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? -- Chris Green ยท
