Yes. If you specify 'hardware', then WeeWX will not calculate it at all. It depends on the value being supplied by the hardware.
Usually you want "prefer_hardware". Same with the other calculations. I would change them all. On Sun, Jul 23, 2023 at 4:07 AM Invisible Man <axelle.apvri...@gmail.com> wrote: > Hello Tom, > > I am using an EcoWitt HP2551 (station_type = Interceptor) and WeeWx 4.10.2 > In StdWXCalculate I have the following: I see that heat index is expected > to be provided by my hardware (which obviously doesn't). I suppose I can > just change that to software, or prefer_hardware? > > ``` > [StdWXCalculate] > [[Calculations]] > # Derived quantities are calculated by this service. Possible > values are: > # hardware - use the value provided by hardware > # software - use the value calculated by weewx > # prefer_hardware - use value provide by hardware if available, > # otherwise use value calculated by weewx > > pressure = prefer_hardware > barometer = prefer_hardware > altimeter = prefer_hardware > windchill = hardware > heatindex = hardware > dewpoint = prefer_hardware > inDewpoint = prefer_hardware > rainRate = hardware > maxSolarRad = prefer_hardware > cloudbase = prefer_hardware > humidex = prefer_hardware > appTemp = prefer_hardware > ET = prefer_hardware > windrun = prefer_hardware > ``` > > Thanks, > Axelle > On Friday, July 21, 2023 at 1:12:43 AM UTC+2 Tom Keffer wrote: > >> For most weather stations, heat index is a derived quantity, so it must >> be calculated in software. >> >> What kind of hardware? >> >> What version of WeeWX are you using? >> >> What is in the section [StdWXCalculate] in weewx.conf? >> >> -tk >> >> >> >> On Thu, Jul 20, 2023 at 1:39 PM Invisible Man <axelle....@gmail.com> >> wrote: >> >>> Hi, >>> >>> My weather station has both current temperature and current humidity, >>> but it continuously displays *N/A for humidex* (or is it heat index) ? >>> >>> My template uses this: >>> ``` >>> Humidex: $current.heatindex >>> ``` >>> and my `skin.conf` translates heatindex to Humidex: >>> ``` >>> [[Generic]] >>> # Generic labels, keyed by an observation type. >>> barometer = Barometre >>> dewpoint = Point de rosee >>> heatindex = Humidex >>> ``` >>> I'm not sure I'm doing the right thing. >>> If I query the database : >>> >>> ``` >>> sqlite> select barometer, pressure,outTemp,outHumidity,heatindex from >>> archive where dateTime = 1689884400; >>> 1010.28419008758|998.764391620552|24.8333333333333|93.0|<select >>> heatindex from archive where dateTime = 1689884400; >>> ``` >>> Notice I do have values for everything *except* heatindex (no value). >>> Why don't I have any value? How can I enable it? >>> >>> Thanks >>> >>> PS. I'm using Weewx 4.10.2 on a RPi. >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "weewx-user" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to weewx-user+...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/b47986e2-ae87-41c7-89c3-032447c75e59n%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/b47986e2-ae87-41c7-89c3-032447c75e59n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/90b5c374-f6ae-4795-842d-4e0eb43c846dn%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/90b5c374-f6ae-4795-842d-4e0eb43c846dn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zECweKFRDNgfTs0Sj2HMRNtoNfhcLQ4N6q%2BFsZEZHMKpyQ%40mail.gmail.com.
