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Author Topic: waveform viewer for PC (free, for windows)  (Read 3486 times)
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Hallo,
I have a simple DIY dataloger that works this way:
1/ the arduino board: samples 2 analog channels, 10bit resolution, 100ms sample speed, and runs about 1 hour.
2/ the data are sent to PC over RS232 line
3/ the data are saved to one big file as ASCII .csv file by printf() function in Processing
Now I'm looking for any waveform viewer for PC (free, for windows) that can load and show data as graphical output.
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In theory there is no difference between theory and practice, however in practice there are many...
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Have you tried OpenOffice Calc, spreadsheet? - http://download.openoffice.org/
- can read CSV
- can handle 65000 lines (less than Excel)
- has graphing features.
- has a macro language to automate some actions
- and free.

Another option I think is GNU-plot , quite powerfull see - http://commons.wikimedia.org/wiki/Category:Gnuplot_diagrams
dowloadable from - http://www.gnuplot.info/download.html
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Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
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gnuplot looks fine. I will try it. Thank you.
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If you already have Excell, you can draw graphs of the results on there. Using gobetwino, you can probably save the results directly to the Excell file. Although it might not be what you are after, you could try...

http://www.mikmo.dk/gobetwino.html (gobetwino)

Onions.
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I will second the vote for gnuplot.  I have found it fussy to install, but quite flexible and powerful once I got it going.  You can see my project here: http://1474orchard.ca/projects/?x=entry:entry110131-003600

Excel is fast to get started with, but you will run out of rope fairly quickly, and it can't be automated in any simple way.
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this project will take data through serial in real time and plot it (scope!).  There is a corresponding Arduino sketch so in order to get your project working with it one or the other would need to be modified.

http://code.google.com/p/xoscillo/
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