This book is for the intermediate to advanced Arduino user. The reader will learn how to develop Arduino applications for the Uno and Nano that drive robots using an Android device. The remote control will use Bluetooth for communications. The Android software application is developed using the MIT App Inventor software. The MIT App Inventor is also under development for the iOS. It may become available soon.One project will use continuous rotation micro servos and the Nano. The second project will use the Uno and geared DC motors. The second project also contains a micro servo for rotating the Ultra-Sonic Sensor. Both projects will use HC-06 Bluetooth devices, the HC-05 will also work with possible minor wiring changes.With the Arduino the software developed is the same for the Uno and Nano, minor changes for uploading occur. The reader can substitute Arduino devices as desired. Possible wiring changes may be necessary depending on the device.The projects were developed on a Windows 10 PC and a Samsung Galaxy smartphone. While not tested the projects will probably work on Linux and OS platforms with some changes.The MIT App Inventor software is free and must be downloaded to your PC. Applications developed are stored in the cloud. A Google account is required, if you use Google mail you already have the account. The book does not go into details on the MIT App Inventor use. We recommend that the reader go through some of the excellent tutorials on-line. The book does provide compete screen shots of the MIT App Inventor Designer and Blocks used. The MIT app is very intuitive and quite powerful. This app greatly simplifies the development of Android applications. This book includes the printed source code and wiring diagrams for the projects. The electronic or digitized source code is available to download for an additional fee for a limited time. While not covered in this book one can easily see the development of many applications for smartphones and tablets.