On Wed, 4 Feb 2026 at 09:20, Chris Green <[email protected]> wrote: > > I'm looking for a program to do simple chart plotting, e.g. I have > some voltage measurements taken (say) once a minute and I want to > display how the voltage varies over (say) a day. So that's 1440 > measurements. > > This can be web or desktop, all I want is a window with a line drawn > across it really, a scale would be handy and the ability to show more > than one plot (e.g. voltage and current maybe). > > Source of data will almost certainly be a database as the data will be > coming from a headless Raspberry Pi and I already have that set up > writing values to a sqlite3 database. Obviously I can change the data > format, it is pretty simple to change it to CSV or whatever. > > Searching the main Debian repositories has brought up very little, > just a couple of libraries but no actual, runnable, programs. > > Can anyone suggest anything that will do what I want?
https://matplotlib.org/stable/users/explain/quick_start.html https://matplotlib.org/stable/tutorials/index.html https://matplotlib.org/stable/gallery/index.html https://packages.debian.org/trixie/python3-matplotlib
