I was trying to apply a barometric calibration in StdCalibrate. It does not appear to actually get reported other than I see the calibrated value appear on WU briefly and then it reverts back to the uncalibrated value.
From my weewx.conf file:
[StdCalibrate]
[[Corrections]]
# For each type, an arbitrary calibration expression can be given.
# It should be in the units defined in the StdConvert section.
# Example:
foo = foo + 0.2
barometer = barometer + 0.05
Here is syslog when I start Weewx:
Jan 15 14:37:30 raspberrypi systemd[1]: Starting LSB: weewx weather system...
Jan 15 14:37:30 raspberrypi weewx[1348]: engine: Initializing weewx version 3.6.2
Jan 15 14:37:30 raspberrypi weewx[1348]: engine: Using Python 2.7.9 (default, Sep 17 2016, 20:26:04) #012[GCC 4.9.2]
Jan 15 14:37:30 raspberrypi weewx[1348]: engine: Platform Linux-4.4.34-v7+-armv7l-with-debian-8.0
Jan 15 14:37:30 raspberrypi weewx[1348]: engine: pid file is /var/run/weewx.pid
Jan 15 14:37:30 raspberrypi weewx[1337]: Starting weewx weather system: weewx.
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Using configuration file /etc/weewx/weewx.conf
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Initializing engine
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading station type AcuRite (weewx.drivers.acurite)
Jan 15 14:37:30 raspberrypi systemd[1]: Started LSB: weewx weather system.
Jan 15 14:37:30 raspberrypi weewx[1352]: acurite: driver version is 0.24
Jan 15 14:37:30 raspberrypi weewx[1352]: acurite: R2 will be decoded using sensor constants
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.engine.StdTimeSynch
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.engine.StdTimeSynch
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.engine.StdConvert
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: StdConvert target unit is 0x1
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.engine.StdConvert
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.engine.StdCalibrate
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.engine.StdCalibrate
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.engine.StdQC
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.engine.StdQC
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.wxservices.StdWXCalculate
Jan 15 14:37:30 raspberrypi weewx[1352]: wxcalculate: The following values will be calculated: barometer=prefer_hardware, windchill=prefer_hardware, dewpoint=prefer_hardware, appTemp=prefer_hardware, rainRate=prefer_hardware, windrun=prefer_hardware, heatindex=prefer_hardware, maxSolarRad=prefer_hardware, humidex=prefer_hardware, pressure=prefer_hardware, inDewpoint=prefer_hardware, ET=prefer_hardware, altimeter=prefer_hardware, cloudbase=prefer_hardware
Jan 15 14:37:30 raspberrypi weewx[1352]: wxcalculate: The following algorithms will be used for calculations: altimeter=aaNOAA, maxSolarRad=RS
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.wxservices.StdWXCalculate
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.engine.StdArchive
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Archive will use data binding wx_binding
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Record generation will be attempted in 'hardware'
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Using archive interval of 300 seconds (specified in weewx configuration)
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Use LOOP data in hi/low calculations: 1
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Using binding 'wx_binding' to database 'weewx.sdb'
Jan 15 14:37:30 raspberrypi weewx[1352]: manager: Starting backfill of daily summaries
Jan 15 14:37:30 raspberrypi weewx[1352]: manager: Daily summaries up to date
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.engine.StdArchive
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.restx.StdStationRegistry
Jan 15 14:37:30 raspberrypi weewx[1352]: restx: StationRegistry: Registration not requested.
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.restx.StdStationRegistry
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.restx.StdWunderground
Jan 15 14:37:30 raspberrypi weewx[1352]: restx: Wunderground-RF: Data for station KNCDUNN5 will be posted
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.restx.StdWunderground
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.restx.StdPWSweather
Jan 15 14:37:30 raspberrypi weewx[1352]: restx: PWSWeather: Data for station KNCDUNN5 will be posted
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.restx.StdPWSweather
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.restx.StdCWOP
Jan 15 14:37:30 raspberrypi weewx[1352]: restx: CWOP: Data for station KG4AGD will be posted
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.restx.StdCWOP
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.restx.StdWOW
Jan 15 14:37:30 raspberrypi weewx[1352]: restx: WOW: Posting not enabled.
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.restx.StdWOW
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.restx.StdAWEKAS
Jan 15 14:37:30 raspberrypi weewx[1352]: restx: AWEKAS: Posting not enabled.
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.restx.StdAWEKAS
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.engine.StdPrint
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.engine.StdPrint
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Loading service weewx.engine.StdReport
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Finished loading service weewx.engine.StdReport
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Starting up weewx version 3.6.2
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Station does not support reading the time
Jan 15 14:37:30 raspberrypi weewx[1352]: engine: Starting main packet loop.
Jan 15 14:37:30 raspberrypi weewx[1352]: acurite: Found station at bus=001 device=008
Jan 15 14:37:31 raspberrypi weewx[1352]: restx: raw packet: {'sensor_id': 498, 'outHumidity': 62, 'maxSolarRad': None, 'altimeter': 30.23504595660019, 'heatindex': 58.8, 'inDewpoint': None, 'channel': 3, 'inTemp': 73.94, 'barometer': 30.244346115411837, 'windchill': 58.8, 'dewpoint': 45.80878260610244, 'humidex': 59.296429813025824, 'pressure': 29.990655305, 'sensor_battery': 0, 'rxCheckPercent': 100.0, 'rainRate': 0, 'usUnits': 1, 'txTempBatteryStatus': 0, 'appTemp': 51.388215176186876, 'dateTime': 1484509051, 'outTemp': 58.8, 'windSpeed': 11.423192116022717, 'rssi': 3, 'cloudbase': 3185.48961921927}
Jan 15 14:37:31 raspberrypi weewx[1352]: restx: cached packet: {'sensor_id': 498, 'outHumidity': 62, 'humidex': 59.296429813025824, 'rainRate': 0, 'heatindex': 58.8, 'inTemp': 73.94, 'channel': 3, 'barometer': 30.244346115411837, 'windchill': 58.8, 'dewpoint': 45.80878260610244, 'pressure': 29.990655305, 'sensor_battery': 0, 'rxCheckPercent': 100.0, 'altimeter': 30.23504595660019, 'usUnits': 1, 'txTempBatteryStatus': 0, 'appTemp': 51.388215176186876, 'dateTime': 1484509051, 'outTemp': 58.8, 'windSpeed': 11.423192116022717, 'rssi': 3, 'cloudbase': 3185.48961921927}
Jan 15 14:37:31 raspberrypi weewx[1352]: acurite: next read in 18 seconds
Jan 15 14:37:49 raspberrypi weewx[1352]: acurite: Found station at bus=001 device=008
Jan 15 14:37:49 raspberrypi weewx[1352]: restx: raw packet: {'sensor_id': 498, 'maxSolarRad': None, 'altimeter': None, 'heatindex': None, 'inDewpoint': None, 'rain_total': 99.9236, 'channel': 3, 'barometer': None, 'windchill': None, 'dewpoint': None, 'rain': None, 'humidex': None, 'pressure': None, 'sensor_battery': 0, 'rxCheckPercent': 100.0, 'rainRate': 0, 'usUnits': 1, 'txTempBatteryStatus': 0, 'appTemp': None, 'dateTime': 1484509069, 'windDir': 112.5, 'windSpeed': 8.851330359029168, 'rssi': 3, 'cloudbase': None}
Thanks,
AB