With the widespread use of smart phones, applications using the Android operating system are encountered in many different areas. In the prepared study, the control of a car working with a DC motor was implemented with the interface designed in the Android operating system. Wi-Fi technology is preferred for the communication between the mobile device and the device and the control card on the vehicle. The open source Arduino UNO module is used in the control card on the vehicle. At the end of the study, the forward, backward, right and left movement controls of the vehicle were successfully completed.