On Wed, Feb 4, 2026 at 2:22 PM David <[email protected]> wrote: > > 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
OP complains about only finding libraries, and you reply with links to a library-only plotter.
