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The Open Vehicle Monitoring System - [1] allows a user to connect to the CAN bus in a vehicle so that the user can view and monitor several parameters of vehicle operation,[2] such as state of battery charge for an electric vehicle. The system includes hardware (a board that connects to the vehicle), a server, and mobile device software. Early work on this system was done by enthusiasts of the Tesla Roadster ; the system is also being adapted for use with the Nissan LEAF, Volt/Ampera, Renault Twizy, Think City, Tazzari Zero, Mitsubishi iMiev and Kyburg and has a Generic OBDII Modul. OVMS has similarities to Nissan's proprietary CarWings system.