STEVAL-MKI064V1 STMicroelectronics, STEVAL-MKI064V1 Datasheet - Page 37
![BOARD ADAPTER LSM303DLH DIL24](/photos/37/60/376030/image_steval-mki064v1_sml.jpg)
STEVAL-MKI064V1
Manufacturer Part Number
STEVAL-MKI064V1
Description
BOARD ADAPTER LSM303DLH DIL24
Manufacturer
STMicroelectronics
Series
MEMSr
Datasheets
1.STEVAL-MKI009V1.pdf
(42 pages)
2.STEVAL-MKI063V1.pdf
(47 pages)
3.STEVAL-MKI064V1.pdf
(4 pages)
Specifications of STEVAL-MKI064V1
Sensor Type
Accelerometer and Magnetometer
Sensing Range
±2g, 4g, 8g, ±1.3 ~ 8.1 gauss
Interface
I²C
Sensitivity
1 ~ 3.9 mg/Digit, ±0.01%/°C
Embedded
No
Utilized Ic / Part
LSM303DLH
Sensing Axis
Double Axis
Output Type
Digital
Interface Type
USB
For Use With
497-10682 - MOTEHRBOARD MEMS ADAPTER STM32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
LPR5xxxAL, LPY5xxxAL, LY5xxxAL
Other names
497-10689
UM0701
7.6.2
Chip selection
Depending on the type of architecture, the user has to select either an analog or digital
MEMS device. After, depending on the precision needed, the user will choose either the
LIS344ALH or LIS3LV02DL, if small-angle detection is required. If such a level of precision
is not needed, one can use the LIS302SG or LIS302DL. If the z axis is not affected (the
device is supposed to tilt around the z axis), a 2-axis accelerometer could be used.
Example 1
In the case of the LIS3LV02DL, the resolution is 1 mg per lsb. Thus, for an acceleration
variation of 1 mg, the angle measured on the z axis will be cos
axis, the angle detection will be sin
measurable is therefore 0.057°. This difference between the x and z axis is explained by the
behavior of the sine/cosine function.
Example 2
In the case of the LIS344ALH, the resolution is given by the formula [noise
density*rt(BW*correction factor)]. BW is the bandwidth and the correction factor is linked to
the low-pass filtering for the V
variation of 0.625 mg, the angle detection on the z axis will be cos
the x axis, the angle detection will be sin
Example 3
In the case of the LIS302DL, the resolution is 18 mg per lsb. Thus, for an acceleration
variation of 18 mg, the angle measured on the z axis will be cos
axis, the angle detection will be sin
Example 4
For the LIS302SG the resolution is 2.5 mg. Thus, the smallest angle variation measurable is
0.14°.
Due to the behavior of the sine/cosine functions and the angle and precision expected, the
user will have to consider the measured acceleration on one or all axes.
OUT
Doc ID 15703 Rev 1
. The resolution is 0.625 mg. Thus, for an acceleration
–1
–1
(10
(18
–3
–3
–1
) = 0.057°. The smallest angle variation
) = 1°.
(0.625*10
–3
) = 0.036°.
STM32-MEMS development kit
–1
–1
(1–10
(1-18
–1
(1-0.625*10
–3
–3
) = 2.5°. For the x
) = 10.9°. For the x
–3
) = 2°. For
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