Abstract: The design, implementation and testing of an automobile Engine Control Unit (ECU) data acquisition system is presented. The ECU parameters are graphically analyzed on a PC (Windows/Linux) or a smart phone. The graphical analysis software for real-time data monitoring are developed on Qt framework for PC use and android platform for smart phone use. The use of open source software Qt framework and android SDK for GUI development is a highlight of this system. The wireless communication features of the system using Zigbee technology allows remote real-time monitoring of the vehicle on test track.

Keywords: Android, Engine Control Unit, OBD protocol, Qt Framework, Zigbee.