mpl115a2_calib - bruno-beloff/scs_mfr GitHub Wiki
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DESCRIPTION
The mpl115a2_calib utility is used to calibrate the temperature sensor in the MPL115A2 digital barometer. The utility operates by measuring the temperature using a Sensirion SHT sensor, measuring the temperature ADC count of the MPL115A2 sensor, and back-calculating the offset.
If calibration has been performed, the pressure_sampler utility reports temperature in addition to actual pressure ("pA"). If the host device altitude has also been set, the pressure_sampler additionally reports equivalent pressure at sea level ("p0").
The pressure_sampler sampler processes must be restarted for changes to take effect.
SYNOPSIS
mpl115a2_calib.py [{ -s | -d }] [-v]
Options | |
---|---|
--version | show program's version number and exit |
-h, --help | show this help message and exit |
-s, --set | set MPL115A2 calibration from internal SHT |
-d, --delete | delete the MPL115A2 calibration |
-v, --verbose | report narrative to stderr |
EXAMPLES
./mpl115a2_calib.py -s
FILES
~/SCS/conf/mpl115a2_calib.json
DOCUMENT EXAMPLE
{"calibrated-on": "2018-06-20T10:25:39.045+00:00", "c25": 511}