If you don't want to set up a graphical interface for calibration a gyroscopic sensor, you can do a simple zero-g offset calibration using just the serial interface. The nice thing about this is it will work for any and all boards, and does not require any additional software installation!
Step 1 - Upload the SensorLab zero rate simplecal Example
We have a simple sketch that will read a few seconds of gyroscope data and calculate zero-rate offset for you
Open up the Adafruit_SensorLab->calibration->gyro_zerorate_simplecal
Open the serial port to launch the SensorLab calibration. You should see your gyroscope detected
You'll see a countdown to warn you that the gyro must be kept perfectly still during calibration
Place the board on a stable flat surface and hold it down with a book or something. The board will take 5 seconds of data and print at each reading
The first three numbers are the current gyro readings
The middle three numbers are the average values (zero rate offsets) in radians/second.
The last numbers are the peak-to-peak values.
At the end, you'll get a summary:
In this case shown above, the screenshot indicates x = 0.0003, y = 0.01, z = 0.0004 rad/s
You may want to take a few measurements to get a couple calculations!
Page last edited March 08, 2024
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