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I3G4250D: 3-axis digital output gyroscope

Description

This sample application configures the gyroscope with a fixed sampling rate and polls the measurements with the same rate and displays the measurements along with a timestamp since startup.

Requirements

This sample application uses the I3G4250D sensor connected via SPI interface. This is the case for example for stm32f3_disco@E board devicetree.

Building and Running

To build the application a board with I3G4250D on SPI interface has to be chosen, or a custom devicetree overlay has to be provided. Here STM32F3 discovery board is used.

# From the root of the zephyr repository
west build -b stm32f3_disco@E samples/sensor/i3g4250d
west flash

Sample Output

*** Booting Zephyr OS build zephyr-v2.6.0-1897-ga09838064f26  ***
Set sensor sampling frequency to 200.000000 Hz.
Polling at 200.000000 Hz
12 ms: x 2454.031430 , y 2336.015410 , z -1800.030108
22 ms: x -248.003106 , y -268.979704 , z 6.018390
32 ms: x -214.989906 , y -237.023468 , z 6.013926
41 ms: x -193.978308 , y -205.032232 , z 2.000356
51 ms: x -158.986716 , y -171.014568 , z 3.969998
60 ms: x -138.979582 , y -153.003326 , z 3.978748
70 ms: x -120.981554 , y -129.982800 , z -13.971422
80 ms: x -106.984060 , y -112.967272 , z -80.006572