Main Content

readAcceleration

Read one acceleration data sample from LSM9DS1 sensor

Since R2021a

collapse all in page

Syntax

[accelReadings,timestamp] = readAcceleration(sensor)

Description

[accelReadings,timestamp] = readAcceleration(sensor) returns one sample of the acceleration data from the LSM9DS1 IMU sensor. The acceleration sample is returned as a 3-by-1 vector in m/s2 along the X, Y, and Z axes. The function also returns the timestamp at which MATLAB® receives the acceleration data from the LSM9DS1 sensor. The timestamp output is optional.

example

Examples

collapse all

Read the acceleration data from the LSM9DS1 IMU sensor on the X, Y, and Z axes.

Create a connection from MATLAB to the Raspberry Pi® hardware board.

mypi = raspi;
mypi = 

  Raspi with Properties:

           DeviceAddress: 'raspberrypi-hysdu8X38o'
                    Port: 18734
               BoardName: 'Raspberry Pi 3 Model B+'
           AvailableLEDs: {'led0'}
    AvailableDigitalPins: [4,5,6,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27]
    AvailableSPIChannels: {‘CE0’,’CE1’}
       AvailableI2CBuses: {'i2c-1'}
             I2CBusSpeed: 100000
        AvailabelWebCams: mmal service 16.1 (platform:bcm2835-v4l2)

Create an lsm9ds1 sensor object on the I2C bus 'i2c-1' on addresses '0x6A' and '0x1C'.

sensor = lsm9ds1(r,'Bus','i2c-1','I2CAddress',{'0x6A','0x1C'});
sensor = 

  lsm9ds1 with properties:

                         I2CAddress: 106 ("0x6A")
                                   : 28 ("0x1C")
                                Bus: i2c-1

Return one sample of acceleration data read from the LSM9DS1 sensor on the X, Y, and Z axes.

[accelReadings,timestamp] = readAcceleration(sensor);
accelReadings =

  data

    0.1712   -0.7095    9.5843


timestamp = 

  datetime

   9-Dec-2020 16:11:59.074

Since the timestamp output is optional, you can obtain only the acceleration data from the LSM9DS1 sensor.

[accelReadings] = readAcceleration(sensor);
accelReadings =

  data

    0.1712   -0.7095    9.5843

Input Arguments

collapse all

LSM9DS1 sensor object connection to the Raspberry Pi hardware board specified as a lsm9ds1 object.

Example: sensor = lsm9ds1(mypi) creates a connection to the LSM9DS1 sensor on the Raspberry Pi object mypi.

Output Arguments

collapse all

Read the acceleration data from the LSM9DS1 sensor on the X, Y, and Z axes.

Read the date and time at which MATLAB receives the acceleration sample value from the LSM9DS1 sensor, specified as a datetime.

Extended Capabilities

Version History

Introduced in R2021a

See Also

| | | | | |