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sysfs-bus-iio-scd30
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What: /sys/bus/iio/devices/iio:deviceX/calibration_auto_enable
Date: June 2020
KernelVersion: 5.8
Contact: [email protected]
Description:
Contaminants build-up in the measurement chamber or optical
elements deterioration leads to sensor drift.
One can compensate for sensor drift by using automatic self
calibration procedure (asc).
Writing 1 or 0 to this attribute will respectively activate or
deactivate asc.
Upon reading current asc status is returned.
What: /sys/bus/iio/devices/iio:deviceX/calibration_forced_value
Date: June 2020
KernelVersion: 5.8
Contact: [email protected]
Description:
Contaminants build-up in the measurement chamber or optical
elements deterioration leads to sensor drift.
One can compensate for sensor drift by using forced
recalibration (frc). This is useful in case there's known
co2 reference available nearby the sensor.
Picking value from the range [400 1 2000] and writing it to the
sensor will set frc.
Upon reading current frc value is returned. Note that after
power cycling default value (i.e 400) is returned even though
internally sensor had recalibrated itself.