![]() We implemented an OBD-II system located at the end of the test vehicle (a bus) –which corresponds to the scanner or diagnosis unit– in an Arduino Mega 2560 development board connected to a CAN transceiver-controlled composed module. ![]() The on board diagnosis systems allow to retrieve the stored failure codes together with a large number of variables –important for the diagnosis– such as speed, fuel level, and CO2 emissions in real-time. This project implements a system based on the OBD-II protocol over a CAN bus, which allows the visualization of variables in real-time and the performing of a diagnosis of the vehicle state showing the operating, failure, and energy consumption codes. ![]() ![]() From its origin, the main objective of the OBD standard has been the control of the gases emitted by the vehicles and its corresponding effects in the environment. ![]()
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