In this tutorial we will learn how to control the Arduino via bluetooth using the android application. First, we will make the robot car for control it. And, we will use Bluetooth module (HC05 or HC06) for the communication. And last, we will create the android application for sending commands to the robot car.
We will use MIT App Inventor for create the android application. Also, I will use 3D printed chassis for the robot car. But, you can use any chassis. If you want, you can download my 3D model and use it.