVAL-MKI032V1

Design Resources
STEVAL-MKI032V1 Schematic STEVAL-MKI032V1 Gerber Files STEVAL-MKI032V1 Bill of Materials
Sensor Type
Accelerometer, 3 Axis
Sensing Range
±2.3g, 9.2g
Interface
I²C, SPI
Sensitivity
18 ~ 72 mg/Digit
Embedded
No
Utilized Ic / Part
STM32 and MEMS Demo Boards
Interface Type
SPI, I2C
For Use With
497-6048 - BOARD EVALUATION FOR STM32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-9047
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).
35/42
A

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