My home-brew Arduino OBD-II connection kit - Other Hardware Development - Arduino Forum

After many researches and attempts to connect an Arduino with my car through the OBD-II connector and having some successful works of car dashboard gadget, I’ve finally made a kit which enables those who want to playing with Arduino and their cars to jump start quicky. I am maintaining an arduino library for the adapteras an open-source project. It provides Arduino developers an easy-to-use APIs to connect to and retrieve realtime data from a vehicle, which include: Vehicle speed Engine RPM T

OBDuino Help - Project Guidance - Arduino Forum

Testing and Playing with PIR sensors (motion sensor)

Arduino-based CANbus gauge - Page 2 - Megasquirt Support Forum (MSEXTRA)

A hardcore software developer's softcore hardware playground

PDF) Practical Arduino Cool Projects for Open Source Hardware Practical Arduino Cool Projects for Open Source Hardware SOURCE CODE ONLINE LEARN IN-DEPTH ARDUINO TECHNIQUES USING REAL-WORLD PROJECTS

OBD & GPS

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Hack an ELM327 Cable to Make an Arduino OBD2 Scanner : 3 Steps - Instructables

Bike interface OBD - Device Hacking - Arduino Forum

This will be the most comprehensive

I'm trying to make Arduino board directly - Hardware - Arduino Forum

Inexpensive PIC Based OBD-2 Interface

STM32 Blue Pill ARM development board first look: from Arduino to bare metal programming