This led [Fixkick] to create an OBD2 simulator using a secondhand Ford ECU supplied with fake sensor data from an Arduino to persuade it that a real engine was connected.

OBD-II cable: $50 (This one comes with an Arduino library, so it's easy to program with.) 7-Segment Display : $13 Arduino Protoshield : $10 (To easily mount the display on top of the Arduino.

These go to an Arduino, which powers a small information display to supplement the car’s dashboard. ... Posted in Transportation Hacks Tagged arduino, elm327, OBD. Post navigation.