ST SensorTile.box

Overview

This sample provides an example of how to read sensors data from the SensorTile.box board.

This sample enables all sensors of SensorTile.box board, and then periodically reads and displays data on the console from the following sensors:

  • HTS221: ambient temperature and relative humidity
  • LPS22HH: ambient temperature and atmospheric pressure
  • LIS2DW12: 3-Axis acceleration
  • LSM6DSOX: 6-Axis acceleration and angular velocity
  • STTS751: temperature sensor

Requirements

The application requires a SensorTile.box board connected to the PC through USB. The board declares itself as a USB CDC class device.

References

Building and Running

Build and flash the sample in the following way:

# From the root of the zephyr repository
west build -b sensortile_box samples/boards/sensortile_box
west flash

Please note that flashing the board requires a few preliminary steps described in ST SensorTile.box.

Then, power cycle the board by disconnecting and reconnecting the USB cable. Run your favorite terminal program to listen for output.

$ minicom -D <tty_device> -b 115200

Replace <tty_device> with the port where the SensorTile.box board can be found. For example, under Linux, /dev/ttyUSB0. The -b option sets baud rate ignoring the value from config.

Sample Output

The sample code outputs sensors data on the SensorTile.box console.

SensorTile.box dashboard

HTS221: Temperature: 26.4 C
HTS221: Relative Humidity: 60.5%
LPS22HH: Temperature: 28.4 C
LPS22HH: Pressure:99.694 kpa
LIS2DW12: Accel (m.s-2): x: 0.306, y: -0.459, z: 10.031
IIS3DHHC: Accel (m.s-2): x: -0.581, y: 0.880, z: -9.933
LSM6DSOX: Accel (m.s-2): x: -0.158, y: 0.158, z: 9.811
LSM6DSOX: GYro (dps): x: 0.003, y: 0.000, z: -0.005
STTS751: Temperature: 27.0 C
1:: lps22hh trig 206
1:: lis2dw12 trig 410
1:: lsm6dsox acc trig 836
1:: lsm6dsox gyr trig 836
1:: iis3dhhc trig 2422

<repeats endlessly every 2s>

If you move the board around or put your finger on the temperature sensor, you will see the accelerometer, gyro, and temperature values change.