elm327

OBD tool

ELM327 Emulator for testing software interfacing OBDII via ELM327 adapter supporting multi-ECU simulation

A modern, easy to use, Python 3.8+ library for interacting with Vehicles via OBDII devices. Support USB, Bluetooth, Ethernet, and WiFi adapters.

Use ELM327 bluetooth device to evaluate all packages sent through CAN on OBD2 interface.

Developed to assist in managing day-to-day operations of a mobile automotive diagnostic, and car key replacement business. This project integrates several technologies to improve hands-free interaction while driving. Automotive-AI can be customized for 2-way interaction with any available API services.

Extract OBDII data for Hyundai Ioniq Electric (2019), as well as the GPS location (using an external USB device) and publishes it to MQTT broker using a Raspberry Pi Zero W.

Tool to monitor a CAN bus with an ELM327 chip, producing WebSocket + CAN-ETH outputs & pcap log

Extensible Internet Of Things integration service written in Python that can be run in a Raspberry Pi Zero W.

o3DIAG - A Open Source OBD-II Diagnostic Tool for Windows and Linux

The ScanYourCar project connects to the car through an OBD reader (e.g., ELM327) and checks which PIDs (Mode 2 and Mode 3 only) are supported by that car. It also gets a snapshot of the data for each supported PID.

Small ELM327 helper library for serial OBD/CAN adapters.

Read-only OBD-II telemetry dashboard for any vehicle — developed on a 2012 Nissan Leaf. Never-pruned history, a simulated car for development without hardware, and the reverse-engineering method documented openly.

Native Home Assistant custom integration for the Car 2 Home OBD-II mobile app. Push-based WebSocket, no MQTT broker required

A modern, open-source OBD-II diagnostic tool and dashboard built with Python. Designed to work with ELM327 USB adapters, this tool allows you to monitor vehicle sensors in real-time, read/clear check engine lights, and log data for analysis.

Relay reading OBD data from an ELM327 chip, producing HTTP + WebSocket JSON outputs & CSV log

OBD-II (STN11xx/ELM327) interface for automotive diagnostics in Python.

Python 3 interface to ELM327 Devices

Dashboard for Car Diagnostics 🚘🧮

AI agent that connects directly to your car and helps you diagnose issues.

MCP server that connects Claude AI to your car's OBD-II diagnostic port. Read fault codes, live sensor data, and get plain-language explanations. Built with a $15 Bluetooth adapter and a broken convertible.