This is the documentation for the latest (master) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

WSEN-ITDS: 3-axis acceleration sensor


This sample periodically measures acceleration in 3-axis and die temerature for 5 sec in the interval of 300msec in polling mode. Then data ready trigger mode is enabled with the sample frequency of 400Hz and 3-axis data is fetched based on interrupt. The result is displayed on the console.


This sample uses the WSEN-ITDS sensor controlled using the I2C interface. Connect sensor IN1 for interrupt(data ready trigger) to Disco board D8 pin Connect sensor CS pin high to enable I2C communication, SAO to ground for 0x18 I2C address selection.

Building and Running

This project outputs sensor data to the console. It requires a WSEN-ITDS sensor, which is present on the disco_l475_iot1 board.

west build -b None samples/sensor/wsen_itds/
west flash

Sample Output

Testing the polling mode.
Accl (m/s): X=2.311466, Y=-39.433716, Z=2.636890
Temperature (Celsius): 28.000000

<repeats 5sec every 300ms>

Polling mode test finished.
Testing the trigger mode.
Testing data ready trigger.
any drdy.
Accl (m/s): X=8.039883, Y=-1.780260, Z=6.063412

<repeats 5sec every 300ms>

Data ready trigger test finished.
Trigger mode test finished.