LSM6DS3 IMU Sensor
Measure linear acceleration, angular rate, and temperature from LSM6DS3 sensor
Since R2022b
Add-On Required: This feature requires the Simulink Support Package for Raspberry Pi Hardware add-on.
Libraries:
Simulink Support Package for Raspberry Pi Hardware /
Sensors /
IMU Sensors
Description
The LSM6DS3 IMU Sensor block measures linear acceleration and angular rate along the X, Y, and Z axis using the LSM6DS3 Inertial Measurement Unit (IMU) sensor interfaced with the Raspberry Pi® board. This 6-Degree of Freedom (DoF) IMU sensor comprises of an accelerometer and gyroscope used to measure linear acceleration and angular rate, respectively. The block also measures the temperature from the embedded temperature sensor in LSM6DS3 Sensor.
You can also use the analog filter and composite filter options in the block for the accelerometer values, and use the high pass filter option for gyroscope values.
Ports
Output
Acceleration — Acceleration along each axis as measured by accelerometer
vector
The block outputs acceleration as a 1
-by-3
vector. Each value represents the measurement of acceleration in
m/s^2
along the X, Y, and Z axes.
Dependencies
This output port appears only if you select the Acceleration (m/s2) parameter.
Data Types: double
Angular Velocity — Angular velocity along each axis as measured by gyroscope
vector
The block outputs angular velocity as a
1
-by-3
vector. Each value represents the
measurement of angular velocity in radians per second (rad/s) along the X, Y, and Z
axes.
Dependencies
This output port appears only if you select the Angular Velocity (rad/s) parameter.
Data Types: double
Temperature — Temperature measured by LSM6DS3 sensor
scalar
Temperature (in ℃) measured by LSM6DS3 sensor connected to Raspberry Pi board.
Dependencies
This output port appears only if you select the Temperature (℃) parameter.
Data Types: double
Status — Status of acceleration, angular velocity and temperature measurements
-1
| 0
| 1
Status of acceleration, angular velocity and temperature measurements, specified
as a 1-by-3 vector. 0
indicates that the data read is new,
1
indicates that the data read is not new, and
-1
indicates that the corresponding output is not
selected.
Dependencies
This output port appears only if you select the Status parameter.
Data Types: int8
Parameters
Main
I2C module — Module for communication
1
(default)
Specify the module on the board that you are using for I2C communication.
I2C address — Peripheral addresses to communicate with sensors
0x6A
(default) | 0x6B
The peripheral addresses to communicate with the accelerometer and gyroscope peripherals on the LSM6DS3 sensor are decided by the state of the SDO/SA0 pin on the hardware board. This table provides the peripheral addresses corresponding to the pin and their state.
Pin Name | Pin State | Peripheral Address |
---|---|---|
SDO/SA0 | 0 | 0x6A |
1 | 0x6B |
Acceleration (m/s2) — Set output port for reading acceleration
on
(default) | off
Select this parameter to set Acceleration as one of the output ports.
Angular Velocity (rad/s) — Set output port for reading angular velocity
on
(default) | off
Select this parameter to set Angular Velocity as one of the output ports.
Temperature (℃) — Set output port for reading temperature
on
(default) | off
Select this parameter to set Temperature as one of the output ports.
Status — Set output port for obtaining status of selected outputs
off
(default) | on
Select this parameter to set Status as one of the output ports.
Sample time — Time interval to read data
-1
(default) | positive integer
Specify how often this block reads the data from the LSM6DS3 sensor. When you set this parameter to -1, Simulink determines the best sample time for the block based on the block context within the model.
Advanced
AccelerometerFull scale range — Full scale for measuring linear acceleration
±2g
(default) | ±4g
| ±8g
| ±16g
Select the full scale for measuring linear acceleration (the range of acceleration that the sensor needs to measure).
Output data rate — Rate at which accelerometer data is sampled
12.5 Hz
(default) | 26 Hz
| 52 Hz
| 104 Hz
| 208 Hz
| 416 Hz
| 833 Hz
| 1666 Hz
| 3332 Hz
| 6664 Hz
Select the output data rate at which accelerometer data is sampled, which also determines the bandwidth.
Configure analog filter bandwidth — Set option to configure analog filter bandwidth
off
(default) | on
Select this parameter to configure the bandwidth of analog low-pass filter used in the filtering chain of the accelerometer values.
Analog filter bandwidth — Bandwidth of low-pass analog filter
400 Hz
(default) | 50 Hz
| 100 Hz
| 200 Hz
Select the required bandwidth of the low-pass analog filter.
Dependencies
This parameter appears only if you select the Configure analog filter bandwidth parameter.
Select composite filter — Composite filter used in the filtering chain
No filter
(default) | High pass filter
| Low pass filter
Select the type of composite filter used in the filtering chain for reading accelerometer values.
High pass filter bandwidth — Bandwidth of high pass filter
ODR/100
(default) | ODR/9
| ODR/400
Select the required bandwidth of the high pass filter in the composite filter used in the filtering chain.
Dependencies
This parameter appears only if you select High pass
filter
in the Select composite filter
parameter.
Low pass filter bandwidth — Bandwidth of low pass filter
ODR/50
(default) | ODR/100
| ODR/9
| ODR/400
Select the required bandwidth of the low pass filter in the composite filter used in the filtering chain.
Dependencies
This parameter appears only if you select Low pass
filter
in the Select composite filter
parameter.
Full scale range — Full scale for measuring angular velocity
250 dps
(default) | 125 dps
| 500 dps
| 1000 dps
| 2000 dps
Select the full scale for measuring angular velocity (the range of angular velocity that the sensor needs to measure).
Output data rate — Rate at which gyroscope data is sampled
12.5 Hz
(default) | 26 Hz
| 52 Hz
| 104 Hz
| 208 Hz
| 416 Hz
| 833 Hz
| 1666 Hz
Select the output data rate at which gyroscope data is sampled, which also determines the bandwidth.
Enable high pass filter — Enable high pass filter for gyroscope data
off
(default) | on
Enable the high pass filter for reading gyroscope values.
High pass filter bandwidth — Bandwidth of high pass filter
0.0081 Hz
(default) | 0.0324 Hz
| 2.07 Hz
| 16.32 Hz
Select the required bandwidth of the high pass filter for reading gyroscope values.
Dependencies
This parameter appears only if you select the Enable high pass filter parameter.
Version History
Introduced in R2022b
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