V-Link offers a feature that allows you to record ECU data with timestamps and export it as a .json file. All values visible on the chart page will be recorded.

JSON Tool #

To review your data after a drive, copy the JSON file to a USB stick (it will be located in the Pi’s Downloads folder) and use the tool provided on this website.

Plotter.py #

Another option is to use plotter.py, located in the “/resources/tools” folder of the repository. Using the standalone script is straightforward, though you may need to install additional Python packages.

python plotter.py /dir/to/record.json