The EV3 has the I2C communication interface, as well as the Arduino, thus enabling the integration of these platforms. This project is a project about Arduino (free hardware electronic prototyping platform) with Lego Mindstorms EV3 (programming platform for LEGO robot development) integration. I2C protocol between Mindstorms EV3 and Arduino.PID Control on Arduino to control motors on Mindstorms EV3.