pressure_conf - bruno-beloff/scs_mfr GitHub Wiki

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DESCRIPTION

The pressure_conf utility is used to specify whether or not a digital barometer is present and, optionally, the altitude of the device. This information is used to determine the pressure at sea level ("p0"). If the altitude is not specified, then no p0 value is returned by the pressure_sampler and climate_sampler utilities.

If the MPL115A2 sensor is used, then determination of p0 requires the temperature sensor in the MPL115A2 digital barometer to be calibrated. This is done using the mpl115a2_calib utility.

Forthcoming versions of the pressure_conf utility will support a "GPS" mode, in which altitude is found from a GPS receiver.

The climate_sampler and pressure_sampler sampler processes must be restarted for changes to take effect.

SYNOPSIS

pressure_conf.py { [-m MODEL] [-a ALTITUDE] | -d } [-v]

Options
--version	show program's version number and exit
-h, --help	show this help message and exit
-m MODEL, --model=MODEL	barometer model { ICP \| MPL }
-a ALTITUDE, --altitude=ALTITUDE	altitude in metres or 'GPS' for GPS altitude
-d, --delete	delete the pressure configuration
-v, --verbose	report narrative to stderr

EXAMPLES

./pressure_conf.py -m ICP -a 100

FILES

~/SCS/conf/pressure_conf.json

DOCUMENT EXAMPLE

{"model": "ICP", "altitude": 100}