CanoPy

Canopy is a visualization tool for plotting CAN bus message payloads.

Installation

$ pip install canopy-viz

Usage

Run canopy from the command line with the appropriate arguments per your adapter. Refer to the python-can docs for argument info.

$ canopy -i socketcan -c can0 -b 500000

Pressing i on your keyboard will ignore and clear all currently displayed id's. Using arrow up or arrow down will adjust message buffer sizes.

Alternatively, a saved log file can be visualized by redirecting the output to a virtual interface.

First ensure the interface is up

$ sudo modprobe vcan
$ sudo ip link add dev vcan0 type vcan
$ sudo ip link set up vcan0

Then start CanoPy

$ canopy -i socketcan -c vcan0

And use canplayer to replay the log file while redirecting output

$ canplayer -I candump-messages.log vcan0=can0

Screenshot

Todo

• Display id's sorted from min to max
• Add a way to remove specific id's
• Implement unit/integration tests

License

MIT