python-can

import can, cantools
from cantools.j1939 import pgn_from_frame_id

CHANNEL = "1f72d84a-usb.local@1"

db = cantools.database.load_file("j1939.dbc", strict=False)
eec1 = db.get_message_by_name("EEC1") 
EEC1_PGN = pgn_from_frame_id(eec1.frame_id)

with can.Bus(interface="cansub", channel=CHANNEL, bitrate=250_000, data_bitrate=1_000_000) as bus:
    for msg in bus:
        if pgn_from_frame_id(msg.arbitration_id) == EEC1_PGN:
            print(f"{msg.timestamp:.3f}  EngineSpeed = {eec1.decode(msg.data)['EngineSpeed']} rpm")

About

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Python is a popular programming language. Our python-can-cansub package registers the CANsub as a python-can interface, making it compatible with all python-can tools/workflows.

Get started via the GitHub link below - and see this section for extra demos:

1. Configure - configure the device via python-can / REST

2. Demos - simple demo examples / mini applications

Note

For guidance on using Python e.g. for OBD2, J1939 or NMEA 2000 see the protocols section

Note

We strongly recommend seeing our AI assistants guide when building Python scripts/apps

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Installation & get started (GitHub)

Download the GitHub repository and follow the README documentation:

• python-can-cansub

Note

Each python-can-cansub release supports one API version. The API version for each CANsub firmware release is listed in the CANsub Docs changelog