This book would show step by step create a mobile App to control Arduino robotics using Bluetooth. This is one of the handbooks for the "Educational Robotics", which used to teach the robotics class to students from 8 years old to 16 years old. There are 5 chapters in this book starts from creating APP on mobile, programming, circuit, code and testing. This book would be useful not only to the children, but also their parents enjoy their family time to create their own robotics.