Thank you, Tom. I am using the HC-SR04 for the ultrasound measurement (and DS18B20 for temperature), and I haven't been able to find why it outputs zero on power outage. I guess I have to use the StdQC option instead - though not so nice, as the value in fact may be zero sometimes (due to my "calculations" from cm to degree F).
Jens-Jørgen Kjærgaard Tuenvej 818 9870 Sindal +45 21204417 www.jensjk.dk Den tor. 1. okt. 2020 kl. 14.01 skrev Tom Keffer <[email protected]>: > Hi, Jens > > Best solution would be to solve the problem at its source. It sounds like > the DS18B20 emits a zero, even though the power was off. Any way to change > that? > > Alternatively, you could tell StdQC to reject values outside a "known > good" range: > > [StdQC] > [[MinMax]] > extraTemp2 = 1.0, 1000.0 > > > On Thu, Oct 1, 2020 at 4:57 AM Jens-Jørgen Kjærgaard <[email protected]> > wrote: > >> I have added the temperature of my pond as extraTemp1 and using DS18B20 >> on the raspberry, runs fine. >> Now I have also added the water level of the pond as extraTemp2 using >> ultrasound. Of course I get the reading as degree C when it should be in >> centimeters, but I don't mind - anyway, it works fine. >> But if I get a power outage, the extraTemp1 is just missing, as it should >> be, but extraTemp2 records a value of 0, producing a misleading graph. Is >> there any way to avoid this? >> >> -- >> 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 [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/a6cc889d-fc86-46e4-8fc7-4798c516bb15n%40googlegroups.com >> <https://groups.google.com/d/msgid/weewx-user/a6cc889d-fc86-46e4-8fc7-4798c516bb15n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "weewx-user" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/weewx-user/A8N1YE8mebY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/CAPq0zEDNb_VvaVQAdDT8b2o8YJ9ByCYPjvFfTAu4%3D6xQPLOPqg%40mail.gmail.com > <https://groups.google.com/d/msgid/weewx-user/CAPq0zEDNb_VvaVQAdDT8b2o8YJ9ByCYPjvFfTAu4%3D6xQPLOPqg%40mail.gmail.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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAJPduSRFk6LOqzoAx_egKxxR4GAPbzdv4_fjiaWNYj06XaYqGw%40mail.gmail.com.
