[weewx-user] plot custom variable in select time frame using python matplotlib

2023-01-19 Thread mihec
Hi, I would like to plot e.g. temperature and solar radiation from my sqlite3 weewx's database file for the whole last year or just selected season. Is there a code example how to do that? The problem I have is actually to extract the data from the database file. The plotting part I can handle.

Re: [weewx-user] Corrections for barometric pressure from TWI station

2023-01-19 Thread pannetron
I've left my local twi.py reporting what the station reports as "barometer". I'm pretty sure the station actually reports a calculated "altimeter" from its pressure sensor. To review, I calibrated my console to display local pressure adjusted to my altitude. If I let the driver report values

Re: [weewx-user] plot custom variable in select time frame using python matplotlib

2023-01-19 Thread Tom Keffer
WeeWX does not use matplotlib. You would have to extract the data from the database, then use it. The command-line tool "sqlite3 " can emit CSV files. On Thu, Jan 19, 2023 at 9:15 AM mihec wrote: > Hi, > I would like to plot e.g. temperature and solar radiation from

Re: [weewx-user] plot custom variable in select time frame using python matplotlib

2023-01-19 Thread mihec
Thanks, I'll have a look how to do that. Ĩetrtek, 19. januar 2023 ob 20:25:16 UTC+1 je oseba tke...@gmail.com napisala: > WeeWX does not use matplotlib. > > You would have to extract the data from the database, then use it. The > command-line tool "sqlite3 " can emi

[weewx-user] new river level monitor

2023-01-19 Thread Graham Eddy
i posted some time ago about my trusty old river level monitor. i am still receiving occasional enquiries about it - yes, unfortunately that product i used is no longer available. whilst it is still working for me, i have now deployed a new river level monitor in parallel, some details below ol

[weewx-user] 433Mhz Barometer?

2023-01-19 Thread Glen Collins
Hi everyone. Does anyone know of a barometer that transmits on 433Mhz? I have one that transmits on 915Mhz but not to my liking. I'm interested in consolidating into one frequency to make my setup easier. I've been searching searching and have yet to find one out of the US. Thanks Glen Collin

Re: [weewx-user] Re: Trouble viewing new data column(s)

2023-01-19 Thread 'Cameron D' via weewx-user
I hope this is not a real example you are suggesting - part_per_million would be a concentration, which already has an implied volume component according to whether it is in air, water etc. A unit of part_per_million_per_cubic_meter does not make any sense to me. On Wednesday, 18 January