Serial module for handling live sensor data from a vehicle's OBD-II port


Keywords
obd, obdii, obd-ii, obd2, car, serial, vehicle, diagnostic
License
GPL-3.0
Install
pip install obd==0.7.1

Documentation

python-OBD

A python module for handling realtime sensor data from OBD-II vehicle ports. Works with ELM327 OBD-II adapters, and is fit for the Raspberry Pi.

Installation

$ pip install obd

Basic Usage

import obd

connection = obd.OBD() # auto-connects to USB or RF port

cmd = obd.commands.SPEED # select an OBD command (sensor)

response = connection.query(cmd) # send the command, and parse the response

print(response.value) # returns unit-bearing values thanks to Pint
print(response.value.to("mph")) # user-friendly unit conversions

Documentation

Available at python-obd.readthedocs.org

Commands

Here are a handful of the supported commands (sensors). For a full list, see the docs

note: support for these commands will vary from car to car

  • Calculated Engine Load
  • Engine Coolant Temperature
  • Fuel Pressure
  • Intake Manifold Pressure
  • Engine RPM
  • Vehicle Speed
  • Timing Advance
  • Intake Air Temp
  • Air Flow Rate (MAF)
  • Throttle Position
  • Engine Run Time
  • Fuel Level Input
  • Number of warm-ups since codes cleared
  • Barometric Pressure
  • Ambient air temperature
  • Commanded throttle actuator
  • Time run with MIL on
  • Time since trouble codes cleared
  • Hybrid battery pack remaining life
  • Engine fuel rate

License

GNU GPL v2

This library is forked from:

Enjoy and drive safe!