SelfSync1D sensor calibration message
One-dimensional sensor calibration messages hold the calibration used to convert the raw readings of single-axis sensors (barometer) into physical units.
Fields
Moment the message refers to, in UTC. FIT stores it as seconds since the FIT epoch (December 31, 1989, 00:00:00 UTC); decoders usually expose it as a regular date.
sensorTypeEnumSensor the calibration applies to: accelerometer, gyroscope, compass (magnetometer) or barometer.
4 possible values
accelerometerbarometergyroscopecompass
calibrationFactorUint32Factor used to convert raw ADC readings to physical units (g, degrees per second…).
Calibration factor of the barometer.
Divisor applied together with calibrationFactor.
levelShiftUint32Value subtracted from the raw readings to bring them back around zero before applying the calibration.
offsetCalSint32Internal calibration offset.
mesgNumStringGlobal message number identifying the kind of message. Decoders use it to know which profile to apply to the data.